| Acanthomyops latipes Walsh, 1863 | |
| Adelognathus chelonus Kasparyan, 1990 | |
| Agapostemon (Agapostemon) angelicus Cockerell, 1924 | |
| Agapostemon (Agapostemon) femoratus Crawford, 1901 | |
| Agapostemon (Agapostemon) melliventris Cresson, 1874 | Honey-bellied Agapostemon |
| Agapostemon (Agapostemon) texanus Cresson, 1872 | Green sweat bee |
| Agapostemon cockerelli (Crawford, 1901) | ⇒ Agapostemon obliquus Provancher, 1888 |
| Amblyopone pallipes Haldeman, 1844 | |
| Andrena (Andrena) frigida Smith, 1853 | Frigid Andrena |
| Andrena (Andrena) macoupinensis Robertson, 1900 | Macoupin County Miner Bee |
| Andrena (Andrena) thaspii Graenicher, 1903 | Parsnip Miner Bee |
| Andrena (Holandrena) cressonii Robertson, 1891 | Cresson'S Mining Bee |
| Andrena (Melandrena) carlini Cockerell, 1901 | Carlin'S Mining Bee |
| Andrena (Melandrena) nivalis Smith, 1853 | Snowy Andrena |
| Andrena (Onagrandrena) chylismiae Linsley & Ma..., 1961 | |
| Andrena (Plastandrena) crataegi Robertson, 1893 | Hawthorn Andrena |
| Andrena (Scaphandrena) merriami Cockerell, 1901 | |
| Andrena (Thysandrena) w-scripta Viereck, 1904 | W-Marked Miner Bee |
| Andrena (Trachandrena) cyanophila Cockerell, 1906 | |
| Andrena (Trachandrena) forbesii Robertson, 1891 | Forbes' Mining Bee |
| Andrena raveni Linsley & Ma..., 1961 | |
| Anthidium (Anthidium) atripes Cresson, 1879 | |
| Anthidium (Anthidium) emarginatum Say, 1824 | |
| Anthidium (Anthidium) maculosum Cresson, 1878 | |
| Anthidium (Anthidium) manicatum Linnaeus, 1758 | Continental Wool-carder Bee |
| Anthophora (Anthophoroides) californica Cresson, 1869 | California Anthophora |
| Anthophora (Clisodon) furcata Panzer, 1798 | Fork Tailed Flower Bee |
| Anthophora (Heliophila) exigua Cresson, 1879 | |
| Anthophora (Heliophila) petrophila Cockerell, 1905 | |
| Anthophora (Lophanthophora) affabilis Cresson, 1878 | |
| Anthophora (Lophanthophora) porterae Cockerell, 1900 | |
| Anthophora (Lophanthophora) ursina Cresson, 1869 | |
| Anthophora (Pyganthophora) lesquerellae Cockerell, 1896 | |
| Aphaenogaster occidentalis Emery, 1895 | |
| Apis (Apis) mellifera Linnaeus, 1758 | Drone-Bee |
| Ashmeadiella (Ashmeadiella) cactorum (Cockerell, 1897) | ⇒ Ashmeadiella aridula Cockerell, 1910 |
| Ashmeadiella (Ashmeadiella) foveata Michener, 1939 | |
| Ashmeadiella (Ashmeadiella) gillettei Titus, 1904 | |
| Ashmeadiella meliloti Cockerell, 1897 | |
| Augochlora (Augochlora) pura Say, 1837 | Augochlora Sweat Bee |
| Bassus atripes Cresson, 1865 | |
| Bembix amoena Handlirsch, 1893 | |
| Bombus (Bombus) affinis Cresson, 1863 | Rusty patch bumble bee |
| Bombus (Bombus) occidentalis (Greene, 1858) | ⇒ Bombus terricola Kirby, 1837 |
| 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 (Fervidobombus) sonorus (Say, 1837) | ⇒ Bombus pensylvanica De Geer, 1773 |
| Bombus (Pyrobombus) bifarius Cresson, 1878 | Black-notched Bumble Bee |
