| Ammobates (Euphileremus) oraniensis Lepeletier, 1841 | |
| Ammobates bilobatus | |
| Ammobates branchi | |
| Brachynomada (Melanomada) annectens Snelling & R..., 1987 | |
| Brachynomada (Melanomada) grindeliae Cockerell, 1903 | |
| Brachynomada (Melanomada) melanantha Linsley, 1939 | |
| Brachynomada (Melanomada) nimia Snelling & R..., 1987 | |
| Brachynomada sidaefloris Cockerell, 1898 | |
| Doeringiella concava | |
| Epeolus agnatus | |
| Epeolus ainsliei Crawford, 1932 | |
| Epeolus alatus Friese, 1922 | Malheur Cave amphipod |
| Epeolus amabilis Gerstäcker, 1869 | |
| Epeolus americanus Cresson, 1878 | |
| Epeolus andriyi Onuferko, 2018 | |
| Epeolus argyreus | |
| Epeolus asperatus Cockerell, 1909 | |
| Epeolus attenboroughi Onuferko, 2018 | |
| Epeolus australis Mitchell, 1962 | |
| Epeolus autumnalis Robertson, 1902 | Autumnal Cellophane-Cuckoo |
| Epeolus axillaris Onuferko, 2018 | |
| Epeolus barberiellus Cockerell, 1907 | |
| Epeolus basili Onuferko, 2018 | |
| Epeolus beulahensis Cockerell, 1904 | |
| Epeolus bifasciatus Cresson, 1864 | Two-Banded Cellophane-Cuckoo |
| Epeolus bifasciatus bifasciatus (Cresson, 1864) | ⇒ Epeolus bifasciatus Cresson, 1864 |
| Epeolus bihamatus | |
| Epeolus brumleyi Onuferko, 2018 | |
| Epeolus californicus | |
| Epeolus canadensis Mitchell, 1962 | Canadian Cellophane-Cuckoo Bee |
| Epeolus carolinus Mitchell, 1962 | |
| Epeolus chamaesarachae Onuferko, 2018 | |
| Epeolus compactus Cresson, 1878 | |
| Epeolus crucis Cockerell, 1904 | |
| Epeolus dakotensis | |
| Epeolus deyrupi Onuferko, 2018 | |
| Epeolus diadematus Onuferko, 2018 | |
| Epeolus erigeronis Mitchell, 1962 | |
| Epeolus ferrarii Onuferko, 2018 | |
| Epeolus flavofasciatus Smith, 1879 | Bunchberry dogwood |
| Epeolus floridensis Mitchell, 1962 | |
| Epeolus gabrielis Cockerell, 1909 | |
| Epeolus glabratus Cresson, 1878 | |
| Epeolus hitei Cockerell, 1908 | |
| Epeolus howardi Mitchell, 1962 | |
| Epeolus humillimus Cockerell, 1918 | |
| Epeolus ilicis Mitchell, 1962 | |
| Epeolus inornatus Onuferko, 2018 | |
| Epeolus interruptus Robertson, 1900 | |
| Epeolus lanhami Mitchell, 1962 | |
| Epeolus lectiformis (Cockerell, 1925) | ⇒ Triepeolus lectiformis Cockerell, 1925 |
| Epeolus lectoides Robertson, 1901 | Knotted clover |
| Epeolus lectus Cresson, 1878 | |
| Epeolus lutzi Cockerell, 1921 | |
| Epeolus mercatus Fabricius, 1804 | Aleutian macoma |
| Epeolus mesillae Cockerell, 1895 | |
| Epeolus mesillae palmarum (Linsley, 1939) | ⇒ Epeolus mesillae Cockerell, 1895 |
| Epeolus minimus Robertson, 1902 | Least Cellophane-Cuckoo Bee |
| Epeolus natalensis Smith, 1879 | Bunchberry dogwood |
| Epeolus nebulosus Onuferko, 2018 | |
| Epeolus nevadensis | |
| Epeolus novomexicanus Cockerell, 1912 | |
| Epeolus occidentalis | |
| Epeolus olympiellus Cockerell, 1904 | |
| Epeolus oswegoensis (Mitchell, 1962) | ⇒ Triepeolus pectoralis Robertson, 1897 |
| Epeolus packeri Onuferko, 2018 | |
| Epeolus pusillus Cresson, 1864 | Dwarf Cellophane-Cuckoo Bee |
| Epeolus roseatus (Cockerell, 1937) | ⇒ Epeolus rufothoracicus Bischoff, 1923 |
| Epeolus rufothoracicus Bischoff, 1923 | |
| Epeolus rufulus Cockerell, 1941 | |
| Epeolus scelestus (Cresson, 1878) | ⇒ Triepeolus scelestus Cresson, 1878 |
| Epeolus scopulus | |
| Epeolus scutellaris Say, 1824 | Notch-Backed Cellophane-Cuckoo Bee |
| Epeolus semilectus | |
