| Anthidiellum (Anthidiellum) breviusculum Perez, 1890 | |
| Anthidiellum (Anthidiellum) strigatum Panzer, 1805 | Cancellate semele |
| Anthidiellum strigatum strigatum Panzer, 1805 | |
| Anthidium (Anthidium) atripes Cresson, 1879 | |
| Anthidium (Anthidium) cingulatum Latreille, 1809 | Apache bush |
| Anthidium (Anthidium) cockerelli Schwarz, 1928 | |
| Anthidium (Anthidium) diadema Latreille, 1809 | Apache bush |
| Anthidium (Anthidium) florentinum Fabricius, 1775 | Wool carder bee |
| Anthidium (Anthidium) loti Perris, 1852 | |
| Anthidium (Anthidium) manicatum Linnaeus, 1758 | Continental Wool-carder Bee |
| Anthidium (Anthidium) montanum Morawitz, 1864 | |
| Anthidium (Anthidium) paroselae Cockerell, 1898 | |
| Anthidium (Anthidium) placitum Cresson, 1879 | |
| Anthidium (Anthidium) punctatum Latreille, 1809 | Apache bush |
| Anthidium (Anthidium) septemspinosum Lepeletier, 1841 | |
| Anthidium (Proanthidium) oblongatum Illiger, 1806 | Oblong wool carder bee |
| Anthidium byssinum Panzer, 1798 | |
| Anthidium caturigense (Giraud, 1863) | ⇒ Rhodanthidium caturigense Giraud, 1863 |
| Anthidium infuscatum (Erichson, 1835) | ⇒ Rhodanthidium infuscatum Erichson, 1835 |
| Anthidium lituratum Mavromoustakis, 1954 | |
| Anthidium nanum Mocsáry, 1879 | Bee |
| Anthidium septemdentatum (Latreille, 1809) | ⇒ Rhodanthidium septemdentatum Latreille, 1809 |
| Anthidium strigatum (Panzer, 1805) | ⇒ Anthidiellum strigatum Panzer, 1805 |
| Anthidium tenellum (Mocsáry, 1881) | ⇒ Pseudoanthidium tenellum Mocsáry, 1881 |
| Anthodioctes (Anthodioctes) mapirensis Cockerell, 1927 | |
| Anthodioctes lauroi Moure, 1947 | |
| Anthodioctes willineri Moure, 1947 | |
| Ashmeadiella (Arogochila) australis Cockerell, 1902 | |
| Ashmeadiella (Ashmeadiella) bigeloviae Cockerell, 1897 | |
| Ashmeadiella (Ashmeadiella) bucconis Say, 1837 | |
| Ashmeadiella (Ashmeadiella) prosopidis Cockerell, 1897 | |
| Ashmeadiella clypeodentata Michener, 1936 | |
| Chalicodoma (Pseudomegachile) ericetorum (Lepeletier, 1841) | ⇒ Megachile ericetorum Lepeletier, 1841 |
| Chalicodoma pyrenaica Lepeletier, 1841 | |
| Chalicodoma strangei Gonzalez & E..., 2012 | |
| 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 distinctum Stoeckhert, 1929 | |
| Chelostoma emarginatum Nylander, 1856 | |
| Chelostoma foveolatum Morawitz, 1868 | |
| Chelostoma grande Nylander, 1852 | |
| Coelioxys (Allocoelioxys) acanthura Illiger, 1806 | |
| Coelioxys (Allocoelioxys) afra Lepeletier, 1841 | Short Sharp-tail Bee |
| Coelioxys (Allocoelioxys) brevis (Eversmann, 1852) | ⇒ Coelioxys octodentata Say, 1824 |
| Coelioxys (Allocoelioxys) coturnix Perez, 1884 | Red-tailed Cuckoo-leaf-cutter |
| Coelioxys (Allocoelioxys) echinata Förster, 1853 | |
| Coelioxys (Allocoelioxys) haemorrhoa Förster, 1853 | |
| Coelioxys (Allocoelioxys) obtusa Perez, 1884 | |
| Coelioxys (Argcoelioxys) argentea Lepeletier, 1841 | |
| Coelioxys (Boreocoelioxys) octodentata Say, 1824 | Eight-toothed Cuckoo-leaf-cutter |
| Coelioxys (Coelioxys) aurolimbata Förster, 1853 | |
| Coelioxys (Coelioxys) caffra Friese, 1904 | |
