| Agapanthinus callophilus Cockerell, 1923 | |
| Allodape melipona | |
| Allodapula empeyi Michener, 1975 | |
| Amegilla (Amegilla) capensis Friese, 1905 | |
| Amegilla (Amegilla) incana Klug, 1845 | |
| Amegilla (Amegilla) quadrifasciata de Villers, 1789 | White-banded Digger Bee |
| Amegilla (Asaropoda) dawsoni Rayment, 1951 | Dawson´s burrowing bee |
| Amegilla (Megamegilla) acraensis Fabricius, 1793 | Mining Bee |
| Amegilla acraensis tellervo | |
| Amegilla (Zebramegilla) spilostoma Cameron, 1905 | |
| Amegilla (Zonamegilla) thorogoodi Rayment, 1939 | |
| Amegilla candida Smith, 1879 | |
| Ammobates (Euphileremus) oraniensis Lepeletier, 1841 | |
| Ammobates bilobatus | |
| Ammobates branchi | |
| Ancyloscelis apiformis Fabricius, 1793 | |
| Ancyloscelis sejunctus Cockerell, 1933 | |
| Anthophora (Anthophora) plumipes Pallas, 1772 | Hairy footed flower bee |
| Anthophora (Anthophoroides) californica Cresson, 1869 | California Anthophora |
| Anthophora (Anthophoroides) linsleyi Timberlake, 1941 | |
| Anthophora (Anthophoroides) marginata Smith, 1854 | |
| Anthophora (Anthophoroides) phaceliae Brooks, 1988 | |
| Anthophora (Anthophoroides) signata Brooks, 1988 | |
| Anthophora (Anthophoroides) vallorum Cockerell, 1896 | |
| Anthophora (Clisodon) furcata Panzer, 1798 | Fork Tailed Flower Bee |
| Anthophora (Clisodon) terminalis Cresson, 1869 | Orange-Tipped Wood-Digger Bee |
| Anthophora (Heliophila) abroniae Timberlake, 1937 | |
| Anthophora (Heliophila) albata Cresson, 1876 | |
| Anthophora (Heliophila) cockerelli Timberlake, 1937 | |
| Anthophora (Heliophila) columbariae Timberlake &..., 1937 | |
| Anthophora (Heliophila) curta (Provancher, 1895) | ⇒ Anthophora squammulosa Dours, 1869 |
| Anthophora (Heliophila) exigua Cresson, 1879 | |
| Anthophora (Heliophila) flavocincta Huard, 1897 | |
| Anthophora (Heliophila) franciscana (Cockerell, 1949) | ⇒ Anthophora squammulosa Dours, 1869 |
| Anthophora (Heliophila) hololeuca Cockerell, 1923 | |
| Anthophora (Heliophila) lanzarotensis Tkalcu, 1993 | |
| Anthophora (Heliophila) maculifrons Cresson, 1879 | |
| Anthophora (Heliophila) mortuaria Timberlake, 1937 | |
| Anthophora (Heliophila) peritomae Cockerell, 1905 | |
| Anthophora (Heliophila) petrophila Cockerell, 1905 | |
| Anthophora (Heliophila) phenax Cockerell, 1898 | |
| Anthophora (Heliophila) salazariae Timberlake, 1937 | |
| Anthophora (Heliophila) squammulosa Dours, 1869 | |
| Anthophora (Heliophila) tridentella Priesner, 1957 | |
| Anthophora (Heliophila) vestita Smith, 1854 | |
| Anthophora (Lophanthophora) affabilis Cresson, 1878 | |
| Anthophora (Lophanthophora) coptognatha Timberlake, 1951 | |
| Anthophora (Lophanthophora) dammersi Timberlake, 1937 | |
| Anthophora (Lophanthophora) fedorica Cockerell, 1906 | |
| Anthophora (Lophanthophora) neglecta Timberlake &..., 1936 | |
| Anthophora (Lophanthophora) pacifica Cresson, 1878 | |
| Anthophora (Lophanthophora) porterae Cockerell, 1900 | |
| Anthophora (Lophanthophora) ursina Cresson, 1869 | |
| Anthophora (Melea) abrupta Say, 1837 | Vegetable hummingbird |
| Anthophora (Melea) bomboides Kirby, 1837 | Bumble-bee-mimic Anthophora |
| Anthophora (Melea) occidentalis Cresson, 1869 | Digger bee |
| Anthophora (Micranthophora) rhodothorax Michener, 1936 | |
| Anthophora (Mystacanthophora) capistrata Cresson, 1878 | |
| Anthophora (Mystacanthophora) incerta Spinola, 1851 | |
| Anthophora (Mystacanthophora) montana Cresson, 1869 | Rocky Mountain Anthophora |
| Anthophora (Mystacanthophora) paranensis Holmberg, 1903 | |
| Anthophora (Mystacanthophora) tricolor Fabricius, 1775 | |
| Anthophora (Mystacanthophora) urbana Cresson, 1878 | |
| Anthophora (Mystacanthophora) walshii Cresson, 1869 | Walsh´s Anthophora |
| Anthophora (Paramegilla) basalis Smith, 1854 | |
| Anthophora (Paramegilla) centriformis Cresson, 1879 | |
| Anthophora (Paramegilla) fulvicauda Timberlake, 1937 | |
| Anthophora (Paramegilla) harmalae Morawitz, 1878 | |
| Anthophora (Petalosternon) similis Fedtschenko, 1875 | |
| Anthophora (Pyganthophora) alluaudi Perez, 1902 | |
| Anthophora (Pyganthophora) cincreus Friese, 1896 | |
| Anthophora (Pyganthophora) crotchii Cresson, 1878 | Crotch´s Anthophora |
| Anthophora (Pyganthophora) edwardsii Cresson, 1878 | |
| Anthophora (Pyganthophora) forbesi Cockerell, 1907 | |
| Anthophora (Pyganthophora) lesquerellae Cockerell, 1896 | |
| Anthophora (Pyganthophora) porphyrea Westrich, 1993 | |
| Anthophora (Uncertain) purpuraria Westrich, 1993 | |
| Anthophora anasazi | |
| Anthophora biciliata Lepeletier, 1841 | |
| Anthophora boharti Brooks, 1988 | |
| Anthophora carbonaria Morawitz, 1876 | |
| Anthophora catalinae Cockerell, 1901 | |
| Anthophora cinereus (Friese, 1896) | ⇒ Anthophora cincreus Friese, 1896 |
| Anthophora cinerula | |
| Anthophora compactula | |
| Anthophora corvicolor Cockerell, 1905 | |
| Anthophora erythrothorax Michener, 1936 | |
| Anthophora estebana Cockerell, 1923 | |
| Anthophora flexipes Cresson, 1879 | |
| Anthophora gohrmanae Cockerell, 1903 | |
| Anthophora ignava Cresson, 1879 | |
| Anthophora lieftinctki Tkalcu, 1994 | |
| Anthophora melfordi ♰ T. D. A. Coc..., 1908 | |
| Anthophora morrisoni Cresson, 1879 | |
| Anthophora mucida (Gribodo, 1873) | ⇒ Habropoda cressoni Dalla Torre, 1896 |
| Anthophora nubiterrae Viereck, 1903 | |
| Anthophora pachyodonta Cockerell, 1923 | |
| Anthophora perezi Morawitz, 1895 | Reddell stygobromid |
| Anthophora pernigra Cresson, 1879 | |
| Anthophora platti Timberlake, 1951 | |
| Anthophora pueblo Orr, 2016 | |
| Anthophora pygmaea (Dours, 1869) | ⇒ Ancyloscelis apiformis Fabricius, 1793 |
| Anthophora raui Rohwer, 1923 | |
| Anthophora simillima Cresson, 1879 | |
| Anthophora smithii Dours, 1869 | |
| Anthophora sodalis Cresson, 1879 | |
| Anthophora stanfordiana Cockerell, 1904 | |
| Anthophora striata Orr, 2018 | |
| Anthophora timberlakei Orr, 2018 | |
| Anthophora vannigera Timberlake, 1951 | |
| Anthophora villosula (Smith, 1854) | ⇒ Colletes hederae Schmidt & We..., 1993 |
| Anthophorula (Anthophorisca) chionura Cockerell, 1925 | |
| Anthophorula (Anthophorisca) consobrina Timberlake, 1980 | |
| Anthophorula (Anthophorisca) micheneri Timberlake, 1947 | |
| Anthophorula (Anthophorisca) morgani Cockerell, 1914 | |
| Anthophorula (Anthophorisca) nitens Cockerell, 1915 | |
| Anthophorula (Anthophorisca) parva Timberlake, 1980 | |
| Anthophorula (Anthophorisca) pygmaea Cresson, 1872 | |
| Anthophorula (Anthophorisca) sidae Cockerell, 1897 | |
| Anthophorula (Anthophorisca) texana Friese, 1899 | |
| Anthophorula (Anthophorula) albata Timberlake, 1947 | |
| Anthophorula (Anthophorula) albicans Provancher, 1896 | |
| Anthophorula (Anthophorula) albovestita Timberlake, 1947 | |
| Anthophorula (Anthophorula) cerei Timberlake, 1947 | |
| Anthophorula (Anthophorula) compactula Cockerell, 1897 | |
| Anthophorula (Anthophorula) completa Cockerell, 1935 | |
| Anthophorula (Anthophorula) deserticola Timberlake, 1947 | |
| Anthophorula (Anthophorula) eriogoni Timberlake, 1947 | |
| Anthophorula (Anthophorula) euphorbiae Timberlake, 1947 | |
| Anthophorula (Anthophorula) gutierreziae Timberlake, 1947 | |
| Anthophorula (Anthophorula) interrupta Timberlake, 1980 | |
| Anthophorula (Anthophorula) rufiventris Timberlake, 1947 | |
| Anthophorula (Anthophorula) torticornis Cockerell, 1927 | |
| Anthophorula asteris Mitchell, 1962 | |
| Anthophorula beameri Timberlake, 1980 | |
| Anthophorula chlorina Cockerell, 1918 | |
| Anthophorula cornigera Cockerell, 1922 | |
| Anthophorula crenulata Timberlake, 1980 | |
| Anthophorula ignota Timberlake, 1980 | |
| Anthophorula imparilis Timberlake, 1980 | |
| Anthophorula morula Timberlake, 1980 | |
| Anthophorula nevadensis Timberlake, 1980 | |
| Anthophorula palmarum Timberlake, 1947 | |
| Anthophorula rozeni Timberlake, 1980 | |
| Anthophorula scapalis Timberlake, 1980 | |
| Anthophorula tricinctula Timberlake, 1980 | |
| Anthophorula varleyi Timberlake, 1947 | |
| Apathus ashtoni Cresson, 1864 | |
| Apathus californicus Cresson, 1879 | |
| Apathus contiguus Cresson, 1863 | |
| Apathus variabilis Cresson, 1872 | |
| Apis (Apis) cerana Fabricius, 1793 | Asian honey bee |
| Apis (Apis) mellifera Linnaeus, 1758 | Drone-Bee |
| Apis (Cascapis) nearctica ♰ Engel, Hinoj..., 2009 | |
| Apis myscelus Harris, 1776 | |
| Axestotrigona ferruginea Lepeletier, 1836 | |
| Bombomelecta arizonica Cockerell, 1902 | |
| Bombomelecta azygos Viereck, 1903 | |
| Bombomelecta larreae Cockerell, 1900 | |
| Bombomelecta zygos Viereck, 1903 | |
| Bombus (Agrobombus) pascuorum Vogt, 1909 | |
| Bombus (Alpigenobombus) breviceps Smith, 1852 | |
| Bombus (Alpigenobombus) nobilis Friese, 1905 | |
| Bombus (Alpigenobombus) wurflenii Radoszkowski, 1860 | |
| Bombus (Alpinobombus) balteatus Dahlbom, 1832 | Baltic bumblebee |
| Bombus (Alpinobombus) hyperboreus Schönherr, 1809 | Great arctic bumblebee |
| Bombus (Alpinobombus) neoboreus (Sladen, 1919) | ⇒ Bombus strenuus Cresson, 1863 |
| Bombus (Alpinobombus) polaris Curtis, 1835 | Polar Bumble Bee |
| Bombus (Bombias) auricomus Robertson, 1903 | Black and gold bumble bee |
| Bombus (Bombias) mormonorum Franklin, 1911 | |
| Bombus (Bombias) nevadensis (Cockerell, 1937) | ⇒ Bombus auricomus Robertson, 1903 |
| Bombus nevadensis nevadensis | |
| Bombus (Bombus) affinis Cresson, 1863 | Rusty patch bumble bee |
| Bombus (Bombus) cryptarum Fabricius, 1775 | Cryptic Bumble Bee |
| Bombus (Bombus) franklini Frison, 1921 | Franklin bumble bee |
| Bombus (Bombus) hypocrita Perez, 1905 | |
| Bombus (Bombus) lantschouensis Vogt, 1908 | |
| Bombus (Bombus) longipennis Friese, 1918 | |
| Bombus (Bombus) lucorum (Linnaeus, 1761) | ⇒ Bombus lantschouensis Vogt, 1908 |
| Bombus lucorum lucorum Linnaeus, 1761 | |
| Bombus lucorum moderatus | |
| Bombus (Bombus) magnus Vogt, 1911 | Northern White-tail |
| Bombus (Bombus) medius Cresson, 1863 | |
| Bombus (Bombus) moderatus Cresson, 1863 | |
| Bombus (Bombus) nevadensis Cresson, 1874 | Nevada bumble bee |
| Bombus (Bombus) occidentalis (Greene, 1858) | ⇒ Bombus terricola Kirby, 1837 |
| Bombus (Bombus) patagiatus (Nylander, 1848) | ⇒ Bombus minshanensis Bischoff, 1936 |
| Bombus (Bombus) terrestris (Linnaeus, 1758) | ⇒ Bombus longipennis Friese, 1918 |