| Epeolus siculus Giordani Soika, 1944 | |
| Epeolus splendidus Onuferko, 2018 | |
| Epeolus tessieris Onuferko, 2018 | |
| Epeolus texanus | |
| Epeolus verbesinae | |
| Epeolus vernalis Mitchell, 1962 | |
| Epeolus virginiensis | |
| Epeolus zonatus Smith, 1854 | |
| Gnathias perbella | |
| Hesperonomada melanantha | |
| Hexepeolus mojavensis (Linsley & Mi..., 1937) | ⇒ Hexepeolus rhodogyne Linsley & Mi..., 1937 |
| Hexepeolus rhodogyne Linsley & Mi..., 1937 | |
| Holcopasites acanthochilus | |
| Holcopasites apacheorum Hurd & Linsley, 1972 | |
| Holcopasites arizonicus Linsley, 1942 | |
| Holcopasites calliopsidis Linsley, 1943 | Calliopsis Cuckoo Nomad Bee |
| Holcopasites calliopsidis calliopsidis Linsley, 1943 | |
| Holcopasites calliopsidis carinatus (Linsley, 1943) | ⇒ Holcopasites calliopsidis Linsley, 1943 |
| Holcopasites eamia Cockerell, 1909 | |
| Holcopasites haematurus Cockerell & ..., 1926 | |
| Holcopasites heliopsis Robertson, 1897 | |
| Holcopasites illinoiensis Robertson, 1891 | |
| Holcopasites illinoiensis illinoiensis (Robertson, 1891) | ⇒ Holcopasites illinoiensis Robertson, 1891 |
| Holcopasites insoletus Linsley, 1942 | |
| Holcopasites jerryrozeni Neff, 2004 | |
| Holcopasites minimus Linsley, 1943 | |
| Holcopasites pratti | |
| Holcopasites pseudocarinatus | |
| Holcopasites pulchellus Cresson, 1878 | |
| Holcopasites rozeni Hurd & Linsley, 1972 | |
| Holcopasites ruthae Cooper, 1993 | |
| Holcopasites stevensi Crawford, 1915 | |
| Holcopasites tegularis Hurd & Linsley, 1972 | |
| Holcopasites texanus | |
| Melanomada nimia (Snelling & R..., 1987) | ⇒ Brachynomada nimia Snelling & R..., 1987 |
| Neolarra abdominalis | |
| Neolarra alba Cockerell, 1916 | |
| Neolarra batrae Shanks, 1978 | |
| Neolarra californica Michener, 1939 | |
| Neolarra cockerelli Crawford, 1916 | |
| Neolarra congregata | |
| Neolarra hurdi Shanks, 1978 | |
| Neolarra linsleyi Michener, 1939 | |
| Neolarra orbiculata Shanks, 1978 | |
| Neolarra penicula Shanks, 1978 | |
| Neolarra pruinosa Ashmead, 1890 | |
| Neolarra rozeni Shanks, 1978 | |
| Neolarra ute Griswold & P..., 1999 | |
| Neolarra vandykei Michener, 1939 | |
| Neolarra verbesinae Cockerell, 1895 | |
| Neolarra vigilans Cockerell, 1895 | |
| Neopasites cressoni Crawford, 1916 | |
| Neopasites fulviventris Cresson, 1878 | |
| Neopasites mojavensis Linsley, 1943 | |
| Neopasites punctulatus | |
| Neopasites robertsoni | |
| Neopasites sierrae Linsley, 1943 | |
| Neopasites timberlakei Linsley, 1943 | |
| Nomada (Centrias) erigeronis Robertson, 1897 | |
| Nomada (Gnathias) bella Cresson, 1863 | Belle Nomad Bee |
| Nomada bella bella Cresson, 1863 | |
| Nomada bella callura (Cockerell, 1911) | ⇒ Nomada bella Cresson, 1863 |
| Nomada (Nomada) annulata Smith, 1854 | |
| Nomada (Nomada) augustiana Mitchell, 1962 | |
| Nomada (Nomada) banksi Cockerell, 1907 | Banks' Nomad Bee |
| Nomada (Nomada) ceanothi Cockerell, 1907 | |
| Nomada (Nomada) denticulata Robertson, 1902 | Denticulate Nomad |
| Nomada (Nomada) fragariae Mitchell, 1962 | |
| Nomada (Nomada) gracilis Cresson, 1863 | Slender Cuckoo Nomad Bee |
| Nomada (Nomada) integerrima Dalla Torre, 1896 | |
| Nomada (Nomada) micheneri Schwarz & Gu..., 2004 | |
| Nomada (Nomada) parva Robertson, 1900 | Small Cuckoo Nomad Bee |
| Nomada (Nomada) sulphurata Smith, 1854 | |
