| Afranthidium (Immanthidium) sjoestedti Friese, 1909 | |
| Afranthidium abdominale Friese, 1904 | |
| Afrostelis aethiopica Friese, 1925 | |
| Aglaoapis tridentata Nylander, 1848 | |
| Anthidiellum (Anthidiellum) strigatum Panzer, 1805 | Cancellate semele |
| Anthidium (Anthidium) diadema Latreille, 1809 | Apache bush |
| Anthidium (Anthidium) emarginatum Say, 1824 | |
| Anthidium (Anthidium) florentinum Fabricius, 1775 | Wool carder bee |
| Anthidium (Anthidium) manicatum Linnaeus, 1758 | Continental Wool-carder Bee |
| Anthidium (Anthidium) mormonum Cresson, 1878 | |
| Anthidium (Anthidium) punctatum Latreille, 1809 | Apache bush |
| Anthidium (Anthidium) septemspinosum Lepeletier, 1841 | |
| Anthidium (Anthidium) tenuiflorae Cockerell, 1907 | |
| Anthidium (Proanthidium) oblongatum Illiger, 1806 | Oblong wool carder bee |
| Anthidium byssinum Panzer, 1798 | |
| Anthidium lituratum Mavromoustakis, 1954 | |
| Anthidium nanum Mocsáry, 1879 | Bee |
| Anthidium septendentatum | |
| Anthidium severini Vachal, 1903 | |
| Anthidium strigatum (Panzer, 1805) | ⇒ Anthidiellum strigatum Panzer, 1805 |
| Chalicodoma (Pseudomegachile) ericetorum (Lepeletier, 1841) | ⇒ Megachile ericetorum Lepeletier, 1841 |
| Chelostoma (Chelostoma) florisomne (Linnaeus, 1758) | ⇒ Chelostoma campanularum Kirby, 1802 |
| Chelostoma (Foveosmia) campanularum Kirby, 1802 | Carpenter bee |
| Chelostoma (Gyrodromella) rapunculi Lepeletier, 1841 | Rampion Scissor Bee |
| Chelostoma confusum Benoist, 1934 | |
| Chelostoma distinctum Stoeckhert, 1929 | |
| Chelostoma fuliginosum Panzer, 1798 | |
| Chelostoma nasutum Perez, 1895 | Chrysanthemum gall midge |
| Chelostoma orientale Schletterer, 1890 | Convergent lady beetle |
| Coelioxys (Acrocoelioxys) producta Cresson, 1865 | |
| Coelioxys (Allocoelioxys) afra Lepeletier, 1841 | Short Sharp-tail Bee |
| Coelioxys (Allocoelioxys) echinata Förster, 1853 | |
| Coelioxys (Allocoelioxys) emarginata Förster, 1853 | |
| Coelioxys (Coelioxys) aurolimbata Förster, 1853 | |
| Coelioxys (Coelioxys) conoidea (Illiger, 1806) | ⇒ Coelioxys inermis Kirby, 1802 |
| Coelioxys (Coelioxys) elongata Lepeletier, 1841 | Dull-Vented Sharp-Tail |
| Coelioxys (Coelioxys) inermis Kirby, 1802 | Shiny-Vented Sharp-Tail |
| Coelioxys (Coelioxys) mandibularis Nylander, 1848 | Blue Ridge Mountain amphipod |
| Coelioxys (Coelioxys) quadridentata Linnaeus, 1758 | Four-toothed sharp-tailed bee |
| Coelioxys (Coelioxys) rufescens Lepeletier &..., 1825 | Rufescent Sharp-Tail |
| Coelioxys (Coelioxys) sodalis Cresson, 1878 | Comrade Cuckoo Leafcutter Bee |
| Coelioxys afer Lepeletier, 1841 | |
| Coelioxys alata Förster, 1853 | |
| Coelioxys alatus Förster, 1853 | |
| Coelioxys aurifrons Smith, 1854 | |
| Coelioxys aurolimbatus Förster, 1853 | Southwestern Virginia cave amphipod |
| Coelioxys conoideus Illiger, 1806 | Large Sharp-tail Bee |
| Coelioxys elongatus Lepeletier, 1841 | Dull-vented Sharp-tail Bee |
| Coelioxys setosa Friese, 1904 | |
| Coelioxys squamosissima Pasteels, 1968 | |
| Coelioxys tridentata (Fabricius, 1775) | ⇒ Aglaoapis tridentata Nylander, 1848 |