| Bombus (Bombus) terricola Kirby, 1837 | Yellow-banded Bumble Bee |
| Bombus terricola occidentalis | Western Bumble Bee |
| Bombus (Bombus) weisi Fkln, 1915 | |
| Bombus (Crotchiibombus) crotchii Cresson, 1878 | Crotch bumble bee |
| Bombus (Cullumanobombus) crotchii Cresson, 1878 | Crotch´s Bumble Bee |
| Bombus (Cullumanobombus) fraternus Smith, 1854 | Southern plains bumble bee |
| Bombus (Cullumanobombus) griseocollis De Geer, 1773 | Brown-belted Bumble Bee |
| Bombus (Cullumanobombus) morrisoni Cresson, 1878 | Morrison bumble bee |
| Bombus (Cullumanobombus) rufocinctus Cresson, 1863 | Red-belted Bumble Bee |
| Bombus (Fernaldaepsithyrus) sylvestris Lepeletier, 1832 | |
| Bombus (Fervidobombus) atratus Franklin, 1913 | |
| Bombus (Fervidobombus) californicus (Smith, 1854) | ⇒ Bombus fervidus Fabricius, 1798 |
| Bombus (Fervidobombus) dahlbomii Guérin-Ménev..., 1835 | |
| Bombus (Fervidobombus) excellens Smith, 1879 | Bunchberry dogwood |
| Bombus (Fervidobombus) fervidus Fabricius, 1798 | Golden Northern Bumble Bee |
| Bombus fervidus californicus | California Bumble Bee |
| Bombus fervidus fervidus | |
| Bombus (Fervidobombus) medius Cresson, 1863 | |
| Bombus (Fervidobombus) mexicanus Cresson, 1878 | |
| Bombus (Fervidobombus) morio Swederus, 1787 | |
| Bombus (Fervidobombus) pensylvanicus De Geer, 1773 | American bumble bee |
| Bombus pensylvanicus sonorus | Sonoran Bumble Bee |
| Bombus (Fervidobombus) sonorus (Say, 1837) | ⇒ Bombus pensylvanica De Geer, 1773 |
| Bombus (Fervidobombus) weisi Friese, 1903 | |
| Bombus (Fraternobombus) fraternus Smith, 1854 | Southern plains bumble bee |
| Bombus (Hortobombus) hortorum Tkalcu, 1960 | |
| Bombus (Hortobombus) ruderatus Tkalcu, 1961 | |
| Bombus (Kallobombus) soroeensis Fabricius, 1776 | Broken-belted Bumble Bee |
| Bombus (Lapidariobombus) lapidarius (Tkalcu, 1960) | ⇒ Bombus semenovianus Skorikov, 1914 |
| Bombus (Megabombus) argillaceus Scopoli, 1763 | |
| Bombus (Megabombus) diligens Smith, 1861 | Delicate tellin |
| Bombus (Megabombus) distinguendus Morawitz, 1869 | Great Yellow Bumble Bee |
| Bombus (Megabombus) hortorum Linnaeus, 1761 | Garden bumblebee |
| Bombus (Megabombus) irisanensis Cockerell, 1910 | |
| Bombus (Megabombus) opifex Smith, 1879 | Bunchberry dogwood |
| Bombus ruderatus eurynotus (Dalla Torre, 1882) | ⇒ Bombus ruderatus Fabricius, 1775 |
| Bombus (Megabombus) sylvarum Linnaeus, 1761 | Knapweed Carder Bee |
| Bombus (Melanobombus) lapidarius Linnaeus, 1758 | Large Red-tailed Bumble Bee |
| Bombus (Melanobombus) semenovianus Skorikov, 1914 | |
| Bombus (Melanobombus) simillimus Smith, 1852 | |
| Bombus (Mucidobombus) mucidus Gerstäcker, 1869 | |
| Bombus (Orientalibombus) braccatus Friese, 1905 | |
| Bombus (Psithyrus) ashtoni Cresson, 1864 | Ashton cuckoo bumble bee |
| Bombus (Psithyrus) barbutellus Kirby, 1802 | Barbut's Cuckoo Bee |
| Bombus (Psithyrus) bohemicus Seidl, 1837 | Ashton's Cuckoo Bumblebee |
| Bombus (Psithyrus) campestris Panzer, 1801 | Field Cuckoo Bee |
| Bombus (Psithyrus) citrinus Smith, 1854 | Lemon cuckoo bumble bee |
| Bombus (Psithyrus) fernaldae (Franklin, 1911) | ⇒ Bombus flavidus Eversmann, 1852 |
| Bombus (Psithyrus) flavidus Eversmann, 1852 | Fernald Cuckoo Bumble Bee |
| Bombus (Psithyrus) insularis (Smith, 1861) | ⇒ Bombus hypnorum Linnaeus, 1758 |
| Bombus (Psithyrus) norvegicus Sparre-Schne..., 1918 | Norwegian cuckoo bumblebee |
| Bombus (Psithyrus) suckleyi Greene, 1860 | Suckley Cuckoo Bumble Bee |
| Bombus (Psithyrus) sylvestris Lepeletier, 1832 | Forest Cuckoo Bee |
| Bombus (Psithyrus) variabilis (Cresson, 1872) | ⇒ Bombus humilis Illiger, 1806 |
| Bombus (Pyrobombus) bifarius Cresson, 1878 | Black-notched Bumble Bee |
| Bombus bifarius bifarius | |
| Bombus bifarius nearcticus | |
| Bombus (Pyrobombus) bimaculatus Cresson, 1863 | Two-spotted Bumble Bee |
| Bombus (Pyrobombus) caliginosus Frison, 1927 | Fog-belt Bumble Bee |
| Bombus (Pyrobombus) centralis Cresson, 1864 | Central bumble bee |
| Bombus (Pyrobombus) cockerelli Franklin, 1913 | Cockerell's bumble bee |
| Bombus (Pyrobombus) ephippiatus Say, 1837 | Vegetable hummingbird |
| Bombus (Pyrobombus) flavifrons Cresson, 1863 | Yellow head bumble bee |
| Bombus (Pyrobombus) frigidus Smith, 1854 | Frigid Bumble Bee |
| Bombus (Pyrobombus) huntii Greene, 1860 | Hunt bumble bee |
| Bombus (Pyrobombus) hypnorum Linnaeus, 1758 | New garden bumblebee |
| Bombus (Pyrobombus) impatiens Cresson, 1863 | Common eastern bumble bee |
| Bombus (Pyrobombus) jonellus Kirby, 1802 | Heath Bumble Bee |
| Bombus (Pyrobombus) lapidarius Linnaeus, 1758 | Large Red-tailed Bumble Bee |
| Bombus (Pyrobombus) lapponicus (Fabricius, 1793) | ⇒ Bombus monticola Smith, 1849 |
| Bombus (Pyrobombus) lepidus Skorikov, 1912 | |
| Bombus (Pyrobombus) melanopygus Nylander, 1848 | Black tail bumble bee |
| Bombus melanopygus edwardsii | |
| Bombus (Pyrobombus) mixtus Cresson, 1878 | Fuzzy-horned bumble bee |
| Bombus (Pyrobombus) monticola Smith, 1849 | Bilberry Blaeberry Bumblebee |
| Bombus (Pyrobombus) perplexus (Cresson, 1863) | ⇒ Bombus soroeensis Fabricius, 1776 |
| Bombus (Pyrobombus) pratorum Illiger, 1806 | Apple Bumblebee |
| Bombus (Pyrobombus) rotundiceps Friese, 1916 | |
| Bombus (Pyrobombus) sandersoni Franklin, 1913 | Sanderson bumble bee |
| Bombus (Pyrobombus) sitkensis Nylander, 1848 | Sitka bumble bee |
| Bombus (Pyrobombus) sylvicola Kirby, 1837 | Forest bumble bee |
| Bombus (Pyrobombus) ternarius Say, 1837 | Orange-belted Bumble Bee |
| Bombus (Pyrobombus) vagans Smith, 1854 | Half-black bumble bee |
| Bombus vagans sandersoni (Franklin, 1913) | ⇒ Bombus sandersoni Franklin, 1913 |
| Bombus vagans vagans Smith, 1854 | |
| Bombus (Pyrobombus) vandykei Frison, 1927 | Van Dyke bumble bee |
| Bombus (Pyrobombus) vosnesenskii Radoszkowski, 1862 | Vosnesensky bumble bee |
| Bombus (Separatobombus) griseocollis (DeGeer, 1773) | ⇒ Bombus griseocollis De Geer, 1773 |
| Bombus (Separatobombus) morrisoni (Cresson, 1878) | ⇒ Bombus morrisoni Cresson, 1878 |
| Bombus (Subterraneobombus) appositus Cresson, 1878 | Mountain Bumble Bee |
| Bombus (Subterraneobombus) borealis Kirby, 1837 | Northern amber bumble bee |
| Bombus (Subterraneobombus) distinguendus Morawitz, 1869 | Great Yellow Bumble Bee |
| Bombus (Subterraneobombus) subterraneus ♰ Linnaeus, 1758 | Short-haired Bumble Bee |
| Bombus (Thoracobombus) bellicosus Smith, 1879 | Bunchberry dogwood |
| Bombus (Thoracobombus) humilis Illiger, 1806 | Brown-banded carder bee |
| Bombus (Thoracobombus) imitator Pittioni, 1949 | |
| Bombus (Thoracobombus) muscorum Linnaeus, 1758 | Large carder bee |
| Bombus (Thoracobombus) pascuorum Scopoli, 1763 | Common carder bee |
| Bombus (Thoracobombus) ruderarius (Müller, 1776) | ⇒ Bombus ruderarius Müller, 1776 |
| Bombus (Thoracombus) ruderarius Müller, 1776 | |
| Bombus alaskensis (Ashmead, 1902) | ⇒ Bombus flavifrons Cresson, 1863 |
| Bombus consimilis (Cresson, 1864) | ⇒ Bombus vagans Smith, 1854 |
| Bombus dimidiatus (Ashmead, 1902) | ⇒ Bombus flavifrons Cresson, 1863 |
| Bombus dubius Cresson, 1863 | |
| Bombus edwardsii (Nylander, 1848) | ⇒ Bombus melanopygus Nylander, 1848 |
| Bombus fervidas | Golden Northern Bumble Bee |
| Bombus gelidus (Cresson, 1878) | ⇒ Bombus sylvicola Kirby, 1837 |
| Bombus howardi Cresson, 1863 | |
| Bombus improbus (Cresson, 1878) | ⇒ Bombus nevadensis Cresson, 1874 |
| Bombus intrudens Smith, 1861 | |
| Bombus iridis (Cockerell & ..., 1899) | ⇒ Bombus rufocinctus Cresson, 1863 |
| Bombus juxtus (Cresson, 1878) | ⇒ Bombus centralis Cresson, 1864 |
| Bombus kincaidii Cockerell, 1898 | |
| Bombus kirbiellus (Curtis, 1835) | ⇒ Bombus balteatus Dahlbom, 1832 |
| Bombus kluanensis Williams & C..., 2016 | |
| Bombus mckayi Ashmead, 1902 | |
| Bombus mixtuosus (Ashmead, 1902) | ⇒ Bombus sitkensis Nylander, 1848 |
| Bombus monardae (Cockerell & ..., 1899) | ⇒ Bombus centralis Cresson, 1864 |
| Bombus natvigi (Richards, 1931) | ⇒ Bombus hyperboreus Schönherr, 1809 |
| Bombus nigrocinctus (Provancher, 1888) | ⇒ Bombus crotchii Cresson, 1878 |
| Bombus oregonensis (Cresson, 1878) | ⇒ Bombus sitkensis Nylander, 1848 |
| Bombus pallidus (Cresson, 1863) | ⇒ Bombus pensylvanica De Geer, 1773 |
| Bombus pauloensis Friese, 1912 | |
| Bombus pennsylvanicus (De Geer, 1773) | ⇒ Bombus pensylvanica De Geer, 1773 |
| Bombus pensylvanica De Geer, 1773 | |
| Bombus pleuralis Nylander, 1848 | |
| Bombus proavus ♰ T. D. A. Coc..., 1931 | |
| Bombus proximus (Cresson, 1863) | ⇒ Bombus terricola Kirby, 1837 |
| Bombus prunellae (Cockerell & ..., 1899) | ⇒ Bombus rufocinctus Cresson, 1863 |
| Bombus putnami (Cresson, 1878) | ⇒ Bombus balteatus Dahlbom, 1832 |
| Bombus ridingsii Cresson, 1879 | |
| Bombus rufosuffusus (Cockerell, 1905) | ⇒ Bombus huntii Greene, 1860 |
| Bombus sapporoensis Cockerell, 1911 | |
| Bombus scutellaris (Cresson, 1863) | ⇒ Bombus fraternus Smith, 1854 |
| Bombus separatus Cresson, 1863 | |
| Bombus sg | |
| Bombus strenuus Cresson, 1863 | |
| Bombus titusi Ashmead, 1902 | |
| Bombus vancouverensis (Cresson, 1878) | ⇒ Bombus bifarius Cresson, 1878 |
| Brachymelecta mucida Cresson, 1879 | |
| Brachynomada (Melanomada) annectens Snelling & R..., 1987 | |
| Brachynomada (Melanomada) grindeliae Cockerell, 1903 | |
| Brachynomada (Melanomada) melanantha Linsley, 1939 | |
| Brachynomada (Melanomada) nimia Snelling & R..., 1987 | |
| Brachynomada sidaefloris Cockerell, 1898 | |
| Braunsapis simillima Smith, 1854 | |
| Calyptapis florissantensis ♰ T. D. A. Coc..., 1906 | |
| Cemolobus ipomoeae Robertson, 1891 | |
| Centris (Centris) adani Cockerell, 1949 | |
| Centris (Centris) aethyctera Snelling, 1974 | |
| Centris (Centris) decolorata Lepeletier, 1841 | Crazy Beach Bee |
| Centris (Centris) errans Fox, 1899 | Wandering Centris |
| Centris (Centris) inermis (Friese, 1899) | ⇒ Centris varia Erichson, 1848 |
| Centris (Centris) meaculpa Snelling, 1984 | |
| Centris (Centris) smithii Cresson, 1879 | |
| Centris (Centris) varia Erichson, 1848 | |
| Centris (Centris) versicolor Fabricius, 1775 | |
| Centris (Hemisiella) lanipes Fabricius, 1775 | |
| Centris (Heterocentris) analis Fabricius, 1804 | Hairy cockle |