| Nomada (Nomada) vicina Cresson, 1863 | Neighborly Nomad |
| Nomada vicina vicina Cresson, 1863 | |
| Nomada (Nomadita) placida Cresson, 1863 | |
| Nomada (Xanthidium) coquilletti Cockerell, 1903 | |
| Nomada accepta Cresson, 1878 | |
| Nomada adducta Cresson, 1878 | |
| Nomada adusta Smith, 1875 | |
| Nomada affabilis Cresson, 1878 | |
| Nomada affabilis affabilis Cresson, 1878 | |
| Nomada affabilis dallasensis (Cockerell, 1911) | ⇒ Nomada affabilis Cresson, 1878 |
| Nomada agynia Cockerell, 1905 | |
| Nomada albidemaculata Lozinski, 1922 | |
| Nomada alpha Cockerell, 1905 | |
| Nomada angelarum Cockerell, 1903 | |
| Nomada antennata Meade-Waldo, 1913 | |
| Nomada antonita | |
| Nomada aquilarum Cockerell, 1903 | |
| Nomada arenicola Swenk, 1913 | |
| Nomada argentata Herrich-Schä..., 1839 | Silver-sided nomad bee |
| Nomada argentea Schwarz, 1966 | |
| Nomada arizonica Cockerell, 1911 | |
| Nomada armatella Cockerell, 1903 | Armed Cuckoo Nomad Bee |
| Nomada articulata Smith, 1854 | Articulated Nomad |
| Nomada ashmeadi Cockerell, 1903 | |
| Nomada asteris Swenk, 1913 | |
| Nomada astori Cockerell, 1903 | |
| Nomada atrofrontata Cockerell, 1903 | |
| Nomada australis Mitchell, 1962 | Austral Cuckoo Nomad Bee |
| Nomada autumnalis Mitchell, 1962 | |
| Nomada avalonica Cockerell, 1938 | |
| Nomada azaleae Mitchell, 1962 | |
| Nomada belfragei Cresson, 1878 | |
| Nomada besseyi Swenk, 1913 | |
| Nomada bethunei Cockerell, 1903 | Bethune'S Cuckoo Nomad Bee |
| Nomada beulahensis Cockerell, 1903 | |
| Nomada bifasciata Olivier, 1811 | Dusky-horned nomad bee |
| Nomada bifurcata Cockerell, 1903 | |
| Nomada binotata Robertson, 1903 | |
| Nomada bisignata Say, 1824 | |
| Nomada bohartorum Moalif, 1988 | |
| Nomada californiae Cockerell, 1903 | |
| Nomada capillata Mitchell, 1962 | |
| Nomada capitalis Mitchell, 1962 | |
| Nomada carolinae | |
| Nomada castellana Dusmet y Alonso, 1913 | Castell's nomad bee |
| Nomada cincta Rossi, 1792 | |
| Nomada citrina Cresson, 1878 | |
| Nomada citrina citrina Cresson, 1878 | |
| Nomada citrina rufula (Cockerell, 1903) | ⇒ Nomada citrina Cresson, 1878 |
| Nomada civilis Cresson, 1878 | |
| Nomada civilis spokanensis (Cockerell, 1910) | ⇒ Nomada civilis Cresson, 1878 |
| Nomada clarkii Cresson, 1903 | |
| Nomada collinsiana Cockerell, 1905 | |
| Nomada coloradella Cockerell, 1905 | |
| Nomada coloradensis Cresson, 1903 | |
| Nomada colorata Mitchell, 1962 | |
| Nomada composita Mitchell, 1962 | Composite Cuckoo Nomad Bee |
| Nomada cordleyi Cresson, 1903 | |
| Nomada cornelliana | |
| Nomada coronata Perez, 1896 | |
| Nomada corvallisensis Cresson, 1903 | |
| Nomada costalis Brèthes, 1909 | |
| Nomada crassula | |
| Nomada crawfordi Cockerell, 1905 | |
| Nomada crawfordi crawfordi Cockerell, 1905 | |
| Nomada cressonii Morawitz, 1877 | Cresson'S Nomad |
| Nomada cressonii cressonii Robertson, 1893 | |
| Nomada cressonii trevoriana Viereck, 1905 | |
| Nomada crotchii Cresson, 1878 | |
| Nomada crotchii crotchii Cresson, 1878 | |
| Nomada crotchii nigrior (Cockerell, 1903) | ⇒ Nomada crotchii Cresson, 1878 |
| Nomada crucis Cresson, 1903 | |
| Nomada crudelis Cresson, 1878 | |
| Nomada cubensis Cresson, 1865 | Winged surfclam |
| Nomada cuneata Robertson, 1903 | Cuneate Cuckoo Nomad Bee |
| Nomada custeriana Cockerell, 1911 | |
| Nomada cymbalariae Cockerell, 1906 | |
