| Amegilla (Asaropoda) albiceps Rayment, 1951 | |
| Amegilla (Asaropoda) meltonensis Rayment, 1951 | |
| Amegilla (Notomegilla) aeruginosa Smith, 1854 | |
| Amegilla (Notomegilla) chlorocyanea Cockerell, 1914 | Blue Banded Bee |
| Amegilla (Zonamegilla) cingulata Fabricius, 1775 | Blue banded bee |
| Amegilla (Zonamegilla) pulchra Smith, 1854 | |
| Amegilla (Zonamegilla) thorogoodi Rayment, 1939 | |
| Anthophora (Anthophora) plumipes Pallas, 1772 | Hairy footed flower bee |
| Anthophora (Clisodon) furcata Panzer, 1798 | Fork Tailed Flower Bee |
| Anthophora (Dasymegilla) quadrimaculata Panzer, 1798 | Four-banded flower bee |
| Anthophora (Heliophila) abroniae Timberlake, 1937 | |
| Anthophora (Heliophila) bimaculata Panzer, 1798 | Green-eyed flower bee |
| Anthophora (Heliophila) hololeuca Cockerell, 1923 | |
| Anthophora (Heliophila) vestita Smith, 1854 | |
| Anthophora (Lophanthophora) affabilis Cresson, 1878 | |
| Anthophora (Lophanthophora) coptognatha Timberlake, 1951 | |
| Anthophora (Melea) abrupta Say, 1837 | Vegetable hummingbird |
| Anthophora (Mystacanthophora) urbana Cresson, 1878 | |
| Anthophora (Pyganthophora) retusa Linnaeus, 1758 | Potter Flower Bee |
| Anthophora vannigera Timberlake, 1951 | |
| Anthophorula (Anthophorula) albata Timberlake, 1947 | |
| Anthophorula (Anthophorula) compactula Cockerell, 1897 | |
| Apis (Apis) mellifera Linnaeus, 1758 | Drone-Bee |
| Bombus (Alpigenobombus) wurflenii Radoszkowski, 1860 | |
| Bombus (Bombias) auricomus Robertson, 1903 | Black and gold bumble bee |
| Bombus (Bombus) affinis Cresson, 1863 | Rusty patch bumble bee |
| Bombus (Bombus) cryptarum Fabricius, 1775 | Cryptic Bumble Bee |
| Bombus (Bombus) lucorum (Linnaeus, 1761) | ⇒ Bombus lantschouensis Vogt, 1908 |
| Bombus (Bombus) occidentalis (Greene, 1858) | ⇒ Bombus terricola Kirby, 1837 |
| Bombus (Bombus) terrestris (Linnaeus, 1758) | ⇒ Bombus longipennis Friese, 1918 |
| Bombus (Bombus) terricola Kirby, 1837 | Yellow-banded Bumble Bee |
| Bombus (Crotchiibombus) crotchii Cresson, 1878 | Crotch bumble bee |
| Bombus (Cullumanobombus) rufocinctus Cresson, 1863 | Red-belted Bumble Bee |
| Bombus (Fervidobombus) californicus (Smith, 1854) | ⇒ Bombus fervidus Fabricius, 1798 |
| Bombus (Fervidobombus) fervidus Fabricius, 1798 | Golden Northern Bumble Bee |
| Bombus (Fervidobombus) pensylvanicus De Geer, 1773 | American bumble bee |
| Bombus (Fraternobombus) fraternus Smith, 1854 | Southern plains bumble bee |
| Bombus (Kallobombus) soroeensis Fabricius, 1776 | Broken-belted Bumble Bee |
| Bombus (Megabombus) hortorum Linnaeus, 1761 | Garden bumblebee |
| Bombus (Megabombus) ruderatus Fabricius, 1775 | Large Garden Bumble Bee |
| Bombus (Megabombus) sylvarum Linnaeus, 1761 | Knapweed Carder Bee |
| Bombus (Melanobombus) lapidarius Linnaeus, 1758 | Large Red-tailed Bumble Bee |
| Bombus (Mucidobombus) mucidus Gerstäcker, 1869 | |
| 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) insularis (Smith, 1861) | ⇒ Bombus hypnorum Linnaeus, 1758 |