| Centris (Heterocentris) nitida Smith, 1874 | Arnold's dogwood |
| Centris (Heterocentris) transversa Perez, 1905 | |
| Centris (Heterocentris) trigonoides Lepeletier, 1841 | |
| Centris (Heterocentris) vittata Lepeletier, 1841 | |
| Centris (Malacentris) atriventris (Mocsáry, 1896) | ⇒ Centris atripes Mocsáry, 1899 |
| Centris (Paracentris) aterrima Smith, 1854 | |
| Centris (Paracentris) atripes Mocsáry, 1899 | |
| Centris (Paracentris) caesalpiniae Cockerell, 1897 | |
| Centris (Paracentris) californica Timberlake, 1940 | |
| Centris (Paracentris) cockerelli Fox, 1899 | |
| Centris cockerelli resoluta (Cockerell, 1923) | ⇒ Centris cockerelli Fox, 1899 |
| Centris (Paracentris) hoffmanseggiae Cockerell, 1897 | |
| Centris (Paracentris) lanosa Cresson, 1872 | |
| Centris (Paracentris) mexicana Smith, 1854 | |
| Centris (Paracentris) nigrocaerulea Smith, 1874 | Arnold's dogwood |
| Centris (Paracentris) pallida Fox, 1899 | Pallid Bee |
| Centris (Paracentris) rhodopus Cockerell, 1897 | Red-legged Centris |
| Centris (Paracentris) tiburonensis Cockerell, 1923 | |
| Centris (Paracentris) zacateca Snelling, 1966 | |
| Centris (Penthemisia) chilensis Spinola, 1851 | |
| Centris (Trachina) dentata Smith, 1854 | |
| Centris (Trachina) fuscata Lepeletier, 1841 | |
| Centris (Wagenknechtia) cineraria Smith, 1854 | |
| Centris dimidiata Olivier, 1789 | |
| Centris dirrhoda Moure, 1960 | |
| Centris eurypatana Snelling, 1984 | |
| Centris foxi Friese, 1901 | |
| Centris marginata Fox, 1899 | |
| Centris morsei Cockerell, 1897 | |
| Centris mourei Roig-Alsina, 2000 | |
| Centris rhodomelas Timberlake, 1940 | |
| Centris rhodophus | |
| Centris rhodoprocta Moure & Seabra, 1960 | |
| Centris subhyalina Fox, 1899 | |
| Centris xochipillii Snelling, 1984 | |
| Ceratina (Calloceratina) cobaltina Cresson, 1878 | Cobalt Ceratina |
| Ceratina (Ceratina) subquadrata Smith, 1854 | |
| Ceratina (Ceratinula) arizonensis Cockerell, 1898 | Arizona Ceratina |
| Ceratina (Ceratinula) cockerelli H. S. Smith, 1907 | Cockerell´s Ceratina |
| Ceratina (Ctenoceratina) rufigastra Cockerell, 1937 | Southern fire ant |
| Ceratina (Euceratina) callosa Fabricius, 1794 | |
| Ceratina (Euceratina) dallatorreana Friese, 1896 | Dalla Torre's small carpenter bee |
| Ceratina (Neoceratina) australensis Perkins, 1912 | |
| Ceratina (Neoceratina) dentipes Friese, 1914 | Central Kentucky cave amphipod |
| Ceratina (Pithitis) citriphila Cockerell, 1935 | |
| Ceratina (Pithitis) smaragdula Fabricius, 1787 | Small carpenter bee |
| Ceratina (Zadontomerus) acantha Provancher, 1895 | Prickly Ceratina |
| Ceratina (Zadontomerus) apacheorum Daly, 1973 | |
| Ceratina (Zadontomerus) calcarata Robertson, 1900 | Spurred Carpenter Bee |
| Ceratina (Zadontomerus) diodonta H. S. Smith, 1907 | |
| Ceratina (Zadontomerus) dupla (Say, 1837) | ⇒ Ceratina floridana Mitchell, 1962 |
| Ceratina (Zadontomerus) floridana Mitchell, 1962 | Florida Ceratina |
| Ceratina (Zadontomerus) melanoptera Cockerell, 1924 | |
| Ceratina (Zadontomerus) micheneri Daly, 1973 | |
| Ceratina (Zadontomerus) nanula Cockerell, 1897 | Dwarf Ceratina |
| Ceratina (Zadontomerus) nautlana Cockerell, 1897 | |
| Ceratina (Zadontomerus) neomexicana Cockerell, 1901 | |
| Ceratina (Zadontomerus) pacifica H. S. Smith, 1907 | |
| Ceratina (Zadontomerus) punctigena van der Vecht, 1952 | |
| Ceratina (Zadontomerus) sequoiae Michener, 1936 | |
| Ceratina (Zadontomerus) shinnersi Daly, 1973 | |
| Ceratina (Zadontomerus) strenua Smith, 1879 | Bunchberry dogwood |
| Ceratina (Zadontomerus) texana Daly, 1973 | |
| Ceratina (Zadontomerus) timberlakei Daly, 1973 | |
| Ceratina disrupta ♰ T. D. A. Coc..., 1906 | |
| Ceratina electron Cockerell, 1937 | |
| Ceratina hurdi Daly, 1973 | |
| Ceratina metaria Cockerell, 1920 | |
| Ceratina mikmaqi Rehan & Shef..., 2011 | Mikmaq Little Carpenter Bee |
| Ceratina submaritima | |
| Ceratina tejonensis Cresson, 1864 | |
| Ceratina townsendi | |
| Ceratina umtalica (Cockerell, 1937) | ⇒ Ceratina rufigastra Cockerell, 1937 |
| Coquillettapis melittoides Viereck, 1909 | |
| Cretotrigona prisca ♰ C. D. Michener, 1988 | |
| Dasiapis ochracea Cockerell, 1903 | |
| Diadasia (Coquillettapis) afflicta Cresson, 1878 | |
| Diadasia afflicta perafflicta (Cockerell, 1905) | ⇒ Diadasia afflicta Cresson, 1878 |
| Diadasia (Coquillettapis) afflictula Cockerell, 1910 | |
| Diadasia (Coquillettapis) angusticeps Timberlake, 1939 | |
| Diadasia (Coquillettapis) australis Cresson, 1878 | |
| Diadasia australis australis Cresson, 1878 | |
| Diadasia australis californica (Cresson, 1878) | ⇒ Diadasia australis Cresson, 1878 |
| Diadasia (Coquillettapis) bituberculata Cresson, 1878 | |
| Diadasia (Coquillettapis) consociata Timberlake, 1939 | |
| Diadasia (Coquillettapis) diminuta Cresson, 1878 | |
| Diadasia (Coquillettapis) laticauda Cockerell, 1905 | |
| Diadasia (Coquillettapis) lutzi Cockerell, 1924 | |
| Diadasia (Coquillettapis) martialis Timberlake, 1940 | |
| Diadasia (Coquillettapis) megamorpha Cockerell, 1898 | |
| Diadasia (Coquillettapis) nigrifrons Cresson, 1878 | |
| Diadasia (Coquillettapis) nitidifrons Cockerell, 1905 | |
| Diadasia (Coquillettapis) opuntiae Cockerell, 1901 | |
| Diadasia (Coquillettapis) palmarum Timberlake, 1940 | |
| Diadasia (Coquillettapis) piercei Cockerell, 1911 | |
| Diadasia (Coquillettapis) rinconis Cockerell, 1897 | |
| Diadasia rinconis rinconis Cockerell, 1897 | |
| Diadasia (Coquillettapis) sphaeralcearum Cockerell, 1905 | |
| Diadasia sphaeralcearum affinis (Timberlake, 1939) | ⇒ Diadasia sphaeralcearum Cockerell, 1905 |
| Diadasia (Coquillettapis) tuberculifrons Timberlake, 1939 | |
| Diadasia (Coquillettapis) vallicola Timberlake, 1940 | |
| Diadasia (Dasiapis) chilensis Spinola, 1851 | |
| Diadasia (Dasiapis) ochracea Cockerell, 1903 | Ochraceous Chimney Bee |
| Diadasia (Dasiapis) olivacea Cresson, 1878 | |
| Diadasia (Dasiapis) tropicalis Cockerell, 1918 | |
| Diadasia (Diadasia) enavata Cresson, 1872 | Sunflower Chimney Bee |
| Diadasia friesei Cockerell, 1898 | |
| Doeringiella concava | |
| Elaphropoda bembidion Lieftinck, 1966 | Cascade cave amphipod |
| Emphoropsis interspersa Cockerell, 1905 | |
| Emphoropsis rugosissima Cockerell, 1905 | |
| Epeoloides pilosula (Cresson, 1878) | ⇒ Epeoloides pilosulus Cresson, 1878 |
| Epeoloides pilosulus Cresson, 1878 | |
| Epeolus agnatus | |
| Epeolus ainsliei Crawford, 1932 | |
| Epeolus alatus Friese, 1922 | Malheur Cave amphipod |
| Epeolus amabilis Gerstäcker, 1869 | |
| Epeolus americanus Cresson, 1878 | |
| Epeolus andriyi Onuferko, 2018 | |
| Epeolus argyreus | |
| Epeolus asperatus Cockerell, 1909 | |
| Epeolus attenboroughi Onuferko, 2018 | |
| Epeolus australis Mitchell, 1962 | |
| Epeolus autumnalis Robertson, 1902 | Autumnal Cellophane-Cuckoo |
| Epeolus axillaris Onuferko, 2018 | |
| Epeolus barberiellus Cockerell, 1907 | |
| Epeolus basili Onuferko, 2018 | |
| Epeolus beulahensis Cockerell, 1904 | |
| Epeolus bifasciatus Cresson, 1864 | Two-Banded Cellophane-Cuckoo |
| Epeolus bifasciatus bifasciatus (Cresson, 1864) | ⇒ Epeolus bifasciatus Cresson, 1864 |
| Epeolus bihamatus | |
| Epeolus brumleyi Onuferko, 2018 | |
| Epeolus californicus | |
| Epeolus canadensis Mitchell, 1962 | Canadian Cellophane-Cuckoo Bee |
| Epeolus carolinus Mitchell, 1962 | |
| Epeolus chamaesarachae Onuferko, 2018 | |
| Epeolus compactus Cresson, 1878 | |
| Epeolus crucis Cockerell, 1904 | |
| Epeolus dakotensis | |
| Epeolus deyrupi Onuferko, 2018 | |
| Epeolus diadematus Onuferko, 2018 | |
| Epeolus erigeronis Mitchell, 1962 | |
| Epeolus ferrarii Onuferko, 2018 | |
| Epeolus flavofasciatus Smith, 1879 | Bunchberry dogwood |
| Epeolus floridensis Mitchell, 1962 | |
| Epeolus gabrielis Cockerell, 1909 | |
| Epeolus glabratus Cresson, 1878 | |
| Epeolus hitei Cockerell, 1908 | |
| Epeolus howardi Mitchell, 1962 | |
| Epeolus humillimus Cockerell, 1918 | |
| Epeolus ilicis Mitchell, 1962 | |
| Epeolus inornatus Onuferko, 2018 | |
| Epeolus interruptus Robertson, 1900 | |
| Epeolus lanhami Mitchell, 1962 | |
| Epeolus lectiformis (Cockerell, 1925) | ⇒ Triepeolus lectiformis Cockerell, 1925 |
| Epeolus lectoides Robertson, 1901 | Knotted clover |
| Epeolus lectus Cresson, 1878 | |
| Epeolus lutzi Cockerell, 1921 | |
| Epeolus mercatus Fabricius, 1804 | Aleutian macoma |
| Epeolus mesillae Cockerell, 1895 | |
| Epeolus mesillae palmarum (Linsley, 1939) | ⇒ Epeolus mesillae Cockerell, 1895 |
| Epeolus minimus Robertson, 1902 | Least Cellophane-Cuckoo Bee |
| Epeolus natalensis Smith, 1879 | Bunchberry dogwood |
| Epeolus nebulosus Onuferko, 2018 | |
| Epeolus nevadensis | |
| Epeolus novomexicanus Cockerell, 1912 | |
| Epeolus occidentalis | |
| Epeolus olympiellus Cockerell, 1904 | |
| Epeolus oswegoensis (Mitchell, 1962) | ⇒ Triepeolus pectoralis Robertson, 1897 |
| Epeolus packeri Onuferko, 2018 | |
| Epeolus pusillus Cresson, 1864 | Dwarf Cellophane-Cuckoo Bee |
| Epeolus roseatus (Cockerell, 1937) | ⇒ Epeolus rufothoracicus Bischoff, 1923 |
| Epeolus rufothoracicus Bischoff, 1923 | |
| Epeolus rufulus Cockerell, 1941 | |
| Epeolus scelestus (Cresson, 1878) | ⇒ Triepeolus scelestus Cresson, 1878 |
| Epeolus scopulus | |
| Epeolus scutellaris Say, 1824 | Notch-Backed Cellophane-Cuckoo Bee |
| Epeolus semilectus | |
| Epeolus siculus Giordani Soika, 1944 | |
| Epeolus splendidus Onuferko, 2018 | |
| Epeolus tessieris Onuferko, 2018 | |
| Epeolus texanus | |
| Epeolus verbesinae | |
| Epeolus vernalis Mitchell, 1962 | |
| Epeolus virginiensis | |
| Epeolus zonatus Smith, 1854 | |
| Epicharis analis Lepeletier, 1841 | |
| Epicharis maculata Smith, 1874 | Arnold's dogwood |
| Ericrocis arizonensis Baker, 1906 | |
| Ericrocis lata Cresson, 1878 | |
| Ericrocis melectoides Baker, 1906 | |
| Ericrocis pintada Snelling & Z..., 1984 | |
| Eucera (Eucera) longicornis Linnaeus, 1758 | Long-horned Bee |
| Eucera (Hetereucera) algira Brullé, 1840 | |
| Eucera (Synhalonia) actuosa Cresson, 1878 | |
| Eucera (Synhalonia) albescens Timberlake, 1969 | |
| Eucera (Synhalonia) amsinckiae Timberlake, 1969 | |
| Eucera (Synhalonia) angustifrons Timberlake, 1969 | |
| Eucera (Synhalonia) aragalli Cockerell, 1904 | |
| Eucera (Synhalonia) atriventris Smith, 1854 | |