| Nomada davidsoni Cresson, 1903 | |
| Nomada decempunctata Cresson, 1903 | |
| Nomada decepta Mitchell, 1962 | |
| Nomada dentariae Robertson, 1903 | |
| Nomada depressa Cresson, 1863 | Depressed Cuckoo Nomad Bee |
| Nomada detrita Mitchell, 1962 | |
| Nomada dilucida Cresson, 1878 | |
| Nomada discrepans Schmiedeknecht, 1882 | |
| Nomada dreisbachi Mitchell, 1962 | |
| Nomada ednae Cockerell, 1907 | |
| Nomada edwardsii Cresson, 1878 | Edwards´ Nomad Bee |
| Nomada edwardsii edwardsii Cresson, 1878 | |
| Nomada edwardsii vinnula (Cresson, 1879) | ⇒ Nomada edwardsii Cresson, 1878 |
| Nomada electa Cresson, 1863 | |
| Nomada electella Cresson, 1903 | |
| Nomada elegantula Cresson, 1903 | |
| Nomada elrodi Cresson, 1903 | |
| Nomada erythrochroa Cresson, 1903 | |
| Nomada erythrospila Cockerell, 1916 | |
| Nomada excellens | |
| Nomada fervida Smith, 1854 | |
| Nomada festiva (Cresson, 1863) | ⇒ Nomada italica Dalla Torre ..., 1894 |
| Nomada flavoguttata Kirby, 1802 | Little Nomad Bee |
| Nomada florilega Lovell & Coc..., 1905 | Flower Cuckoo Nomad Bee |
| Nomada fontis Cockerell, 1910 | |
| Nomada formula Viereck, 1902 | |
| Nomada fowleri | |
| Nomada fragilis Cresson, 1878 | |
| Nomada fragilis fragilis Cresson, 1878 | |
| Nomada frieseana Cockerell, 1904 | |
| Nomada fuscicincta Swenk, 1915 | |
| Nomada garciana Cockerell, 1907 | |
| Nomada gibbosa Viereck, 1905 | Twining screwstem |
| Nomada gillettei Cockerell, 1905 | |
| Nomada goodeniana Kirby, 1802 | Gooden's nomad bee |
| Nomada graenicheri Cockerell, 1905 | |
| Nomada grandis Cresson, 1875 | |
| Nomada grayi Cockerell, 1903 | |
| Nomada grayi eastonensis (Cockerell, 1903) | ⇒ Nomada grayi Cockerell, 1903 |
| Nomada grayi grayi Cockerell, 1903 | |
| Nomada grindeliae (Cockerell, 1903) | ⇒ Brachynomada grindeliae Cockerell, 1903 |
| Nomada gutierreziae Cockerell, 1896 | |
| Nomada heiligbrodtii (Cresson, 1878) | ⇒ Nomada texana Cresson, 1872 |
| Nomada heleniella | |
| Nomada hemphilli Cockerell, 1903 | |
| Nomada hera Schwarz, 1965 | |
| Nomada hesperia Cockerell, 1903 | |
| Nomada hesperia hesperia Cockerell, 1903 | |
| Nomada hirtiventris Schwarz, 1990 | |
| Nomada hoodiana Cockerell, 1903 | |
| Nomada hydrophylli Swenk, 1915 | |
| Nomada illinoensis (Robertson, 1900) | ⇒ Nomada illinoiensis Robertson, 1900 |
| Nomada illinoiensis Robertson, 1900 | |
| Nomada imbricata Smith, 1854 | Imbricate Cuckoo Nomad Bee |
| Nomada incerta | |
| Nomada indusata (Mitchell, 1962) | ⇒ Nomada augustiana Mitchell, 1962 |
| Nomada inepta (Mitchell, 1962) | ⇒ Nomada gracilis Cresson, 1863 |
| Nomada interruptella Fowler, 1902 | |
| Nomada italica Dalla Torre ..., 1894 | |
| Nomada jennei Cockerell, 1906 | |
| Nomada jocularis Cresson, 1879 | |
| Nomada kincaidiana Cockerell, 1903 | |
| Nomada kingstonensis (Mitchell, 1962) | ⇒ Nomada lehighensis Cockerell, 1903 |
| Nomada klamathensis Fox, 1926 | |
| Nomada lamarensis Cockerell, 1905 | |
| Nomada latifrons Cockerell, 1903 | |
| Nomada lehighensis Cockerell, 1903 | Lehigh Gap Cuckoo Nomad Bee |
| Nomada lepida Cresson, 1863 | Charming Cuckoo Nomad Bee |
| Nomada leucophthalma Kirby, 1802 | Early Nomad |
| Nomada leucozona Rodeck, 1931 | |
| Nomada lewisi Cockerell, 1903 | |
| Nomada libata Cresson, 1878 | |
| Nomada linsleyi Evans, 1972 | |
| Nomada lippiae Cockerell, 1903 | |
| Nomada lippiae sublippiae (Cockerell, 1907) | ⇒ Nomada lippiae Cockerell, 1903 |