| Bombus (Pyrobombus) centralis Cresson, 1864 | Central bumble bee |
| Bombus (Pyrobombus) flavifrons Cresson, 1863 | Yellow head bumble bee |
| Bombus (Pyrobombus) huntii Greene, 1860 | Hunt bumble bee |
| Bombus (Pyrobombus) mixtus Cresson, 1878 | Fuzzy-horned bumble bee |
| Bombus (Pyrobombus) ternarius Say, 1837 | Orange-belted Bumble Bee |
| Bombus (Separatobombus) morrisoni (Cresson, 1878) | ⇒ Bombus morrisoni Cresson, 1878 |
| Brachymyrmex depilis Emery, 1893 | Hairless Rover Ant |
| Brachymyrmex patagonicus Mayr, 1868 | Dark rover ant |
| Calliopsis (Calliopsis) andreniformis Smith, 1853 | Eastern Calliopsis Bee |
| Calliopsis (Micronomadopsis) personata Cockerell, 1897 | |
| Camponotus (Camponotus) herculeanus Linnaeus, 1758 | Black carpenter ant |
| Camponotus (Camponotus) modoc Wheeler, W.M., 1910 | Carpenter ant |
| Camponotus (Camponotus) pennsylvanicus (De Geer, 1773) | ⇒ Camponotus pensylvanica De Geer, 1773 |
| Camponotus (Tanaemyrmex) ocreatus Emery, 1893 | Tapered pigtoe |
| Camponotus (Tanaemyrmex) sansabeanus Buckley, 1866 | |
| Camponotus (Tanaemyrmex) vicinus Mayr, 1870 | Maculate carpenter ant |
| Cimbex americana (Leach, 1817) | ⇒ Cimbex americanus Leach, 1817 |
| Colletes gypsicolens Cockerell, 1897 | |
| Colletes kincaidii Cockerell, 1898 | |
| Colletes louisae Cockerell, 1897 | |
| Cratichneumon culex Muller, 1776 | |
| Crematogaster (Crematogaster) coarctata Mayr, 1870 | |
| Crematogaster (Crematogaster) laeviuscula Mayr, 1870 | |
| Dasymutilla occidentalis Linnaeus, 1758 | Common Eastern Velvet Ant |
| Dasymutilla vestita Lepeletier, 1845 | |
| Diadasia (Coquillettapis) diminuta Cresson, 1878 | |
| Diadasia (Coquillettapis) lutzi Cockerell, 1924 | |
| Diadasia (Coquillettapis) rinconis Cockerell, 1897 | |
| Diadegma holopyga Thomson, 1887 | |
| Dianthidium (Adanthidium) arizonicum Rohwer, 1916 | |
| Dolerus similis Norton, 1861 | |
| Dolichovespula (Dolichovespula) maculata Linnaeus, 1763 | Bald hornet |
| Dolichovespula arenaria Fabricius, 1775 | Aerial yellowjacket |
| Dorymyrmex flavus McCook, 1879 | |
| Dorymyrmex insanus Buckley, 1866 | Pyramid ant |
| Dorymyrmex smithi (Cole, 1936) | ⇒ Dorymyrmex insana Buckley, 1866 |
| Dufourea orovada Bohart, 1980 | |
| Dufourea subdavidsoni Bohart, 1949 | |
| Ectemnius spiniferus Fox, 1895 | |
| Elaphropoda bembidion Lieftinck, 1966 | Cascade cave amphipod |
| Entypus unifasciatus Say, 1828 | Eastern Tawny-Horned Spider Wasp |
| Epeolus minimus Robertson, 1902 | Least Cellophane-Cuckoo Bee |
| Eucera (Synhalonia) quadricincta Timberlake, 1969 | |
| Eucera (Synhalonia) speciosa Cresson, 1878 | |
| Eumenes (Eumenes) consobrinus (de Saussure, 1856) | ⇒ Cyphomenes anisitsii Brèthes, 1906 |
| Euodynerus (Pareuodynerus) leucomelas Saussure, 1856 | Wasp |
| Forelius mccooki McCook, 1879 | |
| Forelius pruinosus Roger, 1863 | High noon ant |
| Formica (Raptiformica) sanguinea Latreille, 1798 | Blood-Red Ant |