| Eucera (Synhalonia) belfragei Cresson, 1872 | |
| Eucera (Synhalonia) birkmanniella Cockerell, 1906 | |
| Eucera californica deserticola Timberlake, 1969 | |
| Eucera (Synhalonia) chrysophila Cockerell, 1914 | |
| Eucera (Synhalonia) cordleyi Viereck, 1905 | |
| Eucera (Synhalonia) dorsata Timberlake, 1969 | |
| Eucera (Synhalonia) dubitata Cresson, 1878 | |
| Eucera (Synhalonia) edwardsii Cresson, 1878 | |
| Eucera (Synhalonia) frater Cresson, 1878 | Monk Longhorn Bee |
| Eucera frater albopilosa Fowler, 1899 | |
| Eucera frater frater Cresson, 1878 | |
| Eucera frater lata Provancher, 1888 | Monk Longhorn Bee |
| Eucera (Synhalonia) fulvitarsis Cresson, 1878 | |
| Eucera fulvitarsis annae Cockerell, 1906 | |
| Eucera fulvitarsis fulvitarsis Cresson, 1878 | |
| Eucera (Synhalonia) fulvohirta Cresson, 1878 | |
| Eucera (Synhalonia) hamata Bradley, 1942 | |
| Eucera (Synhalonia) hurdi Timberlake, 1969 | |
| Eucera (Synhalonia) lepida Cresson, 1878 | |
| Eucera (Synhalonia) lunata Timberlake, 1969 | |
| Eucera (Synhalonia) lycii Cockerell, 1897 | |
| Eucera (Synhalonia) mohavensis Timberlake, 1969 | |
| Eucera (Synhalonia) quadricincta Timberlake, 1969 | |
| Eucera (Synhalonia) rosae Robertson, 1900 | |
| Eucera (Synhalonia) speciosa Cresson, 1878 | |
| Eucera (Synhalonia) truttae Cockerell, 1905 | |
| Eucera acerba Cresson, 1879 | |
| Eucera amoena (Zavortink, 1982) | ⇒ Tetralonia amoena Walker, 1871 |
| Eucera argyrophila Cockerell, 1909 | |
| Eucera atrata Klug, 1845 | |
| Eucera bakeri Timberlake, 1973 | |
| Eucera cercidis Timberlake, 1969 | |
| Eucera chrysobotryae Cockerell, 1908 | |
| Eucera conformis Timberlake, 1969 | |
| Eucera delphinii Timberlake, 1969 | |
| Eucera distincta Lepeletier, 1841 | |
| Eucera illinoensis Robertson, 1902 | |
| Eucera lutziana Cockerell, 1933 | |
| Eucera pallidihirta Timberlake, 1969 | |
| Eucera phaceliae Cockerell, 1911 | |
| Eucera pomona Nurse, 1904 | |
| Eucera primiveris Timberlake, 1969 | |
| Eucera stretchii Cresson, 1878 | |
| Eucera territella Cockerell, 1909 | |
| Eucera texana Timberlake, 1969 | |
| Eucera tricinctella Timberlake, 1969 | |
| Eucera venusta Timberlake, 1961 | |
| Eucera virgata Cockerell, 1905 | |
| Eucera zonata Timberlake, 1969 | |
| Eufriesea chrysopyga Mocsáry, 1898 | |
| Eufriesea fallax Smith, 1854 | |
| Eufriesea macroglossa Moure, 1965 | |
| Euglossa (Euglossa) championi Cheesman, 1929 | |
| Euglossa (Euglossa) deceptrix Moure, 1968 | |
| Euglossa (Euglossa) hemichlora (Cockerell, 1917) | ⇒ Euglossa erythrochlora Moure, 1968 |
| Euglossa (Euglossa) jamaicensis Moure, 1968 | |
| Euglossa (Euglossa) purpurea Friese, 1899 | |
| Euglossa (Euglossa) variabilis (Friese, 1899) | ⇒ Euglossa purpurea Friese, 1899 |
| Euglossa (Euglossa) villosiventris Moure, 1968 | |
| Euglossa (Euglossa) viridissima Friese, 1899 | Polished Warrior Euglossa |
| Euglossa (Glossura) flammea Moure, 1969 | Alabama well amphipod |
| Euglossa (Glossura) ignita Smith, 1874 | Arnold's dogwood |
| Euglossa (Glossura) imperialis Cockerell, 1922 | |
| Euglossa (Glossurella) bursigera Moure, 1970 | |
| Euglossa (Glossurella) crassipunctata Moure, 1968 | |
| Euglossa (Glossurella) gorgonensis Cheesman, 1929 | |
| Euglossa (Glossurella) oleolucens Dressler, 1978 | |
| Euglossa (Glossurella) sapphirina Moure, 1968 | |
| Euglossa annectans Dressler, 1982 | |
| Euglossa dilemma Bembé & Eltz, 2011 | Dilemma orchid bee |
| Euglossa hyacinthina Dressler, 1982 | |
| Euglossa ultima (Moure, 1968) | ⇒ Euglossa deceptrix Moure, 1968 |
| Euglossopteryx biesmeijeri ♰ De Meulemees..., 2014 | |
| Eulaema (Apeulaema) cingulata Fabricius, 1804 | Hairy cockle |
| Eulaema (Apeulaema) marcii Nemésio, 2009 | |
| Eulaema (Apeulaema) polychroma Mocsáry, 1899 | |
| Eulaema (Eulaema) bombiformis Packard, 1869 | |
| Eulaema (Eulaema) luteola Moure, 1967 | |
| Eulaema (Eulaema) meriana (Olivier, 1789) | ⇒ Eulaema terminata Smith, 1874 |
| Eulaema (Eulaema) seabrai (Moure, 1960) | ⇒ Eulaema bennetti Moure, 1967 |
| Eulaema (Eulaema) speciosa Mocsáry, 1897 | |
| Exaerete bilamellosa | |
| Exaerete frontalis Guérin-Ménev..., 1845 | |
| Exaerete smaragdina Guérin-Ménev..., 1845 | |
| Exomalopsis (Exomalopsis) analis Spinola, 1853 | |
| Exomalopsis (Exomalopsis) mellipes Cresson, 1878 | |
| Exomalopsis (Exomalopsis) otomita Cresson, 1878 | |
| Exomalopsis (Exomalopsis) similis Cresson, 1865 | Winged surfclam |
| Exomalopsis (Phanomalopsis) snowi Cockerell, 1906 | |
| Exomalopsis (Stilbomalopsis) birkmanni Cockerell, 1922 | |
| Exomalopsis (Stilbomalopsis) solani Cockerell, 1896 | Solanum Exomalopsis |
| Exomalopsis (Stilbomalopsis) solidaginis Cockerell, 1898 | |
| Exomalopsis albicans Provancher, 1896 | |
| Exomalopsis dimidiata Timberlake, 1980 | |
| Exomalopsis fumipennis Timberlake, 1980 | |
| Exomalopsis globosa (Fabricius, 1793) | ⇒ Exomalopsis similis Cresson, 1865 |
| Exomalopsis hurdi Timberlake, 1980 | |
| Exomalopsis nitens (Cockerell, 1915) | ⇒ Anthophorula nitens Cockerell, 1915 |
| Exomalopsis pubescens Cresson, 1865 | Winged surfclam |
| Exomalopsis tibialis Timberlake, 1980 | |
| Exomalopsis zexmeniae (Cockerell, 1912) | ⇒ Exomalopsis analis Spinola, 1853 |
| Exoneura (Exoneura) hamulata Cockerell, 1905 | |
| Exoneura (Inquilina) excavata Cockerell, 1922 | |
| Exoneura schwarzi Michener, 1983 | |
| Exoneurella lawsoni Rayment, 1946 | |
| Florilegus (Florilegus) condignus Cresson, 1878 | |
| Gaesischia (Gaesischia) exul Michener, La..., 1955 | |
| Gaesischia mexicana LaBerge, 1958 | |
| Gnathias perbella | |
| Habropoda cineraria Smith, 1879 | |
| Habropoda citula Cockerell, 1929 | |
| Habropoda cressoni Dalla Torre, 1896 | |
| Habropoda cressonii Dalla Torre, 1896 | |
| Habropoda dammersi Timberlake, 1937 | |
| Habropoda depressa Fowler, 1899 | |
| Habropoda excellens Timberlake, 1962 | |
| Habropoda laboriosa Fabricius, 1804 | Blueberry Habropoda |
| Habropoda miserabilis Cresson, 1878 | |
| Habropoda morrisoni Cresson, 1878 | |
| Habropoda pallida Timberlake, 1937 | Pallid Habropoda |
| Habropoda salviarum Cockerell, 1898 | |
| Habropoda semifulva Cockerell, 1905 | |
| Habropoda tristissima Cockerell, 1904 | |
| Habropoda vierecki Cockerell, 1909 | |
| Hesperonomada melanantha | |
| Hexepeolus mojavensis (Linsley & Mi..., 1937) | ⇒ Hexepeolus rhodogyne Linsley & Mi..., 1937 |
| Hexepeolus rhodogyne Linsley & Mi..., 1937 | |
| Holcopasites acanthochilus | |
| Holcopasites apacheorum Hurd & Linsley, 1972 | |
| Holcopasites arizonicus Linsley, 1942 | |
| Holcopasites calliopsidis Linsley, 1943 | Calliopsis Cuckoo Nomad Bee |
| Holcopasites calliopsidis calliopsidis Linsley, 1943 | |
| Holcopasites calliopsidis carinatus (Linsley, 1943) | ⇒ Holcopasites calliopsidis Linsley, 1943 |
| Holcopasites eamia Cockerell, 1909 | |
| Holcopasites haematurus Cockerell & ..., 1926 | |
| Holcopasites heliopsis Robertson, 1897 | |
| Holcopasites illinoiensis Robertson, 1891 | |
| Holcopasites illinoiensis illinoiensis (Robertson, 1891) | ⇒ Holcopasites illinoiensis Robertson, 1891 |
| Holcopasites insoletus Linsley, 1942 | |
| Holcopasites jerryrozeni Neff, 2004 | |
| Holcopasites minimus Linsley, 1943 | |
| Holcopasites pratti | |
| Holcopasites pseudocarinatus | |
| Holcopasites pulchellus Cresson, 1878 | |
| Holcopasites rozeni Hurd & Linsley, 1972 | |
| Holcopasites ruthae Cooper, 1993 | |
| Holcopasites stevensi Crawford, 1915 | |
| Holcopasites tegularis Hurd & Linsley, 1972 | |
| Holcopasites texanus | |
| Hypotrigona gribodoi Magretti, 1884 | |
| Leiopodus singularis Linsley & Mi..., 1937 | Singular Chimney-bee-cuckoo |
| Leurotrigona pusilla Moure & Camargo, 1987 | |
| Martinapis (Martinapis) luteicornis Cockerell, 1896 | Yellow-horned Morning Long-horned Bee |
| Martinapis (Martinapis) occidentalis Zavortink & ..., 1976 | Western Morning Long-horned Bee |
| Melanomada nimia (Snelling & R..., 1987) | ⇒ Brachynomada nimia Snelling & R..., 1987 |
| Melecta (Melecta) albifrons Forster, 1771 | Common Mourning Bee |
| Melecta (Melecta) caroli Lieftinck, 1958 | |
| Melecta (Melecta) fulgida Lieftinck, 1980 | |
| Melecta (Melecta) pacifica Cresson, 1878 | |
| Melecta pacifica atlantica Linsley, 1943 | |
| Melecta pacifica fulvida Cresson, 1878 | |
| Melecta pacifica pacifica Cresson, 1878 | |
| Melecta (Melecta) separata Cresson, 1879 | |
| Melecta separata arizonica Cockerell, 1902 | |
| Melecta separata callura Cockerell, 1926 | |
| Melecta separata johnsoni Cockerell, 1905 | |
| Melecta separata mojavensis Linsley, 1939 | |
| Melecta separata separata Cresson, 1879 | |
| Melecta (Melectomimus) edwardsii Cresson, 1878 | Edward´s Melecta |
| Melecta alexanderi Griswold & P..., 1999 | |
| Melecta bohartorum Linsley, 1939 | |
| Melecta californica (Cresson, 1878) | ⇒ Xeromelecta californica Cresson, 1878 |
| Melecta fulvida | |
| Melecta maculata Cresson, 1879 | |
| Melecta miranda Fox, 1893 | |
| Melecta mucida (Cresson, 1879) | ⇒ Brachymelecta mucida Cresson, 1879 |
| Melecta thoracica Cresson, 1875 | |
| Meliplebeia beccarii Gribodo, 1879 | |
| Melipona (Melikerria) beecheii Bennett, 1831 | |
| Melipona (Melipona) favosa Fabricius, 1798 | |
| Melipona (Melipona) quadrifasciata Lepeletier, 1836 | Stingless bee |
| Melipona (Michmelia) seminigra Friese, 1903 | |
| Melipona (Michmelia) solani Cockerell, 1912 | |
| Meliponula (Meliponula) bocandei Spinola, 1853 | |
| Melissodes (Apomelissodes) apicata Lovell & Coc..., 1906 | |
| Melissodes (Apomelissodes) fimbriata Cresson, 1878 | |
| Melissodes (Callimelissodes) ablusa Cockerell, 1926 | |
| Melissodes (Callimelissodes) coloradensis Cresson, 1878 | |
| Melissodes (Callimelissodes) composita Tucker, 1909 | |
| Melissodes (Callimelissodes) glenwoodensis Cockerell, 1905 | |
| Melissodes (Callimelissodes) lupina Cresson, 1878 | |
| Melissodes (Callimelissodes) lustra LaBerge, 1961 | |
| Melissodes (Callimelissodes) metenua Cockerell, 1924 | |
| Melissodes (Callimelissodes) nigracauda LaBerge, 1961 | |
| Melissodes (Callimelissodes) plumosa LaBerge, 1961 | |
| Melissodes (Callimelissodes) stearnsi Cockerell, 1905 | |
| Melissodes (Callimelissodes) tuckeri Cockerell, 1909 | |
| Melissodes (Ecplectica) trifasciata Cresson, 1878 | |