| Nomada longicornis Friese, 1920 | |
| Nomada louisianae Cockerell, 1903 | |
| Nomada luteola Olivier, 1811 | Littleleaf mockorange |
| Nomada luteoloides (Robertson, 1895) | ⇒ Nomada sulphurata Smith, 1854 |
| Nomada luteopicta Cockerell, 1905 | |
| Nomada maculata Cresson, 1863 | Spotted Nomad Bee |
| Nomada maculiventer Swenk, 1915 | |
| Nomada magnifica | |
| Nomada malonella Cockerell, 1910 | |
| Nomada malonina Cockerell, 1910 | |
| Nomada marginella Cockerell, 1903 | |
| Nomada marshamella Kirby, 1802 | Marsham's nomad bee |
| Nomada martinella Cockerell, 1903 | |
| Nomada mckenziei Timberlake &..., 1937 | |
| Nomada media Mitchell, 1962 | |
| Nomada melanoptera Cockerell, 1921 | |
| Nomada melanosoma Cockerell, 1916 | |
| Nomada melliventris Cresson, 1878 | |
| Nomada mendica Mitchell, 1962 | |
| Nomada mera | |
| Nomada mimus Cockerell, 1916 | |
| Nomada minima Mitchell, 1962 | |
| Nomada mitchelli Cockerell, 1911 | |
| Nomada modesta Cresson, 1863 | |
| Nomada modocorum | |
| Nomada morrisoni Cresson, 1878 | |
| Nomada munda Cresson, 1878 | |
| Nomada mutans Cockerell, 1910 | |
| Nomada neomexicana Cockerell, 1903 | |
| Nomada obliquella Fowler, 1902 | |
| Nomada obliterata Cresson, 1863 | Obliterated Cuckoo Nomad Bee |
| Nomada obscurella Fowler, 1902 | |
| Nomada ochlerata Mitchell, 1962 | |
| Nomada odontocera Cockerell, 1916 | |
| Nomada opacella Timberlake, 1954 | |
| Nomada opposita Cresson, 1878 | |
| Nomada orbitalis Perez, 1913 | |
| Nomada oregonica Cockerell, 1903 | |
| Nomada ornithica Cockerell, 1906 | |
| Nomada osborni Cockerell, 1911 | |
| Nomada ovata Robertson, 1903 | Orange-Tailed Nomad |
| Nomada pacata | |
| Nomada packardiella Cockerell, 1906 | |
| Nomada pallidella Cockerell, 1905 | |
| Nomada pallidelutea Swenk, 1915 | |
| Nomada panzeri Lepeletier, 1841 | Panzer's nomad bee |
| Nomada parallela Swenk, 1913 | |
| Nomada parata Cresson, 1878 | |
| Nomada parkeri Evans, 1972 | |
| Nomada pascoensis Cockerell, 1903 | |
| Nomada pecosensis Cockerell, 1903 | |
| Nomada perbella Viereck, 1905 | |
| Nomada perplexa Cresson, 1863 | |
| Nomada perplexans Cockerell, 1910 | |
| Nomada physura Cockerell, 1903 | |
| Nomada placitensis Cockerell, 1903 | |
| Nomada portalensis Broemeling, 1989 | |
| Nomada proxima Cresson, 1863 | |
| Nomada pseudops (Cockerell, 1905) | ⇒ Nomada bethunei Cockerell, 1903 |
| Nomada psilocera Kohl, 1908 | |
| Nomada pulsatillae Cockerell, 1906 | |
| Nomada putnami Cresson, 1876 | |
| Nomada pygmaea Cresson, 1863 | Pygmy Cuckoo Nomad Bee |
| Nomada pyrrha Cockerell, 1916 | |
| Nomada rhodalis Cockerell, 1903 | |
| Nomada rhodomelas Cockerell, 1903 | |
| Nomada rhodosoma Cockerell, 1903 | |
| Nomada rhodosoma rhodosomella (Cockerell, 1903) | ⇒ Nomada rhodosoma Cockerell, 1903 |
| Nomada rhodotricha Cockerell, 1903 | |
| Nomada rhodoxantha Cockerell, 1905 | |
| Nomada ridingsii Cresson, 1878 | |
| Nomada rivalis Cresson, 1878 | |
| Nomada robertsonella Cockerell, 1903 | |
| Nomada rodecki Mitchell, 1962 | |
| Nomada rohweri Cockerell, 1906 | |
| Nomada rubi Swenk, 1915 | |
| Nomada rubicunda Olivier, 1811 | Littleleaf mockorange |
| Nomada rubrella Cockerell, 1905 | |
| Nomada rufipes Fabricius, 1793 | Black-horned nomad bee |
| Nomada ruidosensis Cockerell, 1903 | |
| Nomada salicis Robertson, 1900 | |