| Formica (Serviformica) fusca (Linnaeus, 1758) | ⇒ Tetramorium caespitum Linnaeus, 1758 |
| Formica argentea Wheeler, W.M., 1912 | Silvery Field Ant |
| Formica aserva Forel, 1901 | Round combshell |
| Formica gnava Buckley, 1866 | |
| Formica lasioides Emery, 1893 | Tapered pigtoe |
| Formica manni Wheeler, W.M., 1913 | Orcutt nakedclam |
| Formica neoclara Emery, 1893 | Tapered pigtoe |
| Formica neogagates Viereck, 1903 | New World Black Ant |
| Formica neorufibarbis Emery, 1893 | Tapered pigtoe |
| Formica podzolica Francoeur, 1973 | |
| Halictus (Monilapis) confusus Smith, 1853 | Confusing Furrow Bee |
| Halictus (Odontalictus) ligatus Say, 1837 | Ligated Furrow Bee |
| Halictus (Protohalictus) rubicundus (Christ, 1791) | ⇒ Halictus rubicundus Christ, 1791 |
| Halictus (Seladonia) tripartitus Cockerell, 1895 | |
| Haltichella rhyacionia (Gahan, 1927) | ⇒ Haltichella rhyacioniae Gahan, 1927 |
| Hexacola hexatoma Hartig, 1841 | Gall wasp |
| Hoplitis (Monumetha) albifrons Kirby, 1837 | White-Fronted Small-Mason |
| Hylaeus (Cephalylaeus) basalis Smith, 1853 | Basal Masked Bee |
| Hylaeus (Prosopis) episcopalis Cockerell, 1896 | |
| Hylaeus (Prosopis) modestus Say, 1837 | Modest Masked Bee |
| Kiefferiella acmaeodera Weld, 1956 | |
| Lasioglossum (Dialictus) imitatum Smith, 1853 | Bristle Sweat Bee |
| Lasioglossum (Lasioglossum) coriaceum Smith, 1853 | Leathery Sweat Bee |
| Lasioglossum (Lasioglossum) sisymbrii Cockerell, 1895 | |
| Lasioglossum lasioglossum Strand, 1913 | |
| Lasius (Cautolasius) flavus Fabricius, 1782 | Blond Field Ant |
| Lasius (Chthonolasius) humilis Wheeler, W.M., 1917 | Sickle jackknife |
| Lasius (Lasius) alienus Foerster, 1850 | Alien field ant |
| Lasius (Lasius) crypticus Wilson, 1955 | Elongate macoma |
| Lasius (Lasius) neoniger Emery, 1893 | Cornfield ant |
| Lasius (Lasius) niger Linnaeus, 1758 | Black Garden Ant |
| Lasius (Lasius) pallitarsis Provancher, 1881 | Subterranean Aphid-Tending Ant |
| Lathrolestes platynus Davis, 1897 | |
| Leptothorax (Leptothorax) muscorum Nylander, 1846 | Horseshoe crabs |
| Linepithema humile Mayr, 1868 | Argentine ant |
| Megachile (Argyropile) parallela Smith, 1853 | Parallel Leaf-cutter Bee |
| Megachile (Chelostomoides) angelarum Cockerell, 1902 | |
| Megachile (Litomegachile) brevis (Say, 1837) | ⇒ Megachile pseudobrevis Mitchell, 1934 |
| Megachile (Megachile) montivaga Cresson, 1878 | Silver-tailed Petal-cutter Bee |
| Megachile (Megachiloides) casadae Cockerell, 1898 | |
| Megachile (Megachiloides) hookeri Cockerell, 1915 | |
| Megachile (Megachiloides) subnigra Cresson, 1879 | |
| Megachile (Neoeutrichaea) rotundata Fabricius, 1793 | Alfalfa leaf-cutter bee |
| Megachile (Sayapis) fidelis Cresson, 1878 | Faithful leafcutting bee |
| Megachile (Sayapis) policaris Say, 1831 | |
| Megachile (Xanthosarus) frigida Smith, 1853 | Frigid Leaf-cutter Bee |
| Megachile subanograe Mitchell, 1934 | |
