| Coelioxys (Acrocoelioxys) dolichos Fox, 1890 | Carpenter-mimic Cuckoo-leaf-cutter |
| Coelioxys (Boreocoelioxys) banksi Crawford, 1914 | |
| Coelioxys (Boreocoelioxys) funeraria Smith, 1854 | |
| Coelioxys (Boreocoelioxys) insita Cresson, 1872 | |
| Coelioxys (Boreocoelioxys) moesta Cresson, 1864 | |
| Coelioxys (Boreocoelioxys) octodentata Say, 1824 | Eight-toothed Cuckoo-leaf-cutter |
| Coelioxys (Boreocoelioxys) porterae Cockerell, 1900 | Porter'S Cuckoo Leaf-Cutter Bee |
| Coelioxys (Boreocoelioxys) pratti Crawford, 1914 | |
| Coelioxys (Boreocoelioxys) salinaria Cockerell, 1925 | |
| Coelioxys (Boreocoelioxys) sayi Robertson, 1897 | Say'S Cuckoo Leaf-Cutter Bee |
| Coelioxys (Coelioxys) hirsutissima Cockerell, 1912 | |
| Coelioxys (Coelioxys) immaculata Cockerell, 1912 | |
| Coelioxys (Coelioxys) sodalis Cresson, 1878 | Comrade Cuckoo Leafcutter Bee |
| Coelioxys (Cyrtocoelioxys) angelica Cockerell, 1905 | |
| Coelioxys (Cyrtocoelioxys) deani Cockerell, 1909 | |
| Coelioxys (Cyrtocoelioxys) gilensis Cockerell, 1896 | |
| Coelioxys (Cyrtocoelioxys) gonaspis Cockerell, 1924 | |
| Coelioxys (Cyrtocoelioxys) hunteri Crawford, 1914 | Hunter´s Cuckoo-leaf-cutter |
| Coelioxys (Cyrtocoelioxys) modesta Smith, 1854 | Modest Cuckoo-leaf-cutter |
| Coelioxys (Cyrtocoelioxys) obtusiventris Crawford, 1914 | |
| Coelioxys (Cyrtocoelioxys) scitula Cresson, 1872 | |
| Coelioxys (Glyptocoelioxys) germana Cresson, 1878 | |
| Coelioxys (Haplocoelioxys) mexicana Cresson, 1878 | Mexican Cuckoo-leaf-cutter |
| Coelioxys (Neocoelioxys) menthae Cockerell, 1897 | |
| Coelioxys (Neocoelioxys) slossoni Viereck, 1902 | |
| Coelioxys (Synocoelioxys) alternata Say, 1837 | Alternate Cuckoo-leaf-cutter |
| Coelioxys (Synocoelioxys) apacheorum Cockerell, 1900 | |
| Coelioxys (Synocoelioxys) texana Cresson, 1872 | |
| Coelioxys (Xerocoelioxys) aperta Cresson, 1878 | |
| Coelioxys (Xerocoelioxys) edita Cresson, 1872 | |
| Coelioxys (Xerocoelioxys) grindeliae Cockerell, 1900 | |
| Coelioxys (Xerocoelioxys) piercei Crawford, 1914 | |
| Coelioxys asclepiadis Cockerell, 1925 | |
| Coelioxys bisoncornua Hill, 1936 | |
| Coelioxys boharti Mitchell, 1962 | |
| Coelioxys erysimi Cockerell, 1912 | |
| Coelioxys floridana Cresson, 1878 | |
| Coelioxys galactiae Mitchell, 1962 | |
| Coelioxys mesae Cockerell, 1921 | |
| Coelioxys mitchelli Baker, 1975 | |
| Coelioxys nodis Baker, 1975 | |
| Coelioxys novomexicana Cockerell, 1909 | |
| Coelioxys rufitarsus Smith, 1854 | Red-footed sharptail |
| Coelioxys serricauda Baker, 1975 | |
| Coelioxys soledadensis Cockerell, 1909 | |
| Megachile (Acentron) albitarsis Cresson, 1872 | White-footed Leaf-cutter Bee |
| Megachile (Argyropile) parallela Smith, 1853 | Parallel Leaf-cutter Bee |
| Megachile (Argyropile) rossi Mitchell, 1943 | |
| Megachile (Argyropile) sabinensis Mitchell, 1934 | |
| Megachile (Argyropile) townsendiana Cockerell, 1898 | |
| Megachile (Chelostomoides) adelphodonta Cockerell, 1924 | |
| Megachile (Chelostomoides) angelarum Cockerell, 1902 | |
| Megachile (Chelostomoides) browni Mitchell, 1934 | |
| Megachile (Chelostomoides) campanulae Robertson, 1903 | Bellflower resin bee |
| Megachile (Chelostomoides) chilopsidis Cockerell, 1900 | Desert-willow Resin Bee |
| Megachile (Chelostomoides) davidsoni Cockerell, 1902 | Golden-eardrops Resin Bee |
| Megachile (Chelostomoides) discorhina Cockerell, 1924 | |
| Megachile (Chelostomoides) exilis Cresson, 1872 | Slender Resin Bee |
| Megachile (Chelostomoides) georgica Cresson, 1878 | |