| Melissodes (Eumelissodes) agilis Cresson, 1878 | Agile Long-horned Bee |
| Melissodes (Eumelissodes) bicolorata LaBerge, 1961 | |
| Melissodes (Eumelissodes) bidentis Cockerell, 1914 | |
| Melissodes (Eumelissodes) bimatris LaBerge, 1961 | |
| Melissodes (Eumelissodes) boltoniae Robertson, 1905 | Subterranean clover |
| Melissodes (Eumelissodes) brevipyga LaBerge, 1961 | |
| Melissodes (Eumelissodes) confusa Cresson, 1878 | |
| Melissodes (Eumelissodes) coreopsis Robertson, 1905 | Subterranean clover |
| Melissodes (Eumelissodes) denticulata Smith, 1854 | |
| Melissodes (Eumelissodes) dentiventris Smith, 1854 | |
| Melissodes (Eumelissodes) druriella Kirby, 1802 | |
| Melissodes (Eumelissodes) elegans LaBerge, 1961 | |
| Melissodes (Eumelissodes) expolita LaBerge, 1961 | |
| Melissodes (Eumelissodes) fasciatella LaBerge, 1961 | |
| Melissodes (Eumelissodes) fumosa LaBerge, 1961 | |
| Melissodes (Eumelissodes) gelida LaBerge, 1961 | |
| Melissodes (Eumelissodes) grindeliae Cockerell, 1898 | |
| Melissodes (Eumelissodes) humilior Cockerell, 1903 | |
| Melissodes (Eumelissodes) hymenoxidis Cockerell, 1906 | |
| Melissodes (Eumelissodes) illata Lovell & Coc..., 1906 | |
| Melissodes (Eumelissodes) limbus LaBerge, 1961 | |
| Melissodes (Eumelissodes) lutulenta LaBerge, 1961 | |
| Melissodes (Eumelissodes) manipularis Smith, 1854 | |
| Melissodes (Eumelissodes) melanura Cockerell, 1916 | |
| Melissodes (Eumelissodes) menuachus Cresson, 1868 | |
| Melissodes (Eumelissodes) micheneri LaBerge, 1961 | |
| Melissodes (Eumelissodes) microsticta Cockerell, 1905 | |
| Melissodes (Eumelissodes) monoensis LaBerge, 1961 | |
| Melissodes (Eumelissodes) montana Cresson, 1878 | |
| Melissodes (Eumelissodes) moorei Cockerell, 1926 | |
| Melissodes (Eumelissodes) nivea Robertson, 1895 | |
| Melissodes (Eumelissodes) pallidisignata Cockerell, 1905 | |
| Melissodes (Eumelissodes) paulula LaBerge, 1961 | |
| Melissodes (Eumelissodes) perlusa Cockerell, 1925 | |
| Melissodes (Eumelissodes) persimilis Cockerell, 1949 | |
| Melissodes (Eumelissodes) personatella Cockerell, 1901 | |
| Melissodes (Eumelissodes) pullatella LaBerge, 1961 | |
| Melissodes (Eumelissodes) robustior Cockerell, 1915 | Robust Long-horned Bee |
| Melissodes (Eumelissodes) rufipes LaBerge, 1961 | |
| Melissodes (Eumelissodes) semilupina Cockerell, 1905 | |
| Melissodes (Eumelissodes) snowii Cresson, 1878 | |
| Melissodes (Eumelissodes) subagilis Cockerell, 1905 | |
| Melissodes (Eumelissodes) subillata LaBerge, 1961 | |
| Melissodes (Eumelissodes) submenuacha Cockerell, 1897 | |
| Melissodes (Eumelissodes) tincta LaBerge, 1961 | |
| Melissodes (Eumelissodes) trinodis Robertson, 1901 | Dark-Veined Longhorn |
| Melissodes (Eumelissodes) tristis Cockerell, 1894 | |
| Melissodes (Eumelissodes) utahensis LaBerge, 1961 | |
| Melissodes (Eumelissodes) velutina Cockerell, 1916 | |
| Melissodes (Eumelissodes) verbesinarum Cockerell, 1905 | |
| Melissodes (Eumelissodes) vernalis LaBerge, 1961 | |
| Melissodes (Eumelissodes) vernoniae Robertson, 1902 | |
| Melissodes (Eumelissodes) wheeleri Cockerell, 1906 | |
| Melissodes (Heliomelissodes) desponsa Smith, 1854 | Thistle Long-horned Bee |
| Melissodes (Heliomelissodes) rivalis Cresson, 1872 | |
| Melissodes (Melissodes) bimaculata Lepeletier, 1825 | Longhorn Bee |
| Melissodes bimaculata bimaculata Lepeletier, 1825 | |
| Melissodes bimaculata nulla LaBerge, 1956 | |
| Melissodes (Melissodes) blanda LaBerge, 1956 | |
| Melissodes (Melissodes) colliciata Cockerell, 1910 | |
| Melissodes (Melissodes) communis Cresson, 1878 | Common Long-horned Bee |
| Melissodes communis alopex Cockerell, 1928 | |
| Melissodes communis communis Cresson, 1878 | |
| Melissodes (Melissodes) comptoides Robertson, 1898 | Brown-winged Long-horned Bee |
| Melissodes (Melissodes) gilensis Cockerell, 1896 | |
| Melissodes gilensis gilensis Cockerell, 1896 | |
| Melissodes (Melissodes) maesta LaBerge, 1956 | |
| Melissodes (Melissodes) paroselae (Cockerell, 1905) | ⇒ Melissodes parosetae Cockerell, 1905 |
| Melissodes (Melissodes) tepaneca Cresson, 1878 | Tepanec Long-horned Bee |
| Melissodes (Melissodes) tepida Cresson, 1878 | |
| Melissodes tepida tepida Cresson, 1878 | |
| Melissodes tepida timberlakei Cockerell, 1926 | |
| Melissodes tepida yumensis LaBerge, 1956 | |
| Melissodes (Melissodes) tessellata LaBerge, 1956 | |
| Melissodes (Melissodes) thelypodii Cockerell, 1905 | |
| Melissodes thelypodii thelypodii Cockerell, 1905 | |
| Melissodes (Psilomelissodes) intorta Cresson, 1872 | |
| Melissodes (Tachymelissodes) dagosa Cockerell, 1909 | |
| Melissodes (Tachymelissodes) opuntiella Cockerell, 1911 | |
| Melissodes (Tachymelissodes) sphaeralceae Cockerell, 1896 | |
| Melissodes albata Cresson, 1872 | |
| Melissodes albocincta Cockerell, 1919 | |
| Melissodes apacha Cresson, 1879 | |
| Melissodes apicatus Lovell & Coc..., 1906 | Pickerelweed Long-Horned Bee |
| Melissodes appressa LaBerge, 1961 | |
| Melissodes aurigenia Cresson, 1879 | |
| Melissodes baileyi Cockerell, 1906 | |
| Melissodes belfragei Cresson, 1872 | |
| Melissodes bimaculatus Lepeletier, 1825 | Two-Spotted Long-Horned Bee |
| Melissodes bishoppi Cockerell, 1914 | |
| Melissodes blakei Cockerell, 1905 | |
| Melissodes brevicornis Cresson, 1872 | |
| Melissodes californica Cresson, 1879 | |
| Melissodes cerussata LaBerge, 1961 | |
| Melissodes chrysothamni Cockerell, 1905 | |
| Melissodes clarkiae LaBerge, 1961 | |
| Melissodes comata LaBerge, 1961 | |
| Melissodes densa Cresson, 1872 | |
| Melissodes denticulatus Smith, 1854 | Denticulate Long-Horned Bee |
| Melissodes desponsus Smith, 1854 | Thistle Long-Horned Bee |
| Melissodes dilecta Cresson, 1879 | |
| Melissodes druriellus Kirby, 1802 | Drury'S Long-Horned Bee |
| Melissodes edwardsii Cresson, 1879 | |
| Melissodes epicharis | |
| Melissodes excurrens Cockerell, 1903 | |
| Melissodes exilis LaBerge, 1961 | |
| Melissodes hexacantha Cockerell, 1905 | |
| Melissodes honesta Cresson, 1872 | |
| Melissodes hortivagans Cockerell, 1905 | |
| Melissodes hurdi LaBerge, 1961 | |
| Melissodes illatus Lovell & Coc..., 1906 | Valiant Long-Horned Bee |
| Melissodes lepida Cresson, 1879 | |
| Melissodes lustrus (LaBerge, 1961) | ⇒ Melissodes lustra LaBerge, 1961 |
| Melissodes mimica Cresson, 1869 | |
| Melissodes minuscula LaBerge, 1961 | |
| Melissodes mitchelli LaBerge, 1956 | |
| Melissodes nevadensis Cresson, 1874 | |
| Melissodes nigrosignata Cockerell, 1905 | |
| Melissodes ochraea LaBerge, 1961 | |
| Melissodes palustris Robertson, 1892 | |
| Melissodes parosetae Cockerell, 1905 | |
| Melissodes paucipuncta LaBerge, 1961 | |
| Melissodes pecosella Cockerell, 1905 | |
| Melissodes perplexa Cresson, 1879 | |
| Melissodes perpolita LaBerge, 1961 | |
| Melissodes pexa LaBerge, 1961 | |
| Melissodes pilleata LaBerge, 1961 | |
| Melissodes pimella Cockerell, 1906 | |
| Melissodes praelauta Cockerell, 1905 | |
| Melissodes pygmaea (Cresson, 1872) | ⇒ Anthophorula pygmaea Cresson, 1872 |
| Melissodes relucens LaBerge, 1961 | |
| Melissodes rustica (Say, 1837) | ⇒ Melissodes druriella Kirby, 1802 |
| Melissodes saponellus Cockerell, 1908 | |
| Melissodes semitristis Cockerell, 1905 | |
| Melissodes sila LaBerge, 1956 | |
| Melissodes sonorensis LaBerge, 1963 | |
| Melissodes strenua Cresson, 1879 | |
| Melissodes suavis Cresson, 1879 | |
| Melissodes subfragilis | |
| Melissodes subillatus LaBerge, 1961 | Vigorous Long-Horned Bee |
| Melissodes tenuitarsis Cockerell, 1905 | |
| Melissodes texana Cresson, 1872 | |
| Melissodes thurberiae Cockerell, 1914 | |
| Melissoptila tandilensis Holmberg, 1884 | Western stygobromid |
| Melitoma grisella Cockerell & ..., 1899 | |
| Melitoma marginella Cresson, 1872 | |
| Melitoma segmentaria Fabricius, 1804 | Hairy cockle |
| Melitoma taurea Say, 1837 | |
| Mesocheira bicolor Fabricius, 1804 | Hairy cockle |
| Mesoplia regalis Smith, 1854 | |
| Nannotrigona perilampoides Cresson, 1878 | |
| Neolarra abdominalis | |
| Neolarra alba Cockerell, 1916 | |
| Neolarra batrae Shanks, 1978 | |
| Neolarra californica Michener, 1939 | |
| Neolarra cockerelli Crawford, 1916 | |
| Neolarra congregata | |
| Neolarra hurdi Shanks, 1978 | |
| Neolarra linsleyi Michener, 1939 | |
| Neolarra orbiculata Shanks, 1978 | |
| Neolarra penicula Shanks, 1978 | |
| Neolarra pruinosa Ashmead, 1890 | |
| Neolarra rozeni Shanks, 1978 | |
| Neolarra ute Griswold & P..., 1999 | |
| Neolarra vandykei Michener, 1939 | |
| Neolarra verbesinae Cockerell, 1895 | |
| Neolarra vigilans Cockerell, 1895 | |
| Neopasites cressoni Crawford, 1916 | |
| Neopasites fulviventris Cresson, 1878 | |
| Neopasites mojavensis Linsley, 1943 | |
| Neopasites punctulatus | |
| Neopasites robertsoni | |
| Neopasites sierrae Linsley, 1943 | |
| Neopasites timberlakei Linsley, 1943 | |
| Nogueirapis mirandula Cockerell, 1917 | |
| Nomada (Centrias) erigeronis Robertson, 1897 | |
| Nomada (Gnathias) bella Cresson, 1863 | Belle Nomad Bee |
| Nomada bella bella Cresson, 1863 | |
| Nomada bella callura (Cockerell, 1911) | ⇒ Nomada bella Cresson, 1863 |
| Nomada (Nomada) annulata Smith, 1854 | |
| Nomada (Nomada) augustiana Mitchell, 1962 | |
| Nomada (Nomada) banksi Cockerell, 1907 | Banks' Nomad Bee |
| Nomada (Nomada) ceanothi Cockerell, 1907 | |
| Nomada (Nomada) denticulata Robertson, 1902 | Denticulate Nomad |
| Nomada (Nomada) fragariae Mitchell, 1962 | |
| Nomada (Nomada) gracilis Cresson, 1863 | Slender Cuckoo Nomad Bee |
| Nomada (Nomada) integerrima Dalla Torre, 1896 | |
| Nomada (Nomada) micheneri Schwarz & Gu..., 2004 | |
| Nomada (Nomada) parva Robertson, 1900 | Small Cuckoo Nomad Bee |
| Nomada (Nomada) sulphurata Smith, 1854 | |
| Nomada (Nomada) vicina Cresson, 1863 | Neighborly Nomad |
| Nomada vicina vicina Cresson, 1863 | |
| Nomada (Nomadita) placida Cresson, 1863 | |
| Nomada (Xanthidium) coquilletti Cockerell, 1903 | |
| Nomada accepta Cresson, 1878 | |
| Nomada adducta Cresson, 1878 | |
| Nomada adusta Smith, 1875 | |
| Nomada affabilis Cresson, 1878 | |
| Nomada affabilis affabilis Cresson, 1878 | |
| Nomada affabilis dallasensis (Cockerell, 1911) | ⇒ Nomada affabilis Cresson, 1878 |
| Nomada agynia Cockerell, 1905 | |
| Nomada albidemaculata Lozinski, 1922 | |