| Melissodes (Callimelissodes) glenwoodensis Cockerell, 1905 | |
| Melissodes (Eumelissodes) coreopsis Robertson, 1905 | Subterranean clover |
| Melissodes (Eumelissodes) montana Cresson, 1878 | |
| Melissodes (Eumelissodes) pallidisignata Cockerell, 1905 | |
| Melissodes (Eumelissodes) semilupina Cockerell, 1905 | |
| Melissodes (Eumelissodes) tristis Cockerell, 1894 | |
| Melissodes (Tachymelissodes) dagosa Cockerell, 1909 | |
| Mesochorus nematus Schwenke, 2004 | |
| Monomorium minimum (Buckley, 1867) | ⇒ Monomorium cyaneum Wheeler, 1914 |
| Monomorium monomorium Bolton, 1987 | White-crest tellin |
| Monomorium opacior Forel, 1913 | |
| Myrmica americana Weber, 1939 | |
| Myrmica brevispinosa Wheeler, 1917 | Sickle jackknife |
| Myrmica fracticornis Forel, 1901 | Round combshell |
| Myrmica incompleta Provancher, 1881 | Incomplete Ant |
| Myrmica lobifrons (Pergande, 1900) | ⇒ Myrmica lobicornis Nylander, 1846 |
| Nomada belfragei Cresson, 1878 | |
| Nomada mutans Cockerell, 1910 | |
| Osmia (Cephalosmia) montana Cresson, 1864 | |
| Osmia (Diceratosmia) subfasciata Cresson, 1872 | |
| Osmia (Melanosmia) brevis Cresson, 1864 | |
| Osmia (Melanosmia) bruneri Cockerell, 1897 | |
| Osmia (Melanosmia) gaudiosa Cockerell, 1907 | |
| Osmia (Melanosmia) texana Cresson, 1872 | Texas Mason Bee |
| Osmia (Osmia) lignaria Say, 1837 | Blue orchard bee |
| Osmia (Osmia) ribifloris Cockerell, 1900 | Blueberry bee |
| Osmia trevoris Cockerell, 1897 | |
| Oxybelus emarginatus Say, 1837 | Vegetable hummingbird |
| Paridris stenus (Kononova & P..., 2000) | ⇒ Paridris stena |
| Perdita (Perdita) oregonensis Timberlake, 1929 | |
| Perdita (Perdita) wilmattae Cockerell, 1906 | |
| Perdita adjuncta Timberlake, 1958 | |
| Perdita cruciferarum Timberlake, 1968 | |
| Perdita tessellata Timberlake, 1964 | |
| Pheidole bicarinata Mayr, 1870 | Atlantic diplodon |
| Pheidole hyatti Emery, 1895 | Many-line lucine |
| Pheidole paiute Gregg”Ž, 1959 | |
| Philanthus gibbosus Fabricius, 1775 | Bee wolf |
| Pogonomyrmex barbatus Smith, 1858 | Agricultural ant |
| Pogonomyrmex imberbiculus Wheeler, 1902 | |
| Pogonomyrmex maricopa Wheeler, 1914 | Maricopa harvester ant |
| Pogonomyrmex occidentalis Cresson, 1865 | Western harvester ant |
| Pogonomyrmex salinus Olsen, 1934 | Calico clam |
| Prionyx canadensis Provancher, 1887 | |
| Solenopsis (Solenopsis) aurea Wheeler, W.M., 1906 | |
| Solenopsis (Solenopsis) xyloni McCook, 1879 | Southern fire ant |
| Stelis (Stelidium) ashmeadiella | |
| Stelis (Stelis) carnifex Cockerell, 1911 | |
| Stelis (Stelis) montana Cresson, 1864 | |
| Tapinoma sessile Say, 1836 | Coconut ant |
| Tetraloniella (Tetraloniella) eriocarpi Cockerell, 1898 | |
| Tetramorium caespitum Linnaeus, 1758 | Carpenter carditid |
| Tetramorium immigrans (Linnaeus, 1758) | ⇒ Tetramorium caespitum Linnaeus, 1758 |
| Tetrastichus auplopus Burks, 1963 | |
| Triepeolus texanus Cresson, 1878 | |