| Dianthidium (Dianthidium) subparvum Swenk, 1914 | |
| Dioxys tridentata (Nylander, 1848) | ⇒ Aglaoapis tridentata Nylander, 1848 |
| Eoanthidium rothschildi Vachal, 1909 | |
| Heriades (Heriades) truncorum Linnaeus, 1758 | Large-headed Resin Bee |
| Heriades capicola Strand, 1912 | |
| Heriades rubicola (Perez, 1890) | ⇒ Heriades rubicolus Perez, 1890 |
| Heriades wellmani Cockerell, 1908 | |
| Hoplitis (Alcidamea) claviventris Thomson, 1872 | Welted lesser mason bee |
| Hoplitis fulgida platyura | |
| Hoplitis (Alcidamea) leucomelana Kirby, 1802 | Black and white lesser mason bee |
| Hoplitis (Alcidamea) pilosifrons Cresson, 1864 | Hairy-Fronted Small-Mason |
| Hoplitis (Anthocopa) papaveris Latreille, 1799 | Canada Whiteface |
| Hoplitis (Anthocopa) villosa Schenck, 1853 | |
| Hoplitis (Cyrtosmia) hypocrita Cockerell, 1906 | |
| Hoplitis (Hoplitis) adunca Panzer, 1798 | Viper's Bugloss Mason Bee |
| Hoplitis (Hoplitis) anthocopoides Schenck, 1853 | Mason Bee |
| Hoplitis acuticornis Dufour & Perris, 1840 | |
| Hoplitis brachypogon brachypogon Perez, 1879 | |
| Hoplitis mitis Nylander, 1852 | |
| Hoplitis ravouxi Perez, 1902 | |
| Hoplitis tridentata Dufour & Perris, 1840 | |
| Hoplosmia (Hoplosmia) spinulosa (Kirby, 1802) | ⇒ Osmia spinulosa Kirby, 1802 |
| Icteranthidium laterale Latreille, 1809 | Cancellate semele |
| Megachile (Amegachile) bituberculata Ritsema, 1880 | |
| Megachile (Amegachile) nasalis Smith, 1879 | Bunchberry dogwood |
| Megachile (Argyropile) parallela Smith, 1853 | Parallel Leaf-cutter Bee |
| Megachile (Callomegachile) rufipennis Fabricius, 1793 | |
| Megachile (Callomegachile) rufipes Fabricius, 1781 | |
| Megachile (Callomegachile) rufiventris Guérin-Ménev..., 1834 | |
| Megachile (Callomegachile) torrida Smith, 1853 | Stout tagelus |
| Megachile (Chalicodoma) parietina Geoffroy, 1785 | Black Mud Bee |
| Megachile (Chalicodoma) rufescens Perez, 1879 | |
| Megachile (Chelostomoides) exilis Cresson, 1872 | Slender Resin Bee |
| Megachile (Chelostomoides) georgica Cresson, 1878 | |
| Megachile (Creightonella) cognata Smith, 1853 | Stout tagelus |
| Megachile (Creightonella) ianthoptera Smith, 1853 | Bunchberry dogwood |
| Megachile (Delomegachile) willughbiella Kirby, 1802 | |
| Megachile (Eutricharaea) apicalis (Spinola, 1808) | ⇒ Megachile analis Nylander, 1852 |
| Megachile (Eutricharaea) argentata Fabricius, 1793 | |
| Megachile (Eutricharaea) basalis Smith, 1853 | Stout tagelus |
| Megachile (Eutricharaea) dorsalis (Perez, 1879) | ⇒ Megachile leachella Curtis, 1828 |
| Megachile (Eutricharaea) ekuivella (Cockerell, 1909) | ⇒ Megachile cordata Smith, 1879 |
| Megachile (Eutricharaea) gratiosa Smith, 1853 | |
| Megachile (Eutricharaea) leachella Curtis, 1828 | Megachile dorsalis |
| Megachile (Eutricharaea) leucomalla Gerstäcker, 1869 | |
| Megachile (Eutricharaea) meadewaldoi Brauns, 1912 | |
| Megachile (Eutricharaea) pilidens Alfken, 1924 | |
| Megachile (Eutricharaea) rotundata Fabricius, 1787 | Alfafa leafcutting bee |
| Megachile (Eutricharaea) semiflava (Cockerell, 1937) | ⇒ Megachile cordata Smith, 1879 |