| Bombus (Psithyrus) rupestris Fabricius, 1793 | Hill Cuckoo Bee |
| Bombus (Psithyrus) sylvestris Lepeletier, 1832 | Forest Cuckoo Bee |
| Bombus (Psithyrus) vestalis Geoffroy, 1785 | Southern Cuckoo Bee |
| Bombus (Pyrobombus) bifarius Cresson, 1878 | Black-notched Bumble Bee |
| Bombus (Pyrobombus) bimaculatus Cresson, 1863 | Two-spotted Bumble Bee |
| Bombus (Pyrobombus) centralis Cresson, 1864 | Central bumble bee |
| Bombus (Pyrobombus) ephippiatus Say, 1837 | Vegetable hummingbird |
| Bombus (Pyrobombus) flavifrons Cresson, 1863 | Yellow head 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) melanopygus Nylander, 1848 | Black tail bumble bee |
| 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) sandersoni Franklin, 1913 | Sanderson bumble bee |
| Bombus (Pyrobombus) ternarius Say, 1837 | Orange-belted Bumble Bee |
| Bombus (Pyrobombus) vagans Smith, 1854 | Half-black bumble bee |
| 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) humilis Illiger, 1806 | Brown-banded carder bee |
| 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 (Thoracobombus) veteranus Fabricius, 1793 | Sand bumblebee |
| Bombus sg | |
| Braunsapis diminuta Cockerell, 1915 | |
| Braunsapis plebeia Cockerell, 1929 | |
| Braunsapis protuberans Reyes, 1993 | |
| Braunsapis simillima Smith, 1854 | |
| Centris (Paracentris) pallida Fox, 1899 | Pallid Bee |
| Centris (Paracentris) rhodopus Cockerell, 1897 | Red-legged Centris |
| Centris (Paracentris) tiburonensis Cockerell, 1923 | |
| Ceratina (Euceratina) cyanea Kirby, 1802 | Blue carpenter bee |
| Ceratina (Zadontomerus) dupla (Say, 1837) | ⇒ Ceratina floridana Mitchell, 1962 |
| Ceratina (Zadontomerus) nanula Cockerell, 1897 | Dwarf Ceratina |
| Ceratina (Zadontomerus) sequoiae Michener, 1936 | |
| Ceratina mikmaqi Rehan & Shef..., 2011 | Mikmaq Little Carpenter Bee |
| Elaphropoda bembidion Lieftinck, 1966 | Cascade cave amphipod |
| Epeoloides pilosula (Cresson, 1878) | ⇒ Epeoloides pilosulus Cresson, 1878 |
| Epeolus australis Mitchell, 1962 | |
| Epeolus lectoides Robertson, 1901 | Knotted clover |
| Epeolus variegatus Linnaeus, 1758 | Black-Thighed Epeolus |
| Eucera (Eucera) longicornis Linnaeus, 1758 | Long-horned Bee |
| Eucera (Synhalonia) actuosa Cresson, 1878 | |
| Eucera stretchii Cresson, 1878 | |
| Euglossa (Euglossa) championi Cheesman, 1929 | |
| Eulaema (Eulaema) tenuifasciata Friese, 1925 | |
| Exoneura (Brevineura) concinnula (Cockerell, 1913) | ⇒ Brevineura concinnula Cockerell, 1913 |
| Exoneura (Exoneura) bicolor Smith, 1854 | |
| Exoneura (Exoneura) hackeri Cockerell, 1913 | |
| Exoneura (Exoneura) robusta Cockerell, 1922 | |
| Florilegus (Florilegus) condignus Cresson, 1878 | |
| Melecta (Melecta) albifrons Forster, 1771 | Common Mourning Bee |
| Melissodes (Callimelissodes) lupina Cresson, 1878 | |
| Melissodes (Callimelissodes) stearnsi Cockerell, 1905 | |
| Melissodes (Eumelissodes) agilis Cresson, 1878 | Agile Long-horned Bee |
| Melissodes (Eumelissodes) bimatris LaBerge, 1961 | |
