| Agapostemon (Agapostemon) sericeus Förster, 1771 | Silky Agapostemon |
| Agapostemon (Agapostemon) texanus Cresson, 1872 | Green sweat bee |
| Agapostemon (Agapostemon) virescens Fabricius, 1775 | Bicolored Agapostemon |
| Alysson triangulifer Provancher, 1887 | Lens pod milkvetch |
| Ammophila procera Dahlbom, 1843 | Common Thread Waisted Wasp |
| Andrena (Andrena) carolina Viereck, 1909 | Carolina Miner Bee |
| Andrena (Andrena) clarkella Kirby, 1802 | Clark'S Mining Bee |
| Andrena (Andrena) macoupinensis Robertson, 1900 | Macoupin County Miner Bee |
| Andrena (Andrena) mandibularis Robertson, 1892 | Creeping clover |
| Andrena (Andrena) rufosignata Cockerell, 1902 | Brown-Fovea Miner |
| Andrena (Andrena) thaspii Graenicher, 1903 | Parsnip Miner Bee |
| Andrena (Andrena) tridens Robertson, 1902 | Trident Miner Bee |
| Andrena (Callandrena) asteris Robertson, 1891 | Aster Andrena |
| Andrena (Callandrena) helianthi Robertson, 1891 | Sunflower Andrena |
| Andrena (Cnemidandrena) hirticincta Provancher, 1888 | Freckled milkvetch |
| Andrena (Cnemidandrena) nubecula Smith, 1853 | Cloudy-Winged Mining Bee |
| Andrena (Holandrena) cressonii Robertson, 1891 | Cresson'S Mining Bee |
| Andrena (Larandrena) miserabilis Cresson, 1872 | Mining bee |
| Andrena (Leucandrena) erythronii Robertson, 1891 | Trout-lily Andrena |
| Andrena (Melandrena) barbara Bouseman & L..., 1979 | Barbara´s Andrena |
| Andrena (Melandrena) carlini Cockerell, 1901 | Carlin'S Mining Bee |
| Andrena (Melandrena) commoda Smith, 1879 | Advantaged Miner Bee |
| Andrena (Melandrena) dunningi Cockerell, 1898 | Dunning'S Miner |
| Andrena (Melandrena) hilaris Smith, 1853 | Stout tagelus |
| Andrena (Melandrena) nivalis Smith, 1853 | Snowy Andrena |
| Andrena (Melandrena) sayi Robertson, 1891 | |
| Andrena (Melandrena) vicina Smith, 1853 | Neighborly Andrena |
| Andrena (Micrandrena) neonana Viereck, 1917 | Yellow screwstem |
| Andrena (Micrandrena) personata Robertson, 1897 | |
| Andrena (Plastandrena) crataegi Robertson, 1893 | Hawthorn Andrena |
| Andrena (Ptilandrena) erigeniae Robertson, 1891 | Spring Beauty Andrena |
| Andrena (Rhacandrena) brevipalpis Cockerell, 1930 | Short-Tongued Miner Bee |
| Andrena (Scrapteropsis) alleghaniensis Viereck, 1907 | Alleghany Andrena |
| Andrena (Scrapteropsis) fenningeri Viereck, 1922 | |
| Andrena (Scrapteropsis) imitatrix Cresson, 1872 | Imitator Miner Bee |
| Andrena (Simandrena) nasonii Robertson, 1895 | Nason'S Mining Bee |
| Andrena (Trachandrena) forbesii Robertson, 1891 | Forbes' Mining Bee |
| Andrena (Trachandrena) heraclei Robertson, 1897 | |
| Andrena (Trachandrena) hippotes Robertson, 1895 | Hippotes'S Miner Bee |
| Andrena (Trachandrena) miranda Smith, 1879 | Bunchberry dogwood |
| Andrena (Trachandrena) nuda Robertson, 1891 | Nude Andrena |
| Andrena (Trachandrena) rehni Viereck, 1907 | |
| Andrena (Trachandrena) rugosa Robertson, 1891 | Rugose Andrena |
| Andrena (Trachandrena) spiraeana Robertson, 1895 | Goatsbeard Miner Bee |