| Megachile (Eutricharaea) stellarum (Cockerell, 1920) | ⇒ Megachile malangensis Friese, 1904 |
| Megachile (Eutricharaea) venusta Smith, 1853 | Stout tagelus |
| Megachile (Gronoceras) bombiformis Gerstäcker, 1857 | |
| Megachile (Gronoceras) cincta Fabricius, 1781 | |
| Megachile (Gronoceras) felina Gerstäcker, 1857 | |
| Megachile (Hackeriapis) monkmani Rayment, 1935 | |
| 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) centuncularis Linnaeus, 1758 | Common leaf-cutter bee |
| Megachile (Megachile) lapponica Thomson, 1872 | Alfilaree |
| Megachile (Megachile) ligniseca Kirby, 1802 | Wood-Carving Leaf-Cutter Bee |
| Megachile (Megachile) melanopyga Cockerell, 1909 | |
| Megachile (Megachile) pilicrus Morawitz, 1877 | |
| Megachile (Megachile) relativa Cresson, 1878 | Golden-Tailed Leafcutter |
| Megachile (Megachile) versicolor Smith, 1844 | Brown-Footed Leaf-Cutter |
| Megachile (Neoeutrichaea) rotundata Fabricius, 1793 | Alfalfa leaf-cutter bee |
| Megachile (Paracella) chrysopogon Vachal, 1910 | |
| Megachile (Paracella) coelostoma (Cockerell, 1932) | ⇒ Megachile barbata Smith, 1853 |
| Megachile (Pseudomegachile) ericetorum Lepeletier, 1841 | Banded Mud Bee |
| Megachile (Pseudomegachile) flavipes Spinola, 1838 | |
| Megachile (Xanthosarus) analis Nylander, 1852 | |
| Megachile (Xanthosarus) circumcincta Kirby, 1802 | Black-headed leaf-cutter bee |
| Megachile (Xanthosarus) giliae (Cockerell, 1906) | ⇒ Megachile circumcincta Kirby, 1802 |
| Megachile (Xanthosarus) lagopoda Linnaeus, 1761 | |
| Megachile (Xanthosarus) maritima Kirby, 1802 | Coast Leaf-Cutter |
| Megachile (Xanthosarus) melanophaea Smith, 1853 | Black-and-gray Leaf-cutter Bee |
| Megachile (Xanthosarus) willughbiella (Kirby, 1802) | ⇒ Megachile willughbiella Kirby, 1802 |
| Megachile albisecta Klug, 1817 | |
| Megachile albocincta Radoszkowski, 1874 | |
| Megachile alpicola Alfken, 1924 | |
| Megachile anatolica Rebmann, 1968 | |
| Megachile aridissima Cockerell, 1937 | |
| Megachile atratula (Rebmann, 1968) | ⇒ Megachile concinna Smith, 1853 |
| Megachile chrysognatha Cockerell, 1943 | |
| Megachile eurimera Smith, 1854 | Stout tagelus |
| Megachile foersteri Gerstäcker, 1869 | |
| Megachile genalis Morawitz, 1880 | |
| Megachile maackii Radoszkowski, 1874 | |
| Megachile maxillosa Guérin-Ménev..., 1845 | |
| Megachile melanogaster Eversmann, 1852 | |
| Megachile nigriventris Schenck, 1870 | |
| Megachile nigrocaudata Friese, 1903 | |
| Megachile octosignata Nylander, 1852 | |
| Megachile pyrenaea Perez, 1890 | |
| Megachile schmiedeknechti Costa, 1884 | |
| Megachile villosa (Fabricius, 1775) | ⇒ Hoplitis villosa Schenck, 1853 |
| Megachile walkeri Dalla Torre, 1896 | |
| Osmia (Acanthosmioides) longula Cresson, 1864 | |
| Osmia (Acanthosmioides) unca Michener, 1937 | |
| Osmia (Allosmia) rufohirta Latreille, 1811 | |
| Osmia (Cephalosmia) californica Cresson, 1864 | |
| Osmia (Cephalosmia) montana Cresson, 1864 | |
| Osmia (Chalcosmia) caerulescens Linnaeus, 1758 | |
| Osmia (Chalcosmia) leaiana Kirby, 1802 | |
| Osmia (Chalcosmia) niveata Fabricius, 1804 | |
| Osmia (Helicosmia) aurulenta Panzer, 1799 | Gold-Fringed Mason Bee |