| 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 (Cyrtocoelioxys) gilensis Cockerell, 1896 | |
| Coelioxys (Cyrtocoelioxys) modesta Smith, 1854 | Modest Cuckoo-leaf-cutter |
| Coelioxys alata Förster, 1853 | |
| Coelioxys bruneipes Pasteels, 1968 | |
| Coelioxys coeruleipennis Friese, 1904 | |
| Coelioxys tridentata (Fabricius, 1775) | ⇒ Aglaoapis tridentata Nylander, 1848 |
| Coelioxys vectis Curtis, 1831 | |
| Dioxys (Dioxys) cincta (Jurine, 1807) | ⇒ Dioxys cinctus Jurine, 1807 |
| Dioxys cinctus Jurine, 1807 | |
| Dioxys tridentata (Nylander, 1848) | ⇒ Aglaoapis tridentata Nylander, 1848 |
| Epanthidium (Epanthidium) bicoloratum Smith, 1879 | |
| Euaspis erythros Meunier, 1890 | |
| Heriades (Heriades) crenulatus (Nylander, 1856) | ⇒ Heriades crenulata Nylander, 1856 |
| Heriades (Heriades) truncorum Linnaeus, 1758 | Large-headed Resin Bee |
| Heriades crenulata Nylander, 1856 | Oblique jackknife clam |
| Heriades rubicola (Perez, 1890) | ⇒ Heriades rubicolus Perez, 1890 |
| Heriades rubicolus Perez, 1890 | |
| Hoplitis (Alcidamea) claviventris Thomson, 1872 | Welted lesser mason bee |
| Hoplitis (Alcidamea) leucomelana Kirby, 1802 | Black and white lesser mason bee |
| Hoplitis (Alcidamea) pilosifrons Cresson, 1864 | Hairy-Fronted Small-Mason |
| Hoplitis (Alcidamea) truncata Cresson, 1878 | Truncate Small-Mason |
| Hoplitis (Anthocopa) cristatula van der Zanden, 1990 | |
| Hoplitis (Anthocopa) dalmatica Morawitz, 1871 | |
| Hoplitis (Anthocopa) mocsaryi Friese, 1895 | |
| Hoplitis (Anthocopa) papaveris Latreille, 1799 | Canada Whiteface |
| Hoplitis (Anthocopa) villosa Schenck, 1853 | |
| Hoplitis (Dasyosmia) biscutellae Cockerell, 1897 | |
| Hoplitis (Formicapis) robusta Nylander, 1848 | |
| Hoplitis (Hoplitis) adunca Panzer, 1798 | Viper's Bugloss Mason Bee |
| Hoplitis (Hoplitis) anthocopoides Schenck, 1853 | Mason Bee |
| Hoplitis (Hoplitis) benoisti Alfken, 1935 | |
| Hoplitis (Hoplitis) lepeletieri Perez, 1879 | |
| Hoplitis (Monumetha) tuberculata Nylander, 1848 | |
| Hoplitis acuticornis Dufour & Perris, 1840 | |
| Hoplitis annulata Latreille, 1811 | |
| Hoplitis antigae Perez, 1895 | |
| Hoplitis bisulca Gerstäcker, 1869 | |
| Hoplitis brachypogon Perez, 1879 | |
| Hoplitis brachypogon brachypogon Perez, 1879 | |
| Hoplitis brevicornis Morawitz, 1880 | |
| Hoplitis loti Morawitz, 1867 | |
| Hoplitis mitis Nylander, 1852 | |
| Hoplitis mucida Dours, 1873 | |
| Hoplitis mucidoides van der Zanden, 1990 | |
| Hoplitis perezi Ferton, 1895 | |
| Hoplitis praestans Morawitz, 1893 | |
| Hoplitis ravouxi Perez, 1902 | |
| Hoplitis tridentata Dufour & Perris, 1840 | |
| Hoplosmia (Hoplosmia) spinulosa (Kirby, 1802) | ⇒ Osmia spinulosa Kirby, 1802 |
| Hoplosmia (Odontanthocopa) anceyi (Perez, 1879) | ⇒ Osmia anceyi Perez, 1879 |
| Hoplosmia (Odontanthocopa) ligurica Morawitz, 1868 | |
| Hoplosmia scutellaris Morawitz, 1868 | |
| Hypanthidioides flavopicta Smith, 1854 | |
| Hypanthidium beniense Cockerell, 1927 | Rainbow tellin |
| Icteranthidium grohmanni Spinola, 1838 | |