| Andrena (Trachandrena) virginiana Mitchell, 1960 | Virginia Andrena |
| Anthidium (Anthidium) manicatum Linnaeus, 1758 | Continental Wool-carder Bee |
| Anthophora (Clisodon) terminalis Cresson, 1869 | Orange-Tipped Wood-Digger Bee |
| Anthophora (Lophanthophora) ursina Cresson, 1869 | |
| Anthophora (Melea) abrupta Say, 1837 | Vegetable hummingbird |
| Apis (Apis) mellifera Linnaeus, 1758 | Drone-Bee |
| Astata occidentalis Cresson, 1881 | |
| Astata unicolor (Say, 1824) | ⇒ Astata nigra F. Smith, 1856 |
| Augochlora (Augochlora) pura Say, 1837 | Augochlora Sweat Bee |
| Augochlorella aurata Smith, 1853 | Golden Sweat Bee |
| Augochlorella persimilis Viereck, 1910 | |
| Augochloropsis (Paraugochloropsis) metallica Fabricius, 1793 | Green Metallic Sweat Bee |
| Bombus (Bombias) auricomus Robertson, 1903 | Black and gold bumble bee |
| Bombus (Bombus) affinis Cresson, 1863 | Rusty patch bumble bee |
| Bombus (Bombus) nevadensis Cresson, 1874 | Nevada bumble bee |
| 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) 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 (Psithyrus) ashtoni Cresson, 1864 | Ashton cuckoo bumble bee |
| Bombus (Psithyrus) citrinus Smith, 1854 | Lemon cuckoo bumble bee |
| Bombus (Psithyrus) fernaldae (Franklin, 1911) | ⇒ Bombus flavidus Eversmann, 1852 |
| Bombus (Psithyrus) suckleyi Greene, 1860 | Suckley Cuckoo Bumble Bee |
| Bombus (Pyrobombus) bimaculatus Cresson, 1863 | Two-spotted Bumble Bee |
| Bombus (Pyrobombus) huntii Greene, 1860 | Hunt bumble bee |
| Bombus (Pyrobombus) impatiens Cresson, 1863 | Common eastern bumble bee |
| Bombus (Pyrobombus) perplexus (Cresson, 1863) | ⇒ Bombus soroeensis Fabricius, 1776 |
| 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 (Separatobombus) griseocollis (DeGeer, 1773) | ⇒ Bombus griseocollis De Geer, 1773 |
| Bombus (Subterraneobombus) borealis Kirby, 1837 | Northern amber bumble bee |
| Calliopsis (Calliopsis) andreniformis Smith, 1853 | Eastern Calliopsis Bee |
| Ceratina (Zadontomerus) calcarata Robertson, 1900 | Spurred Carpenter Bee |
| Ceratina (Zadontomerus) strenua Smith, 1879 | Bunchberry dogwood |
| Cerceris clypeata (Dahlbom, 1844) | ⇒ Cerceris prominens Banks, 1912 |
| Chalybion californicum Saussure, 1867 | Blue mud dauber |
| Coelioxys (Boreocoelioxys) moesta Cresson, 1864 | |
| Coelioxys (Boreocoelioxys) octodentata Say, 1824 | Eight-toothed Cuckoo-leaf-cutter |
| Coelioxys (Boreocoelioxys) rufitarsis Smith, 1854 | Red-Footed Cuckoo Leaf-Cutter Bee |
| Coelioxys (Boreocoelioxys) sayi Robertson, 1897 | Say'S Cuckoo Leaf-Cutter Bee |
| Colletes inaequalis Say, 1837 | Polyester bee |
| Colletes latitarsis Robertson, 1891 | Broad-footed Cellophane Bee |
| Crossocerus (Blepharipus) leucostoma Linnaeus, 1758 | White Mouthed Digger Wasp |
| Ectemnius (Clytochrysus) ruficornis (Zetterstedt, 1838) | ⇒ Ectemnius arcuatus Say, 1837 |
| Ectemnius (Hypocrabro) continuus Fabricius, 1804 | Common Ectemnius |
