| Caenoprosopina holmbergi Roig-Alsina, 1987 | |
| Caenoprosopis crabronina Holmberg, 1887 | |
| Gnathias perbella | |
| 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 stevensi (Swenk, 1913) | ⇒ Nomada vicina Cresson, 1863 |
| Nomada vicina vicina Cresson, 1863 | |
| Nomada (Nomadita) placida Cresson, 1863 | |
| Nomada (Nomadula) ruficornis Linnaeus, 1758 | Fork-Jawed Nomad |
| Nomada (Xanthidium) coquilletti Cockerell, 1903 | |
| Nomada abnormis Ducke, 1912 | |
| Nomada accepta Cresson, 1878 | |
| Nomada adducta Cresson, 1878 | |
| Nomada adusta Smith, 1875 | |
| Nomada advena Smith, 1860 | |
| 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 aldrichi Cockerell, 1910 | |
| Nomada alpha Cockerell, 1905 | |
| Nomada alpha alpha Cockerell, 1905 | |
| Nomada alpha dialpha (Cockerell, 1921) | ⇒ Nomada alpha Cockerell, 1905 |
| Nomada alpha paralpha (Cockerell, 1921) | ⇒ Nomada alpha Cockerell, 1905 |
| Nomada amoena Cresson, 1863 | |
| Nomada amorphae Swenk, 1913 | |
| Nomada angelarum Cockerell, 1903 | |
| Nomada angulata Swenk, 1913 | |
| Nomada antennata Meade-Waldo, 1913 | |
| Nomada antonita | |
| Nomada aprilina Swenk, 1913 | |
| 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 aztecorum Cockerell, 1903 | |
| Nomada aztecorum aztecorum Cockerell, 1903 | |
| Nomada aztecorum pratensis (Cockerell, 1919) | ⇒ Nomada aztecorum Cockerell, 1903 |
| Nomada belfragei Cresson, 1878 | |
| Nomada besseyi Swenk, 1913 | |
| Nomada bethunei Cockerell, 1903 | Bethune'S Cuckoo Nomad Bee |
| Nomada beulahensis Cockerell, 1903 | |
| Nomada bicellularis Ducke, 1908 | |
| Nomada bicrista Swenk, 1913 | |
| Nomada bifasciata Olivier, 1811 | Dusky-horned nomad bee |
| Nomada bifurcata Cockerell, 1903 | |
| Nomada bisetosa Swenk, 1913 | |
| Nomada bishoppi Cockerell, 1911 | |
| Nomada bisignata Say, 1824 | |
| Nomada bohartorum Moalif, 1988 | |
| Nomada bonaerensis Holmberg, 1886 | |
| Nomada brewsterae Broemeling, 1989 | |
| Nomada californiae Cockerell, 1903 | |
| Nomada calloxantha Cockerell, 1921 | |
| Nomada capillata Mitchell, 1962 | |
| Nomada capitalis Mitchell, 1962 | |
| Nomada carcaranensis (Cockerell, 1917) | ⇒ Nomada pampicola Holmberg, 1886 |
| Nomada carinicauda Cockerell, 1921 | |
| Nomada carolinae | |
| Nomada castellana Dusmet y Alonso, 1913 | Castell's nomad bee |
| Nomada chacoana Hurrell & Ro..., 2009 | |
| Nomada cincta Rossi, 1792 | |
| Nomada citrina Cresson, 1878 | |
| Nomada citrina citrina Cresson, 1878 | |
| Nomada citrina flavomarginata (Swenk, 1913) | ⇒ Nomada citrina Cresson, 1878 |
| Nomada citrina rufula (Cockerell, 1903) | ⇒ Nomada citrina Cresson, 1878 |
| Nomada civilis Cresson, 1878 | |
| Nomada civilis civilis Cresson, 1878 | |
| Nomada civilis spokanensis (Cockerell, 1910) | ⇒ Nomada civilis Cresson, 1878 |
| Nomada clarescens Cockerell, 1921 | |
| 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 concinnula Cockerell, 1921 | |