| Icteranthidium laterale Latreille, 1809 | Cancellate semele |
| Megachile (Amegachile) nasalis Smith, 1879 | Bunchberry dogwood |
| Megachile (Argyropile) parallela Smith, 1853 | Parallel Leaf-cutter Bee |
| Megachile (Argyropile) townsendiana Cockerell, 1898 | |
| Megachile (Callomegachile) sculpturalis Smith, 1853 | Giant resin bee |
| Megachile (Callomegachile) umbripennis Smith, 1853 | Shadow-winged Resin Bee |
| Megachile (Chalicodoma) lefebvrei Lepeletier, 1841 | |
| Megachile (Chalicodoma) orthostoma Cockerell, 1925 | |
| Megachile (Chalicodoma) parietina Geoffroy, 1785 | Black Mud Bee |
| Megachile (Chalicodoma) pyrenaica Lepeletier, 1841 | |
| Megachile (Chalicodoma) rufescens Perez, 1879 | |
| Megachile (Chalicodoma) sicula (Rossi, 1792) | ⇒ Megachile nasidens Friese, 1898 |
| Megachile (Chelostomoides) campanulae Robertson, 1903 | Bellflower resin bee |
| Megachile (Chelostomoides) chilopsidis Cockerell, 1900 | Desert-willow Resin Bee |
| Megachile (Chelostomoides) discorhina Cockerell, 1924 | |
| Megachile (Chelostomoides) odontostoma Cockerell, 1924 | |
| Megachile (Delomegachile) willughbiella Kirby, 1802 | |
| Megachile (Eutricharaea) albomarginata Smith, 1879 | Bunchberry dogwood |
| Megachile (Eutricharaea) apicalis (Spinola, 1808) | ⇒ Megachile analis Nylander, 1852 |
| Megachile (Eutricharaea) argentata Fabricius, 1793 | |
| Megachile (Eutricharaea) australis Lucas, 1876 | |
| Megachile (Eutricharaea) chrysopyga Smith, 1853 | Stout tagelus |
| Megachile (Eutricharaea) concinna Smith, 1853 | Elegant leaf-cutter bee |
| Megachile (Eutricharaea) deceptoria Perez, 1890 | |
| Megachile (Eutricharaea) dorsalis (Perez, 1879) | ⇒ Megachile leachella Curtis, 1828 |
| Megachile (Eutricharaea) leachella Curtis, 1828 | Megachile dorsalis |
| Megachile (Eutricharaea) leucomalla Gerstäcker, 1869 | |
| Megachile (Eutricharaea) patellimana Spinola, 1838 | |
| Megachile (Eutricharaea) pilidens Alfken, 1924 | |
| Megachile (Eutricharaea) rotundata Fabricius, 1787 | Alfafa leafcutting bee |
| Megachile (Eutricharaea) venusta Smith, 1853 | Stout tagelus |
| Megachile (Hackeriapis) rhodura Cockerell, 1906 | |
| Megachile (Hackeriapis) tosticauda Cockerell, 1912 | |
| Megachile (Litomegachile) coquilletti Cockerell, 1915 | |
| Megachile (Litomegachile) gentilis Cresson, 1872 | Leafcutter bee |
| Megachile (Litomegachile) lippiae Cockerell, 1900 | |
| 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) montivaga Cresson, 1878 | Silver-tailed Petal-cutter Bee |
| Megachile (Megachile) pilicrus Morawitz, 1877 | |
| Megachile (Megachile) relativa Cresson, 1878 | Golden-Tailed Leafcutter |
| Megachile (Megachile) versicolor Smith, 1844 | Brown-Footed Leaf-Cutter |
| Megachile (Megachiloides) fucata Mitchell, 1934 | |
| Megachile (Neocressoniella) anthracina Smith, 1853 | Stout tagelus |
| Megachile (Neoeutrichaea) rotundata Fabricius, 1793 | Alfalfa leaf-cutter bee |
| Megachile (Paracella) coelostoma (Cockerell, 1932) | ⇒ Megachile barbata Smith, 1853 |
| Megachile (Pseudocentron) sidalceae Cockerell, 1897 | |