| Osmia (Helicosmia) caerulescens (Linnaeus, 1758) | ⇒ Osmia caerulescens Linnaeus, 1758 |
| Osmia (Helicosmia) coerulescens Linnaeus, 1758 | |
| Osmia (Helicosmia) leaiana (Kirby, 1802) | ⇒ Osmia leaiana Kirby, 1802 |
| Osmia (Helicosmia) melanogaster Spinola, 1808 | Chrysanthemum gall midge |
| Osmia (Helicosmia) niveata (Fabricius, 1804) | ⇒ Osmia niveata Fabricius, 1804 |
| Osmia (Melanosmia) albolateralis Cockerell, 1906 | |
| Osmia (Melanosmia) brevis Cresson, 1864 | |
| Osmia (Melanosmia) bucephala Cresson, 1864 | Bufflehead Mason Bee |
| Osmia (Melanosmia) calla Cockerell, 1897 | |
| Osmia (Melanosmia) inermis Zetterstedt, 1838 | Mountain mason bee |
| Osmia (Melanosmia) juxta Cresson, 1864 | |
| Osmia (Melanosmia) maritima Friese, 1885 | |
| Osmia (Melanosmia) parietina (Curtis, 1828) | ⇒ Osmia inermis Zetterstedt, 1838 |
| Osmia (Melanosmia) pilicornis Smith, 1846 | Fringe Horned Mason Bee |
| Osmia (Melanosmia) simillima Smith, 1853 | Similar Mason Bee |
| Osmia (Melanosmia) uncinata (Gerstäcker, 1869) | ⇒ Osmia unca Michener, 1937 |
| Osmia (Melanosmia) xanthomelana Kirby, 1802 | Cliff Mason Bee |
| Osmia (Metallinella) brevicornis (Fabricius, 1798) | ⇒ Hoplitis brevicornis Morawitz, 1880 |
| Osmia (Neosmia) bicolor Schrank, 1781 | Red-tailed Mason Bee |
| Osmia (Osmia) cerinthidis Morawitz, 1876 | |
| Osmia (Osmia) cornuta Latreille, 1805 | Mason bee |
| Osmia (Osmia) emarginata Lepeletier, 1841 | |
| Osmia (Osmia) rufa (Linnaeus, 1758) | ⇒ Osmia bicornis Linnaeus, 1758 |
| Osmia (Pyrosmia) gallarum Spinola, 1808 | |
| Osmia adunca (Panzer, 1798) | ⇒ Hoplitis adunca Panzer, 1798 |
| Osmia andrenoides Spinola, 1808 | |
| Osmia anthocopoides (Schenck, 1853) | ⇒ Hoplitis anthocopoides Schenck, 1853 |
| Osmia bicornis Linnaeus, 1758 | Chrysanthemum gall midge |
| Osmia claviventris (Thomson, 1872) | ⇒ Hoplitis claviventris Thomson, 1872 |
| Osmia fulviventris (Panzer, 1798) | ⇒ Osmia niveata Fabricius, 1804 |
| Osmia leucomelana Kirby, 1802 | Large Welted Lesser-Mason |
| Osmia mustelina Gerstäcker, 1869 | |
| Osmia papaveris (Latreille, 1799) | ⇒ Hoplitis papaveris Latreille, 1799 |
| Osmia pentstemonis Cockerell, 1906 | |
| Osmia ravouxi (Perez, 1902) | ⇒ Hoplitis ravouxi Perez, 1902 |
| Osmia spinulosa Kirby, 1802 | Spined Mason Bee |
| Osmia tridentata (DUFOUR & PÉREZ, 1840) | ⇒ Hoplitis tridentata Dufour & Perris, 1840 |
| Osmia villosa (Schenck, 1853) | ⇒ Hoplitis villosa Schenck, 1853 |
| Plesianthidium (Carinanthidium) cariniventre Friese, 1904 | |
| Pseudoanthidium (Pseudoanthidium) scapulare Latreille, 1809 | Cancellate semele |
| Pseudoanthidium nanum Mocsáry, 1879 | |
| Stelis (Protostelis) signata Latreille, 1809 | Cancellate semele |
| Stelis (Stelis) phaeoptera Kirby, 1802 | Plain dark bee |
| Stelis breviuscula Nylander, 1848 | Little dark bee |
| Stelis minima Schenck, 1861 | |
| Stelis minuta Lepeletier &..., 1825 | |
| Stelis odontopyga Noskiewicz, 1926 | |
| Stelis ornatula Klug, 1807 | Spotted dark bee |
| Stelis punctulatissima Kirby, 1802 | Banded dark bee |
| Trachusa (Trachusa) byssina Panzer, 1798 | |
| Trachusa laticeps Morawitz, 1873 | |