| Nomada confusa Schwarz & Gu..., 2004 | |
| Nomada corcyraea Schmiedeknecht, 1882 | |
| Nomada cordleyi Cresson, 1903 | |
| Nomada cornelliana | |
| Nomada coronata Perez, 1896 | |
| Nomada corvallisensis Cresson, 1903 | |
| Nomada costalis Brèthes, 1909 | |
| Nomada costaricensis Schrottky, 1920 | |
| Nomada crassula | |
| Nomada crawfordi Cockerell, 1905 | |
| Nomada crawfordi crawfordi Cockerell, 1905 | |
| Nomada crawfordi lachrymosa (Cockerell, 1921) | ⇒ Nomada crawfordi Cockerell, 1905 |
| Nomada cressoni | |
| 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 cuneatus Robertson, 1903 | |
| Nomada custeriana Cockerell, 1911 | |
| Nomada cymbalariae Cockerell, 1906 | |
| Nomada davidsoni Cresson, 1903 | |
| Nomada debilis Timberlake, 1954 | |
| 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 dreisbachorum Moalif, 1988 | |
| Nomada durangoae Broemeling, 1989 | |
| 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 erythraea Dalla Torre, 1896 | |
| Nomada erythrochroa Cresson, 1903 | |
| Nomada erythrospila Cockerell, 1916 | |
| Nomada excellens | |
| Nomada fervens Smith, 1873 | Alternate-leaf dogwood |
| Nomada fervida Smith, 1854 | |
| Nomada festiva (Cresson, 1863) | ⇒ Nomada italica Dalla Torre ..., 1894 |
| Nomada flammigera Cockerell, 1906 | |
| Nomada flavescens Friese, 1917 | |
| Nomada flaviceps Cresson, 1865 | Winged surfclam |
| 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 fragilis mesosticta (Cockerell, 1939) | ⇒ Nomada fragilis Cresson, 1878 |
| Nomada frankei Cockerell, 1929 | |
| Nomada frieseana Cockerell, 1904 | |
| Nomada fuscicincta Swenk, 1915 | |
| Nomada garciana Cockerell, 1907 | |
| Nomada gibbosa Viereck, 1905 | Twining screwstem |
| Nomada gillettei Cockerell, 1905 | |
| Nomada glaucopis Perez, 1890 | |
| 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 henningeri Evans, 1972 | |
| Nomada hera Schwarz, 1965 | |
| Nomada hesperia Cockerell, 1903 | |
| Nomada hesperia falconis (Rodeck, 1947) | ⇒ Nomada hesperia Cockerell, 1903 |
| Nomada hesperia hesperia Cockerell, 1903 | |
| Nomada heterosticta Cockerell, 1921 | |
| Nomada hirtiventris Schwarz, 1990 | |
| Nomada holmbergiana Hurrell & Ro..., 2009 | |
| Nomada hondurasica Cockerell, 1949 | |
| Nomada hoodiana Cockerell, 1903 | |
| Nomada hurdi Evans, 1972 | |
| Nomada hydrophylli Swenk, 1915 | |
| Nomada idahoensis Swenk, 1913 | |
| 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 infrequens Smith, 1879 | Bunchberry dogwood |
| Nomada interruptella Fowler, 1902 | |
| Nomada italica Dalla Torre ..., 1894 | |
| Nomada itamera Cockerell, 1910 | |
| Nomada jamaicensis Cockerell, 1912 | |
| 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 krombeini Schwarz, 1966 | |
| Nomada krugii Cresson, 1878 | |
| Nomada lamarensis Cockerell, 1905 | |
| Nomada laramiensis Swenk, 1913 | |