| Ectemnius (Hypocrabro) decemmaculatus Say, 1823 | |
| Elaphropoda bembidion Lieftinck, 1966 | Cascade cave amphipod |
| Epeolus bifasciatus Cresson, 1864 | Two-Banded Cellophane-Cuckoo |
| Epeolus canadensis Mitchell, 1962 | Canadian Cellophane-Cuckoo Bee |
| Epeolus scutellaris Say, 1824 | Notch-Backed Cellophane-Cuckoo Bee |
| Eucera (Synhalonia) atriventris Smith, 1854 | |
| Gorytes simillimus Smith, 1856 | |
| Habropoda laboriosa Fabricius, 1804 | Blueberry Habropoda |
| 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 epichlorops Cockerell, 1946 | |
| Heriades (Neotrypetes) carinatus Cresson, 1864 | |
| Holcopasites calliopsidis Linsley, 1943 | Calliopsis Cuckoo Nomad Bee |
| Hoplitis (Alcidamea) pilosifrons Cresson, 1864 | Hairy-Fronted Small-Mason |
| Hoplitis (Monumetha) spoliata Provancher, 1888 | Dilated-Horned Small-Mason |
| Hylaeus (Hylaeus) annulatus Linnaeus, 1758 | Annulate Masked Bee |
| Hylaeus (Hylaeus) verticalis Cresson, 1869 | Vertical Masked Bee |
| Hylaeus (Prosopis) affinis Smith, 1853 | Eastern Masked Bee |
| Hylaeus (Prosopis) modestus Say, 1837 | Modest Masked Bee |
| Isodontia mexicana Saussure, 1867 | Grass-carrying wasp |
| Isodontia philadelphica Lepeletier d..., 1845 | |
| Lasioglossum (Dialictus) coeruleum Robertson, 1893 | Deep-Blue Sweat Bee |
| Lasioglossum (Dialictus) cressonii Robertson, 1890 | Cresson'S Dialictus |
| Lasioglossum (Dialictus) imitatum Smith, 1853 | Bristle Sweat Bee |
| Lasioglossum (Dialictus) laevissimum Smith, 1853 | Neighbor tagelus |
| Lasioglossum (Dialictus) lineatulum Crawford, 1906 | Lineated Metallic Sweat Bee |
| Lasioglossum (Dialictus) nigroviride Graenicher, 1911 | Black-and-Green Dialictus Sweat Bee |
| Lasioglossum (Dialictus) nymphaearum (Robertson, 1895) | ⇒ Lasioglossum oceanicum Cockerell, 1916 |
| Lasioglossum (Dialictus) oblongum Lovell, 1905 | Oblong Sweat Bee |
| Lasioglossum (Dialictus) pilosum Smith, 1853 | Hairy Metallic-Sweat Bee |
| Lasioglossum (Dialictus) subviridatum Cockerell, 1938 | Western Green Sweat Bee |
| Lasioglossum (Dialictus) versans Lovell, 1905 | Dull Metallic-Sweat Bee |
| Lasioglossum (Dialictus) versatum Robertson, 1902 | Experienced Sweat Bee |
| Lasioglossum (Evylaeus) quebecense Crawford, 1907 | Quebec Sweat Bee |
| Lasioglossum (Homalictus) acuminatum McGinley, 1986 | Pointed Sweat Bee |
| Lasioglossum (Lasioglossum) coriaceum Smith, 1853 | Leathery Sweat Bee |
| Lasioglossum (Lasioglossum) fuscipenne Smith, 1853 | Brown-Winged Sweat Bee |
| Lasioglossum (Lasioglossum) leucozonium Schrank, 1781 | Sweat Bee |
| Lasioglossum (Lasioglossum) zonulum Smith, 1848 | Banded Sweat Bee |
| Lasioglossum birkmanni Crawford, 1906 | Birkmann'S Sweat Bee |
| Lasioglossum lasioglossum Strand, 1913 | |
| Lasioglossum planatum Lovell, 1905 | Flattened Sweat Bee |
| Lestica producticollis Packard, 1866 | |
| Lyroda subita Say, 1837 | Vegetable hummingbird |
| Megachile (Eutricharaea) apicalis (Spinola, 1808) | ⇒ Megachile analis Nylander, 1852 |