| Nomada sanctaecrucis Cockerell, 1903 | |
| Nomada sayi Robertson, 1893 | |
| Nomada schwarzi Cockerell, 1903 | |
| Nomada schwarzi contractula (Cockerell, 1903) | ⇒ Nomada schwarzi Cockerell, 1903 |
| Nomada scita Cresson, 1878 | |
| Nomada scitiformis Cockerell, 1903 | |
| Nomada sedae (Cockerell, 1919) | ⇒ Nomada sedi Cockerell, 1919 |
| Nomada semiscita Cockerell, 1904 | |
| Nomada semisuavis Cockerell, 1910 | |
| Nomada seneciophila Mitchell, 1962 | |
| Nomada siccorum Cockerell, 1919 | |
| Nomada simplicicoxa Swenk, 1915 | |
| Nomada skinneri Cockerell, 1908 | |
| Nomada snowii Cresson, 1878 | |
| Nomada sobrina Mitchell, 1962 | |
| Nomada sophiarum Cockerell, 1903 | |
| Nomada sphaerogaster Cockerell, 1903 | |
| Nomada striata Fabricius, 1793 | Blunt-jawed nomad bee |
| Nomada suavis Cresson, 1878 | |
| Nomada subaccepta Cockerell, 1907 | |
| Nomada subangusta Cockerell, 1903 | |
| Nomada subcornuta (Kirby, 1802) | ⇒ Nomada fulvicornis Fabricius, 1793 |
| Nomada subgracilis Cockerell, 1903 | |
| Nomada subrubi Swenk, 1915 | |
| Nomada subrutila Lovell & Coc..., 1905 | |
| Nomada subsimilis Cockerell, 1903 | |
| Nomada subvicinalis Cockerell, 1903 | |
| Nomada suda Cresson, 1879 | |
| Nomada superba Cresson, 1863 | Superb Nomada |
| Nomada taraxacella Cockerell, 1903 | |
| Nomada texana Cresson, 1872 | Texas Nomad Bee |
| Nomada tiftonensis Cockerell, 1903 | Tifton Nomad Bee |
| Nomada timberlakei Broemeling, 1989 | |
| Nomada tintinnabulum Cockerell, 1903 | |
| Nomada townesi Mitchell, 1962 | |
| Nomada tricurta Swenk, 1915 | |
| Nomada truttarum Cockerell, 1909 | |
| Nomada tyrrellensis Mitchell, 1962 | |
| Nomada uhleri Cockerell, 1905 | |
| Nomada ulsterensis Mitchell, 1962 | |
| Nomada ultima Cockerell, 1903 | |
| Nomada ultimella Cockerell, 1903 | |
| Nomada undulaticornis Cockerell, 1906 | |
| Nomada utahensis Moalif, 1988 | Utah Nomada |
| Nomada utensis Swenk, 1913 | |
| Nomada valida Smith, 1854 | True Cuckoo Nomad Bee |
| Nomada vallesina Cockerell, 1906 | |
| Nomada vallesina honorata (Cockerell, 1922) | ⇒ Nomada vallesina Cockerell, 1906 |
| Nomada vegana (Cockerell, 1903) | ⇒ Nomada modesta Cresson, 1863 |
| Nomada verecunda Cresson, 1879 | |
| Nomada vexator Cockerell, 1909 | |
| Nomada vicinalis Cresson, 1878 | |
| Nomada vicinalis infrarubens (Cockerell, 1905) | ⇒ Nomada vicinalis Cresson, 1878 |
| Nomada vicinalis vicinalis Cresson, 1878 | |
| Nomada victrix Cockerell, 1911 | |
| Nomada vierecki Cockerell, 1903 | |
| Nomada vincta Say, 1837 | Bounded Cuckoo Nomad Bee |
| Nomada vinnula | |
| Nomada washingtoni Cockerell, 1903 | |
| Nomada wheeleri Cockerell, 1903 | |
| Nomada wheeleri engelmanniae (Cockerell, 1911) | ⇒ Nomada wheeleri Cockerell, 1903 |
| Nomada wheeleri wheeleri Cockerell, 1903 | |
| Nomada wisconsinensis (Graenicher, 1911) | ⇒ Nomada fervida Smith, 1854 |
| Nomada wootonella Cockerell, 1909 | |
| Nomada xantholepis Cockerell, 1911 | |
| Nomada xanthophila Cockerell, 1900 | |
| Nomada xanthura Cockerell, 1908 | Yellow-Striped Cuckoo Nomad Bee |
| Nomada zebrata Cresson, 1878 | |
| Nomada ziziae Swenk, 1915 | |
| Oreopasites (Oreopasites) arizonica Linsley, 1941 | |
| Oreopasites (Oreopasites) favreauae Rozen, 1992 | |
| Oreopasites (Oreopasites) scituli Cockerell, 1906 | |
| Oreopasites (Oreopasites) vanduzeei Cockerell, 1925 | |
| Oreopasites (Perditopasites) barbarae Rozen, 1992 | |