| Megachile (Pseudomegachile) ericetorum Lepeletier, 1841 | Banded Mud Bee |
| Megachile (Rhodomegachile) abdominale Smith, 1853 | |
| Megachile (Rhodomegachile) abdominalis (Smith, 1853) | ⇒ Megachile abdominale Smith, 1853 |
| Megachile (Sayapis) newberryae Cockerell, 1900 | Newberry´s leaf-cutter Bee |
| Megachile (Sayapis) policaris Say, 1831 | |
| Megachile (Xanthosarus) analis Nylander, 1852 | |
| Megachile (Xanthosarus) circumcincta Kirby, 1802 | Black-headed leaf-cutter bee |
| Megachile (Xanthosarus) fortis Cresson, 1872 | |
| Megachile (Xanthosarus) lagopoda Linnaeus, 1761 | |
| Megachile (Xanthosarus) maritima Kirby, 1802 | Coast Leaf-Cutter |
| Megachile (Xanthosarus) willughbiella (Kirby, 1802) | ⇒ Megachile willughbiella Kirby, 1802 |
| Megachile albisecta Klug, 1817 | |
| Megachile albonotata Radoszkowski, 1886 | |
| Megachile alpicola Alfken, 1924 | |
| Megachile astragali Mitchell, 1938 | |
| Megachile aurantiaca Friese, 1905 | |
| Megachile bishoppi Cockerell, 1915 | |
| Megachile chrysorrhea Gerstäcker, 1857 | |
| Megachile corsica Benoist, 1935 | |
| Megachile dorsata Smith, 1853 | Stout tagelus |
| Megachile fertoni Perez, 1896 | Chrysanthemum gall midge |
| Megachile flabellipes Perez, 1895 | Chrysanthemum gall midge |
| Megachile genalis Morawitz, 1880 | |
| Megachile giraudi Gerstäcker, 1869 | |
| Megachile marginata Smith, 1853 | Stout tagelus |
| Megachile melanogaster Eversmann, 1852 | |
| Megachile nigriventris Schenck, 1870 | |
| Megachile niveascopa Ferton, 1908 | |
| Megachile octosignata Nylander, 1852 | |
| Megachile opacifrons Perez, 1897 | |
| Megachile pyrenaea Perez, 1890 | |
| Megachile rhyssalus Wu, 2005 | |
| Megachile schmiedeknechti Costa, 1884 | |
| Megachile villosa (Fabricius, 1775) | ⇒ Hoplitis villosa Schenck, 1853 |
| Osmia (Acanthosmioides) unca Michener, 1937 | |
| Osmia (Allosmia) rufohirta Latreille, 1811 | |
| 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) latreillei Spinola, 1806 | |
| 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 (Helicosmia) signata Erichson, 1835 | |
| Osmia (Melanosmia) atriventris Cresson, 1864 | Maine blueberry bee |
| Osmia (Melanosmia) atrocyanea Cockerell, 1897 | |
| Osmia (Melanosmia) bruneri Cockerell, 1897 | |
| Osmia (Melanosmia) distincta Cresson, 1864 | Distinct Mason Bee |
| Osmia (Melanosmia) exigua Cresson, 1878 | |
| Osmia (Melanosmia) inermis Zetterstedt, 1838 | Mountain mason bee |
| Osmia (Melanosmia) nigriventris Zetterstedt, 1838 | |
| Osmia (Melanosmia) parietina (Curtis, 1828) | ⇒ Osmia inermis Zetterstedt, 1838 |
| Osmia (Melanosmia) tersula Cockerell, 1912 | Wide-Banded 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 (Nothosmia) latisulcata Michener, 1936 | |
| Osmia (Osmia) cerinthidis Morawitz, 1876 | |
| Osmia (Osmia) cornuta Latreille, 1805 | Mason bee |
| Osmia (Osmia) emarginata Lepeletier, 1841 | |
| Osmia (Osmia) lignaria Say, 1837 | Blue orchard bee |
| Osmia (Osmia) rufa (Linnaeus, 1758) | ⇒ Osmia bicornis Linnaeus, 1758 |
| Osmia (Osmia) tricornis Latreille, 1811 | |
| Osmia (Pyrosmia) ferruginea Latreille, 1811 | |