| Megachile (Litomegachile) brevis (Say, 1837) | ⇒ Megachile pseudobrevis Mitchell, 1934 |
| Megachile (Litomegachile) mendica Cresson, 1878 | Flat-tailed Leaf-cutter Bee |
| Megachile (Litomegachile) texana Cresson, 1878 | Texas Leaf-cutter Bee |
| Megachile (Megachile) inermis Provancher, 1888 | Freckled milkvetch |
| Megachile (Megachile) montivaga Cresson, 1878 | Silver-tailed Petal-cutter Bee |
| Megachile (Megachile) relativa Cresson, 1878 | Golden-Tailed Leafcutter |
| Megachile (Neoeutrichaea) rotundata Fabricius, 1793 | Alfalfa leaf-cutter bee |
| Megachile (Sayapis) pugnata Say, 1837 | Pugnacious Leaf-cutter Bee |
| Megachile (Xanthosarus) addenda Cresson, 1878 | Cranberry Leafcutter |
| Megachile (Xanthosarus) frigida Smith, 1853 | Frigid Leaf-cutter Bee |
| Megachile (Xanthosarus) latimanus Say, 1823 | Broad-handed Leaf-cutter Bee |
| Melissodes (Eumelissodes) agilis Cresson, 1878 | Agile Long-horned Bee |
| Melissodes (Eumelissodes) boltoniae Robertson, 1905 | Subterranean clover |
| Melissodes (Eumelissodes) denticulata Smith, 1854 | |
| Melissodes (Eumelissodes) trinodis Robertson, 1901 | Dark-Veined Longhorn |
| Melissodes (Heliomelissodes) desponsa Smith, 1854 | Thistle Long-horned Bee |
| Melissodes (Melissodes) bimaculata Lepeletier, 1825 | Longhorn Bee |
| Mimumesa nigra Packard, 1867 | |
| Nomada (Gnathias) bella Cresson, 1863 | Belle Nomad Bee |
| Nomada articulata Smith, 1854 | Articulated Nomad |
| Nomada cressonii Morawitz, 1877 | Cresson'S Nomad |
| Osmia (Helicosmia) coloradensis Cresson, 1878 | Colorado Osmia |
| Osmia (Helicosmia) georgica Cresson, 1878 | Georgia Mason |
| Osmia (Melanosmia) atriventris Cresson, 1864 | Maine blueberry bee |
| Osmia (Melanosmia) bucephala Cresson, 1864 | Bufflehead Mason Bee |
| Osmia (Melanosmia) inspergens Lovell & Coc..., 1907 | Shiny-Faced Mason Bee |
| Osmia (Melanosmia) proxima Cresson, 1864 | |
| Osmia (Melanosmia) pumila Cresson, 1864 | Dwarf Mason Bee |
| Osmia (Osmia) lignaria Say, 1837 | Blue orchard bee |
| Osmia purpurea Cresson, 1864 | |
| Pemphredon (Cemonus) inornata Say, 1824 | Shuckard's Wasp |
| Peponapis (Peponapis) pruinosa Say, 1837 | Eastern cucurbit bee |
| Sceliphron (Sceliphron) caementarium (Drury, 1773) | ⇒ Chalybion ammophiloides Hensen, 1988 |
| Sphecius speciosus Drury, 1773 | Cicada hawk |
| Sphecodes galerus Lovell & Coc..., 1907 | Capped Cuckoo Sweat Bee |
| Sphex ichneumoneus Linnaeus, 1758 | Great Golden Digger |
| Sphex pensylvanicus Linnaeus, 1763 | Chaparral bushmallow |
| Stelis (Stelis) lateralis Cresson, 1864 | Spot-Sided Dark Bee |
| Tachysphex terminatus (Smith, 1856) | ⇒ Tachysphex similis Rohwer, 1910 |
| Triepeolus lunatus Say, 1824 | |
| Trigonopsis cyclocephala F. Smith, 1873 | |
| Trypoxylon (Trypoxylon) carinatum Say, 1837 | Vegetable hummingbird |
| Trypoxylon (Trypoxylon) frigidum Smith, 1856 | |
| Xylocopa (Xylocopoides) virginica Linnaeus, 1771 | Carpenter bee |