| Oreopasites hurdi Rozen, 1992 | |
| Oreopasites linsleyi Rozen, 1992 | |
| Oreopasites powelli Rozen, 1992 | |
| Paranomada californica Linsley, 1945 | |
| Paranomada nitida Linsley & Mi..., 1937 | |
| Paranomada velutina Linsley, 1939 | |
| Pasites friesei Cockerell, 1910 | |
| Phileremulus cockerelli | |
| Pseudepeolus guttata | |
| Pyrrhomelecta anthophorae | |
| Rhopalolemma robertsi Roig-Alsina, 1991 | |
| Rhopalolemma rotundiceps Roig-Alsina, 1997 | |
| Townsendiella californica Michener, 1936 | |
| Townsendiella pulchra Crawford, 1916 | |
| Townsendiella rufiventris Linsley, 1942 | |
| Triepeolus agaricifer (Cockerell, 1907) | ⇒ Epeolus flavofasciatus Smith, 1879 |
| Triepeolus ancoratus Cockerell, 1916 | |
| Triepeolus antiochensis Rightmyer, 2008 | |
| Triepeolus argentimus Rightmyer, 2008 | |
| Triepeolus argus Rightmyer, 2008 | |
| Triepeolus atripes (Mitchell, 1962) | ⇒ Triepeolus micropygius Robertson, 1903 |
| Triepeolus balteatus Cockerell, 1921 | |
| Triepeolus banksi | |
| Triepeolus bardus (Cresson, 1878) | ⇒ Triepeolus distinctus Cresson, 1878 |
| Triepeolus bimorulus Rightmyer, 2008 | |
| Triepeolus californicus Cresson, 1878 | |
| Triepeolus charlesi Rightmyer, 2008 | |
| Triepeolus circumculus Rightmyer, 2008 | |
| Triepeolus concavus (Cresson, 1878) | ⇒ Doeringiella concava |
| Triepeolus coquilletti (Cockerell, 1905) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus cressonii Robertson, 1897 | Eucera Cuckoo Nomad Bee |
| Triepeolus custeri Cockerell, 1926 | |
| Triepeolus cyclurus Cockerell, 1923 | |
| Triepeolus dacotensis Stevens, 1919 | |
| Triepeolus denverensis Cockerell, 1910 | |
| Triepeolus diffusus Rightmyer, 2008 | |
| Triepeolus dilutus Rightmyer, 2008 | |
| Triepeolus distinctus Cresson, 1878 | |
| Triepeolus diversipes Cockerell, 1924 | |
| Triepeolus donatus Smith, 1854 | Thistle Longhorn-Cuckoo |
| Triepeolus eldoradensis Cockerell, 1910 | |
| Triepeolus eldredi (Cockerell, 1907) | ⇒ Triepeolus texanus Cresson, 1878 |
| Triepeolus eliseae Rightmyer, 2017 | |
| Triepeolus engeli Rightmyer, 2008 | |
| Triepeolus fortis (Cockerell, 1921) | ⇒ Triepeolus martini Cockerell, 1900 |
| Triepeolus fraserae (Cockerell, 1904) | ⇒ Triepeolus cressonii Robertson, 1897 |
| Triepeolus gabrielis | |
| Triepeolus georgicus Mitchell, 1962 | |
| Triepeolus grandis Friese, 1917 | |
| Triepeolus grindeliae Cockerell, 1907 | |
| Triepeolus helianthi Robertson, 1897 | Sunflower Cuckoo Nomad Bee |
| Triepeolus helianthi arizonensis (Cockerell, 1904) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus helianthi grandior (Cockerell, 1919) | ⇒ Triepeolus texanus Cresson, 1878 |
| Triepeolus helianthi helianthi (Robertson, 1897) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus helianthi pacificus (Cockerell, 1919) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus heterurus (Cockerell & ..., 1924) | ⇒ Triepeolus utahensis Cockerell, 1921 |
| Triepeolus hopkinsi Cockerell, 1905 | |
| Triepeolus intrepidus Smith, 1879 | |
| Triepeolus isocomae Cockerell, 1904 | |
| Triepeolus isohedrus Rightmyer, 2008 | |
| Triepeolus joliae Rightmyer, 2008 | |
| Triepeolus junctus Mitchell, 1962 | |
| Triepeolus kathrynae Rozen, 1989 | |
| Triepeolus laticaudus Cockerell, 1921 | |
| Triepeolus lectiformis Cockerell, 1925 | |