| Melissodes (Eumelissodes) robustior Cockerell, 1915 | Robust Long-horned Bee |
| Melissodes (Eumelissodes) utahensis LaBerge, 1961 | |
| Melissodes (Eumelissodes) vernoniae Robertson, 1902 | |
| Melissodes (Heliomelissodes) desponsa Smith, 1854 | Thistle Long-horned Bee |
| Melissodes (Melissodes) comptoides Robertson, 1898 | Brown-winged Long-horned Bee |
| Nomada (Gnathias) bella Cresson, 1863 | Belle Nomad Bee |
| Nomada (Nomadula) ruficornis Linnaeus, 1758 | Fork-Jawed Nomad |
| Nomada armata Herrich-Schä..., 1839 | Armed Nomad |
| Nomada bethunei Cockerell, 1903 | Bethune'S Cuckoo Nomad Bee |
| Nomada fabriciana Linnaeus, 1767 | Fabricius' Nomad Bee |
| Nomada ferruginata Linnaeus, 1767 | Willow Nomad-Bee |
| Nomada flava Panzer, 1798 | Ballona cinquefoil |
| Nomada flavoguttata Kirby, 1802 | Little Nomad Bee |
| Nomada flavopicta (Kirby, 1802) | ⇒ Nomada hesperia Cockerell, 1903 |
| Nomada fucata Panzer, 1798 | Ballona cinquefoil |
| Nomada fulvicornis Fabricius, 1793 | 6-Banded Nomad Bee |
| Nomada goodeniana Kirby, 1802 | Gooden's nomad bee |
| Nomada integra (Brullé, 1832) | ⇒ Nomada integerrima Dalla Torre, 1896 |
| Nomada lathburiana Kirby, 1802 | Lathbury's nomad bee |
| Nomada leucophthalma Kirby, 1802 | Early Nomad |
| Nomada luteoloides (Robertson, 1895) | ⇒ Nomada sulphurata Smith, 1854 |
| Nomada marshamella Kirby, 1802 | Marsham's nomad bee |
| Nomada obtusifrons Nylander, 1848 | Blue Ridge Mountain amphipod |
| Nomada panzeri Lepeletier, 1841 | Panzer's nomad bee |
| Nomada pygmaea Cresson, 1863 | Pygmy Cuckoo Nomad Bee |
| Nomada rufipes Fabricius, 1793 | Black-horned nomad bee |
| Nomada sheppardana Kirby, 1802 | Dark Nomad Bee |
| Nomada striata Fabricius, 1793 | Blunt-jawed nomad bee |
| Nomada subrutila Lovell & Coc..., 1905 | |
| Nomada valida Smith, 1854 | True Cuckoo Nomad Bee |
| Nomada vegana (Cockerell, 1903) | ⇒ Nomada modesta Cresson, 1863 |
| Oreopasites (Oreopasites) arizonica Linsley, 1941 | |
| Peponapis (Peponapis) pruinosa Say, 1837 | Eastern cucurbit bee |
| Svastra (Epimelissodes) obliqua Say, 1837 | Oblique Longhorn |
| Tetragonula carbonaria Smith, 1854 | Sugarbag bee |
| Tetragonula sapiens Cockerell, 1911 | |
| Thyreus albomaculatus DeGeer, 1778 | |
| Thyreus sphenophorus Lieftinck, 1962 | |
| Triepeolus concavus (Cresson, 1878) | ⇒ Doeringiella concava |
| Triepeolus helianthi Robertson, 1897 | Sunflower Cuckoo Nomad Bee |
| Triepeolus lunatus Say, 1824 | |
| Xylocopa (Koptortosoma) aruana Ritsema, 1876 | Great Carpenter Bee |
| Xylocopa (Koptortosoma) bombiformis Smith, 1874 | Arnold's dogwood |
| Xylocopa (Koptortosoma) nigroclypeata Rayment, 1935 | |
| Xylocopa (Koptortosoma) unicolor Smith, 1861 | Delicate tellin |
| Xylocopa (Lestis) aeratus Smith, 1851 | Golden-green carpenter bee |
| Xylocopa (Lestis) bombylans Fabricius, 1775 | Peacock carpenter bee |
| Xylocopa tabaniformis sylvicola O´Brien & Hurd, 1965 | |
| Xylocopa (Schonnherria) splendidula Lepeletier, 1841 | |
| Xylocopa (Xylocopoides) virginica Linnaeus, 1771 | Carpenter bee |