| Nomada alpha Cockerell, 1905 | |
| Nomada angelarum Cockerell, 1903 | |
| Nomada antennata Meade-Waldo, 1913 | |
| Nomada antonita | |
| Nomada aquilarum Cockerell, 1903 | |
| Nomada arenicola Swenk, 1913 | |
| Nomada argentata Herrich-Schä..., 1839 | Silver-sided nomad bee |
| Nomada argentea Schwarz, 1966 | |
| Nomada arizonica Cockerell, 1911 | |
| Nomada armatella Cockerell, 1903 | Armed Cuckoo Nomad Bee |
| Nomada articulata Smith, 1854 | Articulated Nomad |
| Nomada ashmeadi Cockerell, 1903 | |
| Nomada asteris Swenk, 1913 | |
| Nomada astori Cockerell, 1903 | |
| Nomada atrofrontata Cockerell, 1903 | |
| Nomada australis Mitchell, 1962 | Austral Cuckoo Nomad Bee |
| Nomada autumnalis Mitchell, 1962 | |
| Nomada avalonica Cockerell, 1938 | |
| Nomada azaleae Mitchell, 1962 | |
| Nomada belfragei Cresson, 1878 | |
| Nomada besseyi Swenk, 1913 | |
| Nomada bethunei Cockerell, 1903 | Bethune'S Cuckoo Nomad Bee |
| Nomada beulahensis Cockerell, 1903 | |
| Nomada bifasciata Olivier, 1811 | Dusky-horned nomad bee |
| Nomada bifurcata Cockerell, 1903 | |
| Nomada binotata Robertson, 1903 | |
| Nomada bisignata Say, 1824 | |
| Nomada bohartorum Moalif, 1988 | |
| Nomada californiae Cockerell, 1903 | |
| Nomada capillata Mitchell, 1962 | |
| Nomada capitalis Mitchell, 1962 | |
| Nomada carolinae | |
| Nomada castellana Dusmet y Alonso, 1913 | Castell's nomad bee |
| Nomada cincta Rossi, 1792 | |
| Nomada citrina Cresson, 1878 | |
| Nomada citrina citrina Cresson, 1878 | |
| Nomada citrina rufula (Cockerell, 1903) | ⇒ Nomada citrina Cresson, 1878 |
| Nomada civilis Cresson, 1878 | |
| Nomada civilis spokanensis (Cockerell, 1910) | ⇒ Nomada civilis Cresson, 1878 |
| Nomada clarkii Cresson, 1903 | |
| Nomada collinsiana Cockerell, 1905 | |
| Nomada coloradella Cockerell, 1905 | |
| Nomada coloradensis Cresson, 1903 | |
| Nomada colorata Mitchell, 1962 | |
| Nomada composita Mitchell, 1962 | Composite Cuckoo Nomad Bee |
| Nomada cordleyi Cresson, 1903 | |
| Nomada cornelliana | |
| Nomada coronata Perez, 1896 | |
| Nomada corvallisensis Cresson, 1903 | |
| Nomada costalis Brèthes, 1909 | |
| Nomada crassula | |
| Nomada crawfordi Cockerell, 1905 | |
| Nomada crawfordi crawfordi Cockerell, 1905 | |
| Nomada cressonii Morawitz, 1877 | Cresson'S Nomad |
| Nomada cressonii cressonii Robertson, 1893 | |
| Nomada cressonii trevoriana Viereck, 1905 | |
| Nomada crotchii Cresson, 1878 | |
| Nomada crotchii crotchii Cresson, 1878 | |
| Nomada crotchii nigrior (Cockerell, 1903) | ⇒ Nomada crotchii Cresson, 1878 |
| Nomada crucis Cresson, 1903 | |
| Nomada crudelis Cresson, 1878 | |
| Nomada cubensis Cresson, 1865 | Winged surfclam |
| Nomada cuneata Robertson, 1903 | Cuneate Cuckoo Nomad Bee |
| Nomada custeriana Cockerell, 1911 | |
| Nomada cymbalariae Cockerell, 1906 | |
| Nomada davidsoni Cresson, 1903 | |
| Nomada decempunctata Cresson, 1903 | |
| Nomada decepta Mitchell, 1962 | |
| Nomada dentariae Robertson, 1903 | |
| Nomada depressa Cresson, 1863 | Depressed Cuckoo Nomad Bee |
| Nomada detrita Mitchell, 1962 | |
| Nomada dilucida Cresson, 1878 | |
| Nomada discrepans Schmiedeknecht, 1882 | |
| Nomada dreisbachi Mitchell, 1962 | |
| Nomada ednae Cockerell, 1907 | |
| Nomada edwardsii Cresson, 1878 | Edwards´ Nomad Bee |
| Nomada edwardsii edwardsii Cresson, 1878 | |
| Nomada edwardsii vinnula (Cresson, 1879) | ⇒ Nomada edwardsii Cresson, 1878 |
| Nomada electa Cresson, 1863 | |
| Nomada electella Cresson, 1903 | |
| Nomada elegantula Cresson, 1903 | |
| Nomada elrodi Cresson, 1903 | |
| Nomada erythrochroa Cresson, 1903 | |
| Nomada erythrospila Cockerell, 1916 | |
| Nomada excellens | |
| Nomada fervida Smith, 1854 | |
| Nomada festiva (Cresson, 1863) | ⇒ Nomada italica Dalla Torre ..., 1894 |
| Nomada flavoguttata Kirby, 1802 | Little Nomad Bee |
| Nomada florilega Lovell & Coc..., 1905 | Flower Cuckoo Nomad Bee |
| Nomada fontis Cockerell, 1910 | |
| Nomada formula Viereck, 1902 | |
| Nomada fowleri | |
| Nomada fragilis Cresson, 1878 | |
| Nomada fragilis fragilis Cresson, 1878 | |
| Nomada frieseana Cockerell, 1904 | |
| Nomada fuscicincta Swenk, 1915 | |
| Nomada garciana Cockerell, 1907 | |
| Nomada gibbosa Viereck, 1905 | Twining screwstem |
| Nomada gillettei Cockerell, 1905 | |
| Nomada goodeniana Kirby, 1802 | Gooden's nomad bee |
| Nomada graenicheri Cockerell, 1905 | |
| Nomada grandis Cresson, 1875 | |
| Nomada grayi Cockerell, 1903 | |
| Nomada grayi eastonensis (Cockerell, 1903) | ⇒ Nomada grayi Cockerell, 1903 |
| Nomada grayi grayi Cockerell, 1903 | |
| Nomada grindeliae (Cockerell, 1903) | ⇒ Brachynomada grindeliae Cockerell, 1903 |
| Nomada gutierreziae Cockerell, 1896 | |
| Nomada heiligbrodtii (Cresson, 1878) | ⇒ Nomada texana Cresson, 1872 |
| Nomada heleniella | |
| Nomada hemphilli Cockerell, 1903 | |
| Nomada hera Schwarz, 1965 | |
| Nomada hesperia Cockerell, 1903 | |
| Nomada hesperia hesperia Cockerell, 1903 | |
| Nomada hirtiventris Schwarz, 1990 | |
| Nomada hoodiana Cockerell, 1903 | |
| Nomada hydrophylli Swenk, 1915 | |
| Nomada illinoensis (Robertson, 1900) | ⇒ Nomada illinoiensis Robertson, 1900 |
| Nomada illinoiensis Robertson, 1900 | |
| Nomada imbricata Smith, 1854 | Imbricate Cuckoo Nomad Bee |
| Nomada incerta | |
| Nomada indusata (Mitchell, 1962) | ⇒ Nomada augustiana Mitchell, 1962 |
| Nomada inepta (Mitchell, 1962) | ⇒ Nomada gracilis Cresson, 1863 |
| Nomada interruptella Fowler, 1902 | |
| Nomada italica Dalla Torre ..., 1894 | |
| Nomada jennei Cockerell, 1906 | |
| Nomada jocularis Cresson, 1879 | |
| Nomada kincaidiana Cockerell, 1903 | |
| Nomada kingstonensis (Mitchell, 1962) | ⇒ Nomada lehighensis Cockerell, 1903 |
| Nomada klamathensis Fox, 1926 | |
| Nomada lamarensis Cockerell, 1905 | |
| Nomada latifrons Cockerell, 1903 | |
| Nomada lehighensis Cockerell, 1903 | Lehigh Gap Cuckoo Nomad Bee |
| Nomada lepida Cresson, 1863 | Charming Cuckoo Nomad Bee |
| Nomada leucophthalma Kirby, 1802 | Early Nomad |
| Nomada leucozona Rodeck, 1931 | |
| Nomada lewisi Cockerell, 1903 | |
| Nomada libata Cresson, 1878 | |
| Nomada linsleyi Evans, 1972 | |
| Nomada lippiae Cockerell, 1903 | |
| Nomada lippiae sublippiae (Cockerell, 1907) | ⇒ Nomada lippiae Cockerell, 1903 |
| Nomada longicornis Friese, 1920 | |
| Nomada louisianae Cockerell, 1903 | |
| Nomada luteola Olivier, 1811 | Littleleaf mockorange |
| Nomada luteoloides (Robertson, 1895) | ⇒ Nomada sulphurata Smith, 1854 |
| Nomada luteopicta Cockerell, 1905 | |
| Nomada maculata Cresson, 1863 | Spotted Nomad Bee |
| Nomada maculiventer Swenk, 1915 | |
| Nomada magnifica | |
| Nomada malonella Cockerell, 1910 | |
| Nomada malonina Cockerell, 1910 | |
| Nomada marginella Cockerell, 1903 | |
| Nomada marshamella Kirby, 1802 | Marsham's nomad bee |
| Nomada martinella Cockerell, 1903 | |
| Nomada mckenziei Timberlake &..., 1937 | |
| Nomada media Mitchell, 1962 | |
| Nomada melanoptera Cockerell, 1921 | |
| Nomada melanosoma Cockerell, 1916 | |
| Nomada melliventris Cresson, 1878 | |
| Nomada mendica Mitchell, 1962 | |
| Nomada mera | |
| Nomada mimus Cockerell, 1916 | |
| Nomada minima Mitchell, 1962 | |
| Nomada mitchelli Cockerell, 1911 | |
| Nomada modesta Cresson, 1863 | |
| Nomada modocorum | |
| Nomada morrisoni Cresson, 1878 | |
| Nomada munda Cresson, 1878 | |
| Nomada mutans Cockerell, 1910 | |
| Nomada neomexicana Cockerell, 1903 | |
| Nomada obliquella Fowler, 1902 | |
| Nomada obliterata Cresson, 1863 | Obliterated Cuckoo Nomad Bee |
| Nomada obscurella Fowler, 1902 | |
| Nomada ochlerata Mitchell, 1962 | |
| Nomada odontocera Cockerell, 1916 | |
| Nomada opacella Timberlake, 1954 | |
| Nomada opposita Cresson, 1878 | |
| Nomada orbitalis Perez, 1913 | |
| Nomada oregonica Cockerell, 1903 | |
| Nomada ornithica Cockerell, 1906 | |
| Nomada osborni Cockerell, 1911 | |
| Nomada ovata Robertson, 1903 | Orange-Tailed Nomad |
| Nomada pacata | |
| Nomada packardiella Cockerell, 1906 | |
| Nomada pallidella Cockerell, 1905 | |
| Nomada pallidelutea Swenk, 1915 | |
| Nomada panzeri Lepeletier, 1841 | Panzer's nomad bee |
| Nomada parallela Swenk, 1913 | |
| Nomada parata Cresson, 1878 | |
| Nomada parkeri Evans, 1972 | |
| Nomada pascoensis Cockerell, 1903 | |
| Nomada pecosensis Cockerell, 1903 | |
| Nomada perbella Viereck, 1905 | |
| Nomada perplexa Cresson, 1863 | |
| Nomada perplexans Cockerell, 1910 | |
| Nomada physura Cockerell, 1903 | |
| Nomada placitensis Cockerell, 1903 | |
| Nomada portalensis Broemeling, 1989 | |
| Nomada proxima Cresson, 1863 | |
| Nomada pseudops (Cockerell, 1905) | ⇒ Nomada bethunei Cockerell, 1903 |
| Nomada psilocera Kohl, 1908 | |
| Nomada pulsatillae Cockerell, 1906 | |
| Nomada putnami Cresson, 1876 | |
| Nomada pygmaea Cresson, 1863 | Pygmy Cuckoo Nomad Bee |
| Nomada pyrrha Cockerell, 1916 | |
| Nomada rhodalis Cockerell, 1903 | |
| Nomada rhodomelas Cockerell, 1903 | |
| Nomada rhodosoma Cockerell, 1903 | |
| Nomada rhodosoma rhodosomella (Cockerell, 1903) | ⇒ Nomada rhodosoma Cockerell, 1903 |
| Nomada rhodotricha Cockerell, 1903 | |
| Nomada rhodoxantha Cockerell, 1905 | |
| Nomada ridingsii Cresson, 1878 | |
| Nomada rivalis Cresson, 1878 | |
| Nomada robertsonella Cockerell, 1903 | |
| Nomada rodecki Mitchell, 1962 | |
| Nomada rohweri Cockerell, 1906 | |
| Nomada rubi Swenk, 1915 | |
| Nomada rubicunda Olivier, 1811 | Littleleaf mockorange |
| Nomada rubrella Cockerell, 1905 | |
| Nomada rufipes Fabricius, 1793 | Black-horned nomad bee |
| Nomada ruidosensis Cockerell, 1903 | |
| Nomada salicis Robertson, 1900 | |
| Nomada sanctaecrucis Cockerell, 1903 | |
| Nomada sayi Robertson, 1893 | |
| Nomada schwarzi Cockerell, 1903 | |
| Nomada schwarzi contractula (Cockerell, 1903) | ⇒ Nomada schwarzi Cockerell, 1903 |
| Nomada scita Cresson, 1878 | |
| Nomada scitiformis Cockerell, 1903 | |
| Nomada sedae (Cockerell, 1919) | ⇒ Nomada sedi Cockerell, 1919 |
| Nomada semiscita Cockerell, 1904 | |
| Nomada semisuavis Cockerell, 1910 | |
| Nomada seneciophila Mitchell, 1962 | |
| Nomada siccorum Cockerell, 1919 | |
| Nomada simplicicoxa Swenk, 1915 | |
| Nomada skinneri Cockerell, 1908 | |
| Nomada snowii Cresson, 1878 | |
| Nomada sobrina Mitchell, 1962 | |
| Nomada sophiarum Cockerell, 1903 | |