| Triepeolus lestes (Cockerell, 1921) | ⇒ Triepeolus subalpinus Cockerell, 1910 |
| Triepeolus lineatulus (Cockerell & ..., 1924) | ⇒ Triepeolus helianthi Robertson, 1897 |
| Triepeolus loganensis Cockerell, 1925 | |
| Triepeolus loomisorum Rozen, 1989 | |
| Triepeolus lunatus Say, 1824 | |
| Triepeolus lunatus concolor (Robertson, 1898) | ⇒ Triepeolus lunatus Say, 1824 |
| Triepeolus lunatus lunatus (Say, 1824) | ⇒ Triepeolus lunatus Say, 1824 |
| Triepeolus lusor Cockerell, 1925 | |
| Triepeolus margaretae Rightmyer, 2008 | |
| Triepeolus martini Cockerell, 1900 | |
| Triepeolus matildae Rightmyer, 2014 | |
| Triepeolus melanarius Rightmyer, 2008 | |
| Triepeolus mesillae (Cockerell, 1904) | ⇒ Triepeolus distinctus Cresson, 1878 |
| Triepeolus mexicanus Cresson, 1878 | |
| Triepeolus michiganensis Mitchell, 1962 | Michigan Cuckoo Nomad Bee |
| Triepeolus micropygius Robertson, 1903 | |
| Triepeolus micropygius atripes Mitchell, 1962 | |
| Triepeolus micropygius micropygius (Robertson, 1903) | ⇒ Triepeolus micropygius Robertson, 1903 |
| Triepeolus mitchelli Hurd, 1979 | |
| Triepeolus monardae Mitchell, 1962 | |
| Triepeolus nevadensis Cresson, 1878 | |
| Triepeolus nigrihirtus Mitchell, 1962 | |
| Triepeolus norae Cockerell, 1907 | |
| Triepeolus obliteratus Graenicher, 1911 | |
| Triepeolus occidentalis Cresson, 1878 | |
| Triepeolus paenepectoralis Viereck, 1905 | Twining screwstem |
| Triepeolus parvus Rightmyer, 2008 | |
| Triepeolus pectoralis Robertson, 1897 | Goldenrod Longhorn-Cuckoo Bee |
| Triepeolus penicilliferus Brues, 1903 | |
| Triepeolus perpictus Rightmyer, 2008 | |
| Triepeolus phaeopygus Rightmyer, 2008 | |
| Triepeolus pimarum (Cockerell, 1904) | ⇒ Triepeolus distinctus Cresson, 1878 |
| Triepeolus punctoclypeus Rightmyer, 2008 | |
| Triepeolus quadrifasciatus Say, 1823 | |
| Triepeolus quadrifasciatus atlanticus (Mitchell, 1962) | ⇒ Triepeolus quadrifasciatus Say, 1823 |
| Triepeolus quadrifasciatus quadrifasciatus Say, 1823 | |
| Triepeolus rectangularis (Cockerell, 1921) | ⇒ Triepeolus texanus Cresson, 1878 |
| Triepeolus remigatus Fabricius, 1804 | Hairy cockle |
| Triepeolus rhododontus Cockerell, 1921 | |
| Triepeolus robustus Cresson, 1878 | |
| Triepeolus rohweri Cockerell, 1911 | |
| Triepeolus rufithorax Graenicher, 1928 | |
| Triepeolus rufoclypeus Fox, 1891 | |
| Triepeolus sandhousae Cockerell, 1925 | |
| Triepeolus sarothrinus Cockerell, 1929 | |
| Triepeolus scelestus Cresson, 1878 | |
| Triepeolus segregatus Cockerell, 1900 | |
| Triepeolus simplex Robertson, 1903 | Simple Longhorn-Cuckoo |
| Triepeolus subalpinus Cockerell, 1910 | |
| Triepeolus sublunatus (Cockerell, 1907) | ⇒ Triepeolus mitchelli Hurd, 1979 |
| Triepeolus subnitens Cockerell & ..., 1929 | |
| Triepeolus tanneri Cockerell, 1928 | |
| Triepeolus texanus Cresson, 1878 | |
| Triepeolus texanus nigripes (Cockerell, 1898) | ⇒ Triepeolus remigatus Fabricius, 1804 |
| Triepeolus timberlakei Cockerell, 1929 | |
| Triepeolus townsendi Cockerell, 1907 | |
| Triepeolus utahensis Cockerell, 1921 | |
| Triepeolus vandykei (Cockerell & ..., 1924) | ⇒ Triepeolus paenepectoralis Viereck, 1905 |
| Triepeolus verbesinae Cockerell, 1897 | |
| Triepeolus vernus Rightmyer, 2008 | |
| Triepeolus warriti Rightmyer, 2008 | |
| Triepeolus wyomingensis (Cockerell, 1905) | ⇒ Triepeolus texanus Cresson, 1878 |
| Triopasites penniger Cockerell, 1894 | |