| Osmia (Pyrosmia) gallarum Spinola, 1808 | |
| Osmia (Pyrosmia) submicans Morawitz, 1870 | |
| Osmia submicans submicans Morawitz, 1870 | |
| Osmia (Pyrosmia) versicolor Latreille, 1811 | |
| Osmia (Pyrosmia) viridana Morawitz, 1874 | |
| Osmia adunca (Panzer, 1798) | ⇒ Hoplitis adunca Panzer, 1798 |
| Osmia alticola Benoist, 1922 | |
| Osmia andrenoides Spinola, 1808 | |
| Osmia argyropyga Perez, 1879 | |
| Osmia bicornis Linnaeus, 1758 | Chrysanthemum gall midge |
| Osmia cephalotes Morawitz, 1870 | |
| Osmia claviventris (Thomson, 1872) | ⇒ Hoplitis claviventris Thomson, 1872 |
| Osmia cyanoxantha Perez, 1879 | |
| Osmia erythrogastra Ferton, 1905 | |
| Osmia fulviventris (Panzer, 1798) | ⇒ Osmia niveata Fabricius, 1804 |
| Osmia labialis Perez, 1879 | |
| Osmia laticeps Thomson, 1872 | Alfilaree |
| Osmia leucomelana Kirby, 1802 | Large Welted Lesser-Mason |
| Osmia lunata Benoist, 1929 | |
| Osmia mustelina Gerstäcker, 1869 | |
| Osmia nasuta Friese, 1899 | |
| Osmia niveocincta Perez, 1879 | |
| Osmia papaveris (Latreille, 1799) | ⇒ Hoplitis papaveris Latreille, 1799 |
| Osmia saxicola Ducke, 1899 | |
| Osmia spinulosa Kirby, 1802 | Spined Mason Bee |
| Osmia tergestensis Ducke, 1897 | |
| Osmia tridentata (DUFOUR & PÉREZ, 1840) | ⇒ Hoplitis tridentata Dufour & Perris, 1840 |
| Osmia villosa (Schenck, 1853) | ⇒ Hoplitis villosa Schenck, 1853 |
| Protosmia (Protosmia) glutinosa Giraud, 1871 | |
| Protosmia minutula Perez, 1896 | |
| Pseudoanthidium (Pseudoanthidium) scapulare Latreille, 1809 | Cancellate semele |
| Pseudoanthidium melanurum Klug, 1832 | |
| Pseudoanthidium reticulatum Mocsáry, 1884 | |
| Pseudoanthidium tenellum Mocsáry, 1881 | |
| Rhodanthidium (Rhodanthidium) infuscatum Erichson, 1835 | |
| Rhodanthidium (Rhodanthidium) septemdentatum Latreille, 1809 | Cancellate semele |
| Rhodanthidium septemdentatum septemdentatum Latreille, 1809 | |
| Rhodanthidium (Rhodanthidium) sticticum Fabricius, 1787 | |
| Rhodanthidium caturigense Giraud, 1863 | |
| Stelis (Dolichostelis) laticincta Cresson, 1878 | |
| Stelis (Protostelis) signata Latreille, 1809 | Cancellate semele |
| Stelis (Stelidium) ashmeadiella | |
| Stelis (Stelis) callura Cockerell, 1925 | |
| Stelis (Stelis) lateralis Cresson, 1864 | Spot-Sided Dark Bee |
| Stelis (Stelis) montana Cresson, 1864 | |
| Stelis (Stelis) phaeoptera Kirby, 1802 | Plain dark bee |
| Stelis annulata Lepeletier, 1841 | |
| Stelis breviuscula Nylander, 1848 | Little dark bee |
| Stelis franconica Blüthgen, 1930 | |
| Stelis nasuta Latreille, 1809 | Cancellate semele |
| Stelis odontopyga Noskiewicz, 1926 | |
| Stelis ornatula Klug, 1807 | Spotted dark bee |
| Stelis punctulatissima Kirby, 1802 | Banded dark bee |
| Stelis simillima Morawitz, 1876 | |
| Trachusa (Heteranthidium) larreae Cockerell, 1897 | |
| Trachusa (Heteranthidium) zebrata Cresson, 1872 | |
| Trachusa (Paranthidium) interrupta Fabricius, 1781 | |
| Trachusa (Trachusa) byssina Panzer, 1798 | |
| Trachusa laeviventris Dours, 1873 | |
| Trachusa laticeps Morawitz, 1873 | |