| Nomada sphaerogaster Cockerell, 1903 | |
| Nomada striata Fabricius, 1793 | Blunt-jawed nomad bee |
| Nomada suavis Cresson, 1878 | |
| Nomada subaccepta Cockerell, 1907 | |
| Nomada subangusta Cockerell, 1903 | |
| Nomada subcornuta (Kirby, 1802) | ⇒ Nomada fulvicornis Fabricius, 1793 |
| Nomada subgracilis Cockerell, 1903 | |
| Nomada subrubi Swenk, 1915 | |
| Nomada subrutila Lovell & Coc..., 1905 | |
| Nomada subsimilis Cockerell, 1903 | |
| Nomada subvicinalis Cockerell, 1903 | |
| Nomada suda Cresson, 1879 | |
| Nomada superba Cresson, 1863 | Superb Nomada |
| Nomada taraxacella Cockerell, 1903 | |
| Nomada texana Cresson, 1872 | Texas Nomad Bee |
| Nomada tiftonensis Cockerell, 1903 | Tifton Nomad Bee |
| Nomada timberlakei Broemeling, 1989 | |
| Nomada tintinnabulum Cockerell, 1903 | |
| Nomada townesi Mitchell, 1962 | |
| Nomada tricurta Swenk, 1915 | |
| Nomada truttarum Cockerell, 1909 | |
| Nomada tyrrellensis Mitchell, 1962 | |
| Nomada uhleri Cockerell, 1905 | |
| Nomada ulsterensis Mitchell, 1962 | |
| Nomada ultima Cockerell, 1903 | |
| Nomada ultimella Cockerell, 1903 | |
| Nomada undulaticornis Cockerell, 1906 | |
| Nomada utahensis Moalif, 1988 | Utah Nomada |
| Nomada utensis Swenk, 1913 | |
| Nomada valida Smith, 1854 | True Cuckoo Nomad Bee |
| Nomada vallesina Cockerell, 1906 | |
| Nomada vallesina honorata (Cockerell, 1922) | ⇒ Nomada vallesina Cockerell, 1906 |
| Nomada vegana (Cockerell, 1903) | ⇒ Nomada modesta Cresson, 1863 |
| Nomada verecunda Cresson, 1879 | |
| Nomada vexator Cockerell, 1909 | |
| Nomada vicinalis Cresson, 1878 | |
| Nomada vicinalis infrarubens (Cockerell, 1905) | ⇒ Nomada vicinalis Cresson, 1878 |
| Nomada vicinalis vicinalis Cresson, 1878 | |
| Nomada victrix Cockerell, 1911 | |
| Nomada vierecki Cockerell, 1903 | |
| Nomada vincta Say, 1837 | Bounded Cuckoo Nomad Bee |
| Nomada vinnula | |
| Nomada washingtoni Cockerell, 1903 | |
| Nomada wheeleri Cockerell, 1903 | |
| Nomada wheeleri engelmanniae (Cockerell, 1911) | ⇒ Nomada wheeleri Cockerell, 1903 |
| Nomada wheeleri wheeleri Cockerell, 1903 | |
| Nomada wisconsinensis (Graenicher, 1911) | ⇒ Nomada fervida Smith, 1854 |
| Nomada wootonella Cockerell, 1909 | |
| Nomada xantholepis Cockerell, 1911 | |
| Nomada xanthophila Cockerell, 1900 | |
| Nomada xanthura Cockerell, 1908 | Yellow-Striped Cuckoo Nomad Bee |
| Nomada zebrata Cresson, 1878 | |
| Nomada ziziae Swenk, 1915 | |
| Oreopasites (Oreopasites) arizonica Linsley, 1941 | |
| Oreopasites (Oreopasites) favreauae Rozen, 1992 | |
| Oreopasites (Oreopasites) scituli Cockerell, 1906 | |
| Oreopasites (Oreopasites) vanduzeei Cockerell, 1925 | |
| Oreopasites (Perditopasites) barbarae Rozen, 1992 | |
| Oreopasites hurdi Rozen, 1992 | |
| Oreopasites linsleyi Rozen, 1992 | |
| Oreopasites powelli Rozen, 1992 | |
| Paranomada californica Linsley, 1945 | |
| Paranomada nitida Linsley & Mi..., 1937 | |
| Paranomada velutina Linsley, 1939 | |
| Paratetrapedia (Lophopedia) apicalis Cresson, 1878 | |
| Paratetrapedia nigriceps Friese, 1899 | |
| Paratetrapedia pygmaea Schrottky, 1902 | |
| Paratrigona (Paratrigona) ornaticeps (Schwarz, 1938) | ⇒ Paratrigona guigliae Moure, 1960 |
| Paratrigona lophocoryphe Moure, 1963 | |
| Partamona (Partamona) auripennis Pedro & Camargo, 2003 | |
| Partamona (Partamona) bilineata Say, 1837 | |
| Partamona (Partamona) cupira Smith, 1863 | |
| Partamona (Partamona) musarum Cockerell, 1917 | |
| Partamona (Partamona) orizabaensis Strand, 1919 | |
| Partamona (Partamona) peckolti Friese, 1901 | |
| Pasites friesei Cockerell, 1910 | |
| Peponapis (Eopeponapis) michelbacherorum Hurd & Linsley, 1964 | |
| Peponapis (Eopeponapis) utahensis Cockerell, 1905 | |
| Peponapis (Peponapis) pruinosa Say, 1837 | Eastern cucurbit bee |
| Peponapis (Xenopeponapis) crassidentata Cockerell, 1949 | |
| Peponapis (Xenopeponapis) timberlakei Hurd & Linsley, 1964 | |
| Peponapis limitaris Cockerell, 1906 | |
| Phileremulus cockerelli | |
| Plebeia frontalis Friese, 1911 | |
| Plebeia llorentei Ayala, 1999 | |
| Plebeia poecilochroa Moure & Camargo, 1995 | |
| Plebeia pulchra Ayala, 1999 | |
| Protomelecta brevipennis ♰ T. D. A. Coc..., 1908 | |
| Pseudepeolus guttata | |
| Psithyrus ashtoni (Cresson, 1864) | ⇒ Bombus ashtoni Cresson, 1864 |
| Psithyrus fernaldae Franklin, 1911 | |
| Psithyrus insularis Smith, 1861 | |
| Psithyrus suckleyi (Greene, 1860) | ⇒ Bombus suckleyi Greene, 1860 |
| Psithyrus variabilis Cresson, 1872 | |
| Ptilothrix bombiformis Cresson, 1878 | Hibiscus Bee |
| Ptilothrix sumichrasti Cresson, 1878 | |
| Pyrrhomelecta anthophorae | |
| Rhopalolemma robertsi Roig-Alsina, 1991 | |
| Rhopalolemma rotundiceps Roig-Alsina, 1997 | |
| Scaptotrigona hellwegeri Friese, 1900 | |
| Scaptotrigona luteipennis Friese, 1901 | |
| Scaptotrigona pectoralis Dalla Torre, 1896 | |
| Scaptotrigona polysticta Moure, 1950 | Norton stygobromid |
| Scaura argyrea Cockerell, 1912 | |
| Scirtetica occidentalis (Bruner, L., 1893) | ⇒ Trimerotropis occidentalis Bruner, 1889 |
| Simanthedon linsleyi Zavortink, 1975 | |
| Svastra (Anthedonia) compta Cresson, 1878 | |
| Svastra (Brachymelissodes) cressonii Dalla Torre, 1896 | |
| Svastra (Brachymelissodes) minima LaBerge, 1956 | |
| Svastra (Epimelissodes) aegis LaBerge, 1956 | |
| Svastra (Epimelissodes) atripes Cresson, 1872 | |
| Svastra atripes atrimitra LaBerge, 1956 | |
| Svastra atripes atripes Cresson, 1872 | |
| Svastra atripes georgica Cresson, 1878 | |
| Svastra (Epimelissodes) comanche Cresson, 1872 | |
| Svastra (Epimelissodes) grandissima Cockerell, 1905 | |
| Svastra (Epimelissodes) helianthelli Cockerell, 1905 | |
| Svastra (Epimelissodes) machaerantherae Cockerell, 1904 | |
| Svastra (Epimelissodes) obliqua Say, 1837 | Oblique Longhorn |
| Svastra obliqua caliginosa Cresson, 1878 | |
| Svastra obliqua expurgata Cockerell, 1925 | |
| Svastra obliqua obliqua Say, 1837 | |
| Svastra (Epimelissodes) petulca Cresson, 1878 | |
| Svastra petulca petulca Cresson, 1878 | |
| Svastra petulca suffusa Cresson, 1878 | |
| Svastra (Epimelissodes) sabinensis Cockerell, 1924 | |
| Svastra sabinensis laterufa Cockerell, 1934 | |
| Svastra sabinensis nubila LaBerge, 1956 | |
| Svastra sabinensis sabinensis Cockerell, 1924 | |
| Svastra (Epimelissodes) texana Cresson, 1872 | |
| Svastra texana eluta LaBerge, 1956 | |
| Svastra texana texana Cresson, 1872 | |
| Svastra (Idiomelissodes) duplocincta Cockerell, 1905 | |
| Svastra (Svastra) flavitarsis Spinola, 1851 | |
| Svastra nevadensis Cresson, 1874 | |
| Svastra pallidior LaBerge, 1963 | |
| Svastra sila LaBerge, 1956 | |
| Svastrides melanura Spinola, 1851 | |
| Synhalonia bakeri (Timberlake, 1973) | ⇒ Eucera bakeri Timberlake, 1973 |
| Synhalonia cressoniana (Cockerell, 1905) | ⇒ Tetraloniella cressoniana Cockerell, 1905 |
| Synhalonia edwardsii (Cresson, 1878) | ⇒ Eucera edwardsii Cresson, 1878 |
| Syntrichalonia exquisita Cresson, 1878 | Exquisite Long-horned Bee |
| Tetragona dorsalis Smith, 1854 | |
| Tetragona ziegleri Friese, 1900 | Stingless bee |
| Tetragonisca angustula Latreille, 1825 | |
| Tetragonula clypearis Friese, 1908 | |
| Tetragonula sapiens Cockerell, 1911 | |
| Tetralonia amoena Walker, 1871 | |
| Tetralonia atrata (Klug, 1845) | ⇒ Eucera atrata Klug, 1845 |
| Tetralonia macrognatha Gerstäcker, 1870 | |
| Tetralonia poetica Cockerell, 1914 | |
| Tetraloniella (Tetraloniella) albata Cresson, 1872 | |
| Tetraloniella (Tetraloniella) arizonica Cockerell, 1937 | |
| Tetraloniella (Tetraloniella) balluca LaBerge, 2001 | |
| Tetraloniella (Tetraloniella) cacuminis LaBerge, 2001 | |
| Tetraloniella (Tetraloniella) crenulaticornis Cockerell, 1898 | |
| Tetraloniella (Tetraloniella) davidsoni Cockerell, 1905 | |
| Tetraloniella (Tetraloniella) distata LaBerge, 2001 | |
| Tetraloniella (Tetraloniella) donata Cresson, 1878 | |
| Tetraloniella (Tetraloniella) eriocarpi Cockerell, 1898 | |
| Tetraloniella (Tetraloniella) flagellicornis Smith, 1879 | |
| Tetraloniella (Tetraloniella) helianthorum Cockerell, 1914 | |
| Tetraloniella (Tetraloniella) imitatrix Cockerell & ..., 1899 | |
| Tetraloniella (Tetraloniella) lanzarotensis Tkalcu, 1993 | |
| Tetraloniella (Tetraloniella) lippiae Cockerell, 1904 | |
| Tetraloniella (Tetraloniella) michoacanensis LaBerge, 2001 | |
| Tetraloniella (Tetraloniella) paenalbata LaBerge, 2001 | |
| Tetraloniella (Tetraloniella) perconcinna Cockerell, 1949 | |
| Tetraloniella (Tetraloniella) pomonae Cockerell, 1915 | |
| Tetraloniella (Tetraloniella) spissa Cresson, 1872 | |
| Tetraloniella (Tetraloniella) vandykei LaBerge, 2001 | |
| Tetraloniella cressoniana Cockerell, 1905 | |
| Tetraloniella incana LaBerge, 2001 | |
| Tetraloniella ochraea LaBerge, 2001 | |
| Tetraloniella pennata LaBerge, 2001 | |
| Tetraloniella sphaerabeae | |
| Tetraloniella sphaeralceae LaBerge, 2001 | |
| Tetraloniella wilmattae Cockerell, 1917 | |
| Thygater chaetaspis Moure, 1941 | |
| Thyreus abbottii Swainson, 1821 | |
| Thyreus caeruleopunctatus Blanchard, 1840 | Chequered cuckoo bee |
| Thyreus calceatus Vachal, 1903 | |
| Thyreus nitidulus Fabricius, 1804 | Hairy cockle |
| Thyreus sphenophorus Lieftinck, 1962 | |
| Toromelissa nemaglossa Toro & Ruz, 1969 | |
| Townsendiella californica Michener, 1936 | |
| Townsendiella pulchra Crawford, 1916 | |
| Townsendiella rufiventris Linsley, 1942 | |
| Triepeolus agaricifer (Cockerell, 1907) | ⇒ Epeolus flavofasciatus Smith, 1879 |
| Triepeolus ancoratus Cockerell, 1916 | |
| Triepeolus antiochensis Rightmyer, 2008 | |
| Triepeolus argentimus Rightmyer, 2008 | |
| Triepeolus argus Rightmyer, 2008 | |
| Triepeolus atripes (Mitchell, 1962) | ⇒ Triepeolus micropygius Robertson, 1903 |
| Triepeolus balteatus Cockerell, 1921 | |
| Triepeolus banksi | |
| Triepeolus bardus (Cresson, 1878) | ⇒ Triepeolus distinctus Cresson, 1878 |
| Triepeolus bimorulus Rightmyer, 2008 | |
| Triepeolus californicus Cresson, 1878 | |
| Triepeolus charlesi Rightmyer, 2008 | |
| Triepeolus circumculus Rightmyer, 2008 | |
| Triepeolus concavus (Cresson, 1878) | ⇒ Doeringiella concava |
| Triepeolus coquilletti (Cockerell, 1905) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus cressonii Robertson, 1897 | Eucera Cuckoo Nomad Bee |