| Megachile (Chelostomoides) lobatifrons Cockerell, 1924 | |
| Megachile (Chelostomoides) manni Mitchell, 1934 | |
| Megachile (Chelostomoides) occidentalis Fox, 1894 | |
| Megachile (Chelostomoides) odontostoma Cockerell, 1924 | |
| Megachile (Chelostomoides) rugifrons Smith, 1854 | Rugose-Fronted Resin Bee |
| Megachile (Chelostomoides) spinotulata Mitchell, 1934 | |
| Megachile (Chelostomoides) subexilis Cockerell, 1908 | |
| Megachile (Chelostomoides) texensis Mitchell, 1956 | |
| Megachile (Cressoniella) zapoteca Cresson, 1878 | |
| Megachile (Eutricharaea) apicalis (Spinola, 1808) | ⇒ Megachile analis Nylander, 1852 |
| Megachile (Eutricharaea) concinna Smith, 1853 | Elegant leaf-cutter bee |
| Megachile (Leptorachis) petulans Cresson, 1878 | Petulant Leaf-cutter Bee |
| Megachile (Litomegachile) brevis (Say, 1837) | ⇒ Megachile pseudobrevis Mitchell, 1934 |
| 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) onobrychidis Cockerell, 1908 | Western Little Leaf-cutter Bee |
| Megachile (Litomegachile) pseudobrevis Mitchell, 1934 | Southeastern Little Leaf-cutter Bee |
| Megachile (Litomegachile) texana Cresson, 1878 | Texas Leaf-cutter Bee |
| Megachile (Megachile) centuncularis Linnaeus, 1758 | Common leaf-cutter bee |
| Megachile (Megachile) inermis Provancher, 1888 | Freckled milkvetch |
| Megachile (Megachile) lapponica Thomson, 1872 | Alfilaree |
| Megachile (Megachile) montivaga Cresson, 1878 | Silver-tailed Petal-cutter Bee |
| Megachile (Megachile) nivalis (Friese, 1903) | ⇒ Megachile lapponica Thomson, 1872 |
| Megachile (Megachile) relativa Cresson, 1878 | Golden-Tailed Leafcutter |
| Megachile (Megachiloides) alamosana (Mitchell, 1934) | ⇒ Megachile anograe Cockerell, 1908 |
| Megachile (Megachiloides) alata Mitchell, 1934 | |
| Megachile (Megachiloides) amica Cresson, 1872 | |
| Megachile (Megachiloides) anograe Cockerell, 1908 | |
| Megachile (Megachiloides) brimleyi Mitchell, 1926 | |
| Megachile (Megachiloides) casadae Cockerell, 1898 | |
| Megachile (Megachiloides) coloradensis (Mitchell, 1936) | ⇒ Megachile zapoteca Cresson, 1878 |
| Megachile (Megachiloides) dakotensis Mitchell, 1926 | |
| Megachile (Megachiloides) deflexa Cresson, 1878 | |
| Megachile (Megachiloides) fucata Mitchell, 1934 | |
| Megachile (Megachiloides) gravita Mitchell, 1934 | |
| Megachile (Megachiloides) hookeri Cockerell, 1915 | |
| Megachile (Megachiloides) integra Cresson, 1878 | |
| Megachile (Megachiloides) integrella Mitchell, 1926 | |
| Megachile (Megachiloides) legalis Cresson, 1879 | |
| Megachile (Megachiloides) manifesta Cresson, 1878 | |
| Megachile (Megachiloides) mucorosa Cockerell, 1908 | |
| Megachile (Megachiloides) nevadensis Cresson, 1879 | |
| Megachile (Megachiloides) oenotherae Mitchell, 1924 | |
| Megachile (Megachiloides) pascoensis Mitchell, 1934 | |
| Megachile (Megachiloides) rubi Mitchell, 1924 | |
| Megachile (Megachiloides) soledadensis Cockerell, 1900 | |
| Megachile (Megachiloides) subnigra Cresson, 1879 | |
| Megachile (Megachiloides) wheeleri Mitchell, 1927 | |
| Megachile (Megachiloides) wyomingensis Mitchell, 1934 | |
| Megachile (Megachiloides) xerophila Cockerell, 1933 | |
| Megachile (Melanosarus) bahamensis Mitchell, 1927 | Bahama Leaf-cutter Bee |
| Megachile (Melanosarus) xylocopoides Smith, 1853 | Carpenter-mimic Leaf-cutter Bee |
| Megachile (Neochelynia) chichimeca Cresson, 1878 | |
| Megachile (Neoeutrichaea) rotundata Fabricius, 1793 | Alfalfa leaf-cutter bee |
| Megachile (Pseudocentron) pruina Smith, 1853 | Hoary Leaf-cutter Bee |
