| Anthidium (Anthidium) manicatum Linnaeus, 1758 | Continental Wool-carder Bee |
| Anthidium (Proanthidium) oblongatum Illiger, 1806 | Oblong wool carder bee |
| Anthidium exhumatum ♰ Cockerell, 1906 | |
| Anthidium nanum Mocsáry, 1879 | Bee |
| Anthidium scudderi ♰ Cockerell, 1906 | |
| Ashmeadiella (Ashmeadiella) cactorum (Cockerell, 1897) | ⇒ Ashmeadiella aridula Cockerell, 1910 |
| Chelostoma (Foveosmia) campanularum Kirby, 1802 | Carpenter bee |
| Chelostoma (Gyrodromella) rapunculi Lepeletier, 1841 | Rampion Scissor Bee |
| Chelostoma (Prochelostoma) philadelphi Robertson, 1891 | Mock-Orange Scissor Bee |
| Coelioxys (Acrocoelioxys) producta Cresson, 1865 | |
| Coelioxys (Allocoelioxys) coturnix Perez, 1884 | Red-tailed Cuckoo-leaf-cutter |
| Coelioxys (Boreocoelioxys) funeraria Smith, 1854 | |
| 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 |
| Coelioxys (Coelioxys) sodalis Cresson, 1878 | Comrade Cuckoo Leafcutter Bee |
| 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 comstockii Cresson, 1878 | |
| Coelioxys lucrosa Cresson, 1878 | |
| Coelioxys sculptifrons Crawford, 1914 | |
| Dianthidium (Dianthidium) curvatum Smith, 1854 | |
| Dianthidium (Dianthidium) parvum Cresson, 1878 | |
| Heriades (Neotrypetes) carinatus Cresson, 1864 | |
| Heriades (Neotrypetes) variolosus (Cresson, 1872) | ⇒ Heriades variolosa Cresson, 1872 |
| Hoplitis (Alcidamea) pilosifrons Cresson, 1864 | Hairy-Fronted Small-Mason |
| Hoplitis (Monumetha) spoliata Provancher, 1888 | Dilated-Horned Small-Mason |
| Megachile (Acentron) albitarsis Cresson, 1872 | White-footed Leaf-cutter Bee |
| Megachile (Austromegachile) trigonaspis Schrottky, 1913 | |
| Megachile (Callomegachile) sculpturalis Smith, 1853 | Giant resin bee |
| Megachile (Chelostomoides) campanulae Robertson, 1903 | Bellflower resin bee |
| Megachile (Chelostomoides) exilis Cresson, 1872 | Slender Resin Bee |
| 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) mendica Cresson, 1878 | Flat-tailed 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) montivaga Cresson, 1878 | Silver-tailed Petal-cutter Bee |
| Megachile (Megachile) relativa Cresson, 1878 | Golden-Tailed Leafcutter |
| Megachile (Melanosarus) xylocopoides Smith, 1853 | Carpenter-mimic Leaf-cutter Bee |
| 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) gemula Cresson, 1878 | Small-handed Leaf-cutter Bee |
| Megachile (Xanthosarus) latimanus Say, 1823 | Broad-handed Leaf-cutter Bee |
| Megachile (Xanthosarus) melanophaea Smith, 1853 | Black-and-gray Leaf-cutter Bee |
| Megachile (Xanthosarus) perihirta Cockerell, 1898 | Furry Leaf-cutter Bee |
| Megachile infragilis Cresson, 1878 | |
| Megachile perplexa Smith, 1853 | |
| Megachile rhyssalus Wu, 2005 | |
| Osmia (Cephalosmia) montana Cresson, 1864 | |
| Osmia (Diceratosmia) conjuncta Cresson, 1864 | |
| Osmia (Helicosmia) caerulescens (Linnaeus, 1758) | ⇒ Osmia caerulescens Linnaeus, 1758 |
| Osmia (Helicosmia) georgica Cresson, 1878 | Georgia Mason |
| Osmia (Melanosmia) albiventris Cresson, 1864 | |
| Osmia (Melanosmia) albolateralis Cockerell, 1906 | |
| Osmia (Melanosmia) atriventris Cresson, 1864 | Maine blueberry bee |
| Osmia (Melanosmia) bucephala Cresson, 1864 | Bufflehead Mason Bee |
| Osmia (Melanosmia) calaminthae Rightmyer, D..., 2011 | Blue Calamintha bee |
| Osmia (Melanosmia) collinsiae Robertson, 1905 | Collinsia Mason |
| Osmia (Melanosmia) distincta Cresson, 1864 | Distinct Mason Bee |
| Osmia (Melanosmia) felti Cockerell, 1911 | |
| Osmia (Melanosmia) pumila Cresson, 1864 | Dwarf Mason Bee |
| Osmia (Melanosmia) simillima Smith, 1853 | Similar Mason Bee |
| Osmia (Melanosmia) tersula Cockerell, 1912 | Wide-Banded Mason Bee |
| Osmia (Melanosmia) texana Cresson, 1872 | Texas Mason Bee |
| Osmia (Melanosmia) virga Sandhouse, 1939 | Twig Mason Bee |
| Osmia (Mystacosmia) nemoris Sandhouse, 1924 | |
| Osmia (Osmia) cornifrons Radoszkowski, 1887 | Horn-faced bee |
| Osmia (Osmia) lignaria Say, 1837 | Blue orchard bee |
| Osmia (Osmia) taurus Smith, 1873 | Alternate-leaf dogwood |
| Osmia 4-dentata | |
| Osmia armaticeps Cresson, 1878 | |
| Osmia faceta Cresson, 1878 | |
| Osmia lacunosa Griswold & R..., 2017 | |
| Osmia latitarsis Cresson, 1864 | |
| Paranthidium (Paranthidium) jugatorium Say, 1824 | Sunflower Burrowing-Resin Bee |
| Stelis (Dolichostelis) louisae Cockerell, 1911 | |
| Stelis (Stelidium) ashmeadiella | |
| Stelis (Stelis) coarctatus Crawford, 1916 | Constrained Cuckoo Carder Bee |
| Stelis (Stelis) lateralis Cresson, 1864 | Spot-Sided Dark Bee |
| Stelis foederalis Smith, 1854 | Federal Cuckoo Carder Bee |
| Stelis nitida Cresson, 1878 | |