| Triepeolus custeri Cockerell, 1926 | |
| Triepeolus cyclurus Cockerell, 1923 | |
| Triepeolus dacotensis Stevens, 1919 | |
| Triepeolus denverensis Cockerell, 1910 | |
| Triepeolus diffusus Rightmyer, 2008 | |
| Triepeolus dilutus Rightmyer, 2008 | |
| Triepeolus distinctus Cresson, 1878 | |
| Triepeolus diversipes Cockerell, 1924 | |
| Triepeolus donatus Smith, 1854 | Thistle Longhorn-Cuckoo |
| Triepeolus eldoradensis Cockerell, 1910 | |
| Triepeolus eldredi (Cockerell, 1907) | ⇒ Triepeolus texanus Cresson, 1878 |
| Triepeolus eliseae Rightmyer, 2017 | |
| Triepeolus engeli Rightmyer, 2008 | |
| Triepeolus fortis (Cockerell, 1921) | ⇒ Triepeolus martini Cockerell, 1900 |
| Triepeolus fraserae (Cockerell, 1904) | ⇒ Triepeolus cressonii Robertson, 1897 |
| Triepeolus gabrielis | |
| Triepeolus georgicus Mitchell, 1962 | |
| Triepeolus grandis Friese, 1917 | |
| Triepeolus grindeliae Cockerell, 1907 | |
| Triepeolus helianthi Robertson, 1897 | Sunflower Cuckoo Nomad Bee |
| Triepeolus helianthi arizonensis (Cockerell, 1904) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus helianthi grandior (Cockerell, 1919) | ⇒ Triepeolus texanus Cresson, 1878 |
| Triepeolus helianthi helianthi (Robertson, 1897) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus helianthi pacificus (Cockerell, 1919) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus heterurus (Cockerell & ..., 1924) | ⇒ Triepeolus utahensis Cockerell, 1921 |
| Triepeolus hopkinsi Cockerell, 1905 | |
| Triepeolus intrepidus Smith, 1879 | |
| Triepeolus isocomae Cockerell, 1904 | |
| Triepeolus isohedrus Rightmyer, 2008 | |
| Triepeolus joliae Rightmyer, 2008 | |
| Triepeolus junctus Mitchell, 1962 | |
| Triepeolus kathrynae Rozen, 1989 | |
| Triepeolus laticaudus Cockerell, 1921 | |
| Triepeolus lectiformis Cockerell, 1925 | |
| Triepeolus lestes (Cockerell, 1921) | ⇒ Triepeolus subalpinus Cockerell, 1910 |
| Triepeolus lineatulus (Cockerell & ..., 1924) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus loganensis Cockerell, 1925 | |
| Triepeolus loomisorum Rozen, 1989 | |
| Triepeolus lunatus Say, 1824 | |
| Triepeolus lunatus concolor (Robertson, 1898) | ⇒ Triepeolus lunatus Say, 1824 |
| Triepeolus lunatus lunatus (Say, 1824) | ⇒ Triepeolus lunatus Say, 1824 |
| Triepeolus lusor Cockerell, 1925 | |
| Triepeolus margaretae Rightmyer, 2008 | |
| Triepeolus martini Cockerell, 1900 | |
| Triepeolus matildae Rightmyer, 2014 | |
| Triepeolus melanarius Rightmyer, 2008 | |
| Triepeolus mesillae (Cockerell, 1904) | ⇒ Triepeolus distinctus Cresson, 1878 |
| Triepeolus mexicanus Cresson, 1878 | |
| Triepeolus michiganensis Mitchell, 1962 | Michigan Cuckoo Nomad Bee |
| Triepeolus micropygius Robertson, 1903 | |
| Triepeolus micropygius atripes Mitchell, 1962 | |
| Triepeolus micropygius micropygius (Robertson, 1903) | ⇒ Triepeolus micropygius Robertson, 1903 |
| Triepeolus mitchelli Hurd, 1979 | |
| Triepeolus monardae Mitchell, 1962 | |
| Triepeolus nevadensis Cresson, 1878 | |
| Triepeolus nigrihirtus Mitchell, 1962 | |
| Triepeolus norae Cockerell, 1907 | |
| Triepeolus obliteratus Graenicher, 1911 | |
| Triepeolus occidentalis Cresson, 1878 | |
| Triepeolus paenepectoralis Viereck, 1905 | Twining screwstem |
| Triepeolus parvus Rightmyer, 2008 | |
| Triepeolus pectoralis Robertson, 1897 | Goldenrod Longhorn-Cuckoo Bee |
| Triepeolus penicilliferus Brues, 1903 | |
| Triepeolus perpictus Rightmyer, 2008 | |
| Triepeolus phaeopygus Rightmyer, 2008 | |
| Triepeolus pimarum (Cockerell, 1904) | ⇒ Triepeolus distinctus Cresson, 1878 |
| Triepeolus punctoclypeus Rightmyer, 2008 | |
| Triepeolus quadrifasciatus Say, 1823 | |
| Triepeolus quadrifasciatus atlanticus (Mitchell, 1962) | ⇒ Triepeolus quadrifasciatus Say, 1823 |
| Triepeolus quadrifasciatus quadrifasciatus Say, 1823 | |
| Triepeolus rectangularis (Cockerell, 1921) | ⇒ Triepeolus texanus Cresson, 1878 |
| Triepeolus remigatus Fabricius, 1804 | Hairy cockle |
| Triepeolus rhododontus Cockerell, 1921 | |
| Triepeolus robustus Cresson, 1878 | |
| Triepeolus rohweri Cockerell, 1911 | |
| Triepeolus rufithorax Graenicher, 1928 | |
| Triepeolus rufoclypeus Fox, 1891 | |
| Triepeolus sandhousae Cockerell, 1925 | |
| Triepeolus sarothrinus Cockerell, 1929 | |
| Triepeolus scelestus Cresson, 1878 | |
| Triepeolus segregatus Cockerell, 1900 | |
| Triepeolus simplex Robertson, 1903 | Simple Longhorn-Cuckoo |
| Triepeolus subalpinus Cockerell, 1910 | |
| Triepeolus sublunatus (Cockerell, 1907) | ⇒ Triepeolus mitchelli Hurd, 1979 |
| Triepeolus subnitens Cockerell & ..., 1929 | |
| Triepeolus tanneri Cockerell, 1928 | |
| Triepeolus texanus Cresson, 1878 | |
| Triepeolus texanus nigripes (Cockerell, 1898) | ⇒ Triepeolus remigatus Fabricius, 1804 |
| Triepeolus timberlakei Cockerell, 1929 | |
| Triepeolus townsendi Cockerell, 1907 | |
| Triepeolus utahensis Cockerell, 1921 | |
| Triepeolus vandykei (Cockerell & ..., 1924) | ⇒ Triepeolus paenepectoralis Viereck, 1905 |
| Triepeolus verbesinae Cockerell, 1897 | |
| Triepeolus vernus Rightmyer, 2008 | |
| Triepeolus warriti Rightmyer, 2008 | |
| Triepeolus wyomingensis (Cockerell, 1905) | ⇒ Triepeolus texanus Cresson, 1878 |
| Trigona (Axestotrigona) tescorum (Cockerell, 1910) | ⇒ Axestotrigona ferruginea Lepeletier, 1836 |
| Trigona corvina Cockerell, 1913 | |
| Trigona fulviventris (Guérin-Ménev..., 1845) | ⇒ Trigona braueri Friese, 1900 |
| Trigona musarum Cockerell, 1917 | |
| Trigona necrophaga Camargo & Ro..., 1991 | |
| Trigona nigerrima Cresson, 1878 | |
| Trigona prisca Michener & G..., 1988 | |
| Trigona silvestriana Vachal, 1908 | |
| Trigona spinipes Fabricius, 1793 | |
| Trigonisca (Trigonisca) mixteca Ayala, 1999 | |
| Trigonisca (Trigonisca) pipioli Ayala, 1999 | |
| Trigonisca longicornis Friese, 1903 | |
| Triopasites penniger Cockerell, 1894 | |
| Xenoglossa (Euxenoglossa) kansensis Cockerell, 1905 | Kansas Squash Bee |
| Xenoglossa (Euxenoglossa) strenua Cresson, 1878 | |
| Xenoglossa (Xenoglossa) angustior Cockerell, 1899 | |
| Xenoglossa (Xenoglossa) gabbii Cresson, 1878 | |
| Xenoglossa (Xenoglossa) patricia Cockerell, 1896 | |
| Xenoglossa mustelina Fox, 1893 | |
| Xenoglossa spriuna | |
| Xeromelecta (Melectomorpha) californica Cresson, 1878 | California Xeromelecta |
| Xeromelecta (Melectomorpha) interrupta Cresson, 1872 | Interrupted Xeromelecta |
| Xeromelecta (Nesomelecta) tibialis Fabricius, 1793 | |
| Xeromelecta (Xeromelecta) larreae Cockerell, 1900 | Larrea Xeromelecta |
| Xylocopa (Afroxylocopa) nigrita (Fabricius, 1775) | ⇒ Xylocopa nigrita Fabricius, 1775 |
| Xylocopa (Alloxylocopa) appendiculata Smith, 1852 | Japanese carpenter bee |
| Xylocopa (Apoxylocopa) lugubris Gerstäcker, 1857 | |
| Xylocopa (Koptortosoma) aruana Ritsema, 1876 | Great Carpenter Bee |
| Xylocopa (Koptortosoma) bombiformis Smith, 1874 | Arnold's dogwood |
| Xylocopa (Koptortosoma) caffra Linnaeus, 1767 | |
| Xylocopa (Koptortosoma) lieftincki Leys, 2000 | |
| Xylocopa (Koptortosoma) nigrita Fabricius, 1775 | |
| Xylocopa (Koptortosoma) senior Vachal, 1899 | Malheur Cave amphipod |
| Xylocopa (Lestis) bombylans Fabricius, 1775 | Peacock carpenter bee |
| Xylocopa (Megaxylocopa) frontalis (Olivier, 1789) | ⇒ Xylocopa frontalis Olivier, 1789 |
| Xylocopa (Mesotrichia) flavorufa DeGeer, 1778 | |
| Xylocopa (Nanoxylocopa) ciliata Burmeister, 1876 | |
| Xylocopa (Neoxylocopa) augusti Lepeletier, 1841 | |
| Xylocopa (Neoxylocopa) brasilianorum Linnaeus, 1767 | Arnold's dogwood |
| Xylocopa brasilianorum brasilianorum Linnaeus, 1767 | |
| Xylocopa brasilianorum sonorina Smith, 1874 | Sonoran carpenter bee |
| Xylocopa (Neoxylocopa) frontalis Olivier, 1789 | |
| Xylocopa (Neoxylocopa) mexicanorum Cockerell, 1912 | |
| Xylocopa (Neoxylocopa) mordax Smith, 1874 | Antillean Carpenter Bee |
| Xylocopa (Neoxylocopa) nigrocincta Smith, 1854 | |
| Xylocopa (Neoxylocopa) sonorina Smith, 1874 | Sonoran carpenter bee |
| Xylocopa (Neoxylocopa) varipuncta Patton, 1879 | Valley carpenter bee |
| Xylocopa (Notoxylocopa) guatemalensis Cockerell, 1912 | |
| Xylocopa (Notoxylocopa) tabaniformis Smith, 1854 | Arnold's dogwood |
| Xylocopa tabaniformis androleuca Michener, 1940 | |
| Xylocopa tabaniformis azteca Cresson, 1878 | |
| Xylocopa tabaniformis illota Cockerell, 1919 | |
| Xylocopa tabaniformis orpifex Smith, 1874 | |
| Xylocopa tabaniformis parkinsoniae Cockerell, 1917 | Parkinson's carpenter bee |
| Xylocopa tabaniformis sylvicola O´Brien & Hurd, 1965 | |
| Xylocopa tabaniformis tabaniformis Smith, 1854 | |
| Xylocopa (Proxylocopa) rufa Friese, 1901 | |
| Xylocopa (Schonnherria) loripes Smith, 1874 | Arnold's dogwood |
| Xylocopa (Schonnherria) micans Lepeletier, 1841 | Southern Carpenter Bee |
| Xylocopa (Schonnherria) muscaria Fabricius, 1775 | |
| Xylocopa (Schonnherria) splendidula Lepeletier, 1841 | |
| Xylocopa (Stenoxylocopa) artifex Smith, 1874 | Arnold's dogwood |
| Xylocopa (Stenoxylocopa) micheneri Hurd, 1978 | Michener´s Carpenter Bee |
| Xylocopa micheneri micheneri Hurd, 1978 | |
| Xylocopa (Stenoxylocopa) strandi Dusmet y Alonso, 1924 | |
| Xylocopa (Xylocopa) violacea Müller, 1776 | European Carpenter Bee |
| Xylocopa (Xylocopoides) californica Cresson, 1864 | California carpenter bee |
| Xylocopa californica arizonensis Cresson, 1879 | Arizona Carpenter Bee |
| Xylocopa californica californica Cresson, 1864 | California Carpenter Bee |
| Xylocopa californica diamesa Hurd, 1954 | |
| Xylocopa (Xylocopoides) virginica Linnaeus, 1771 | Carpenter bee |
| Xylocopa virginica krombeini Hurd, 1961 | |
| Xylocopa virginica texana Cresson, 1872 | Texas Carpenter Bee |
| Xylocopa virginica virginica Linnaeus, 1771 | Virginia Carpenter Bee |
| Xylocopa (Xylomelissa) io Vachal, 1898 | |
| Xylocopa (Xylomelissa) purpurina (Cockerell, 1932) | ⇒ Xylocopa io Vachal, 1898 |
| Xylocopa (Xylomelissa) rufitarsis Lepeletier, 1841 | |
| Xylocopa arizonensis | |
| Xylocopa euxantha Cockerell, 1933 | |
| Xylocopa gabrielae ♰ M. S. Engel, 2001 | |
| Xylocopa libocedri | |
| Xylocopa purpurea | |
| Xylocopa texana | |
| Xylocopa veripuncta | |
| Zacosmia maculata Cresson, 1879 | |
| Zacosmia maculata desertorum Cockerell, 1916 | |
| Zacosmia maculata maculata Cresson, 1879 | |