| Megachile (Pseudocentron) sidalceae Cockerell, 1897 | |
| Megachile (Pseudomegachile) lanata Fabricius, 1775 | Wooly Wall Bee |
| Megachile (Sayapis) fidelis Cresson, 1878 | Faithful leafcutting bee |
| Megachile (Sayapis) frugalis Cresson, 1872 | |
| Megachile (Sayapis) helianthi (Cockerell, 1908) | ⇒ Megachile montivaga Cresson, 1878 |
| Megachile (Sayapis) inimica Cresson, 1872 | Hostile Leaf-cutter Bee |
| Megachile (Sayapis) newberryae Cockerell, 1900 | Newberry´s leaf-cutter Bee |
| Megachile (Sayapis) policaris Say, 1831 | |
| Megachile (Xanthosarus) addenda Cresson, 1878 | Cranberry Leafcutter |
| Megachile (Xanthosarus) agustini Cockerell, 1905 | |
| Megachile (Xanthosarus) analis Nylander, 1852 | |
| Megachile (Xanthosarus) circumcincta Kirby, 1802 | Black-headed leaf-cutter bee |
| Megachile (Xanthosarus) cochisiana Mitchell, 1934 | |
| Megachile (Xanthosarus) comata Cresson, 1872 | |
| Megachile (Xanthosarus) dentitarsus Sladen, 1919 | |
| Megachile (Xanthosarus) fortis Cresson, 1872 | |
| Megachile (Xanthosarus) frigida Smith, 1853 | Frigid Leaf-cutter Bee |
| Megachile (Xanthosarus) gemula Cresson, 1878 | Small-handed Leaf-cutter Bee |
| Megachile (Xanthosarus) giliae (Cockerell, 1906) | ⇒ Megachile circumcincta Kirby, 1802 |
| Megachile (Xanthosarus) ingenua Cresson, 1878 | |
| Megachile (Xanthosarus) innupta Cockerell, 1915 | |
| Megachile (Xanthosarus) latimanus Say, 1823 | Broad-handed Leaf-cutter Bee |
| Megachile (Xanthosarus) melanophaea Smith, 1853 | Black-and-gray Leaf-cutter Bee |
| Megachile (Xanthosarus) mucida Cresson, 1878 | |
| Megachile aegra (Mitchell, 1930) | ⇒ Megachile brethesi Schrottky, 1909 |
| Megachile asterae Mitchell, 1943 | |
| Megachile astragali Mitchell, 1938 | |
| Megachile bidentata Fabricius, 1775 | |
| Megachile boharti Mitchell, 1942 | |
| Megachile bradleyi Mitchell, 1934 | |
| Megachile brethesi Schrottky, 1909 | |
| Megachile bruneri Mitchell, 1934 | |
| Megachile cylindrica Friese, 1906 | |
| Megachile dentipes (Vachal, 1909) | ⇒ Megachile cylindrica Friese, 1906 |
| Megachile dulciana Mitchell, 1934 | |
| Megachile hilata Mitchell, 1934 | |
| Megachile impartita Mitchell, 1934 | |
| Megachile instita Mitchell, 1934 | |
| Megachile inyoensis Mitchell, 1942 | |
| Megachile laguniana Mitchell, 1937 | |
| Megachile latita Mitchell, 1934 | |
| Megachile laurita Mitchell, 1927 | |
| Megachile macneilli Mitchell, 1957 | |
| Megachile maurata Mitchell, 1936 | |
| Megachile melanderi Mitchell, 1944 | |
| Megachile mellitarsis Cresson, 1878 | |
| Megachile micheneri Mitchell, 1936 | |
| Megachile mojavensis Mitchell, 1934 | |
| Megachile morio (Smith, 1853) | ⇒ Megachile pruina Smith, 1853 |
| Megachile nelsoni Mitchell, 1936 | |
| Megachile oslari Mitchell, 1934 | |
| Megachile pagosiana Mitchell, 1934 | |
| Megachile palmensis Mitchell, 1934 | |
| Megachile parksi Mitchell, 1936 | |
| Megachile perhirta Cockerell, 1898 | |
| Megachile pseudolegalis Mitchell, 1957 | |
| Megachile pseudonigra Mitchell, 1927 | |
| Megachile pugnatus Say, 1837 | |
| Megachile seducta Mitchell, 1934 | |
| Megachile semilaurita Mitchell, 1927 | |
| Megachile stoddardensis Mitchell, 1957 | |
| Megachile subanograe Mitchell, 1934 | |
| Megachile sublaurita Mitchell, 1927 | |
| Megachile subparallela Mitchell, 1944 | |
| Megachile subspinotulata Mitchell, 1934 | |
| Megachile toscata Mitchell, 1934 | |
| Megachile tulariana Mitchell, 1937 | |
| Megachile umatillensis Mitchell, 1927 | |
| Megachile victoriana Mitchell, 1934 | |
| Megachile yumensis Mitchell, 1944 | |