| Nomada lathburiana Kirby, 1802 | Lathbury's nomad bee |
| 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 limata Cresson, 1878 | |
| Nomada limata limata Cresson, 1878 | |
| Nomada limata xanthaspis Cockerell, 1949 | |
| Nomada linsleyi Evans, 1972 | |
| Nomada lippiae Cockerell, 1903 | |
| Nomada lippiae lippiae Cockerell, 1903 | |
| Nomada lippiae sublippiae (Cockerell, 1907) | ⇒ Nomada lippiae Cockerell, 1903 |
| Nomada longicornis Friese, 1920 | |
| Nomada longula Hurrell & Ro..., 2009 | |
| 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 medellinenses Velez-Ruiz &..., 2013 | |
| Nomada media Mitchell, 1962 | |
| Nomada mediana Swenk, 1913 | |
| Nomada melanoptera Cockerell, 1921 | |
| Nomada melanosoma Cockerell, 1916 | |
| Nomada melliventris Cresson, 1878 | |
| Nomada mendica Mitchell, 1962 | |
| Nomada mera | |
| Nomada mesopotamica Hurrell & Ro..., 2009 | |
| Nomada mexicana Cresson, 1878 | |
| Nomada mimus Cockerell, 1916 | |
| Nomada miniata Smith, 1854 | |
| Nomada minima Mitchell, 1962 | |
| Nomada minuta Swenk, 1913 | |
| Nomada missionica Hurrell & Ro..., 2009 | |
| Nomada mitchelli Cockerell, 1911 | |
| Nomada modesta Cresson, 1863 | |
| Nomada modocorum | |
| Nomada montezumia Smith, 1879 | Bunchberry dogwood |
| Nomada morrisoni Cresson, 1878 | |
| Nomada multicolor Ducke, 1911 | |
| Nomada munda Cresson, 1878 | |
| Nomada mutans Cockerell, 1910 | |
| Nomada neomexicana Cockerell, 1903 | |
| Nomada nigrescens Friese, 1921 | Pickle Springs amphipod |
| Nomada nigrociliata Swenk, 1913 | |
| Nomada nigrocincta Smith, 1879 | Bunchberry dogwood |
| Nomada nigrofasciata Swenk, 1913 | |
| Nomada nitidiceps Cockerell, 1931 | |
| Nomada obliquella Fowler, 1902 | |
| Nomada obliterata Cresson, 1863 | Obliterated Cuckoo Nomad Bee |
| Nomada obscurella Fowler, 1902 | |
| Nomada obstusata Swenk, 1915 | |
| Nomada obtusata (Swenk, 1915) | ⇒ Nomada obstusata Swenk, 1915 |
| Nomada ochlerata Mitchell, 1962 | |
| Nomada ochrohirta Swenk, 1913 | |
| Nomada odontocera Cockerell, 1916 | |
| Nomada opacella Timberlake, 1954 | |
| Nomada opposita Cresson, 1878 | |
| Nomada orba Mitchell, 1962 | |
| Nomada orbitalis Perez, 1913 | |
| Nomada orcusella Cockerell, 1910 | |
| Nomada oregonica Cockerell, 1903 | |
| Nomada ornithica Cockerell, 1906 | |
| Nomada orophila Cockerell, 1921 | |
| Nomada osborni Cockerell, 1911 | |
| Nomada ovata Robertson, 1903 | Orange-Tailed Nomad |
| Nomada ovatus Robertson, 1903 | |
| Nomada pacata | |
| Nomada packardiella Cockerell, 1906 | |
| Nomada pallidella Cockerell, 1905 | |
| Nomada pallidelutea Swenk, 1915 | |
| Nomada pallidipicta Swenk, 1913 | |
| Nomada pampicola Holmberg, 1886 | |
| Nomada panamensis Michener, 1954 | Long-legged cave amphipod |
| 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 perivincta Cockerell, 1905 | |
| Nomada perivincta perivincta Cockerell, 1905 | |
| Nomada perivincta semirufula (Cockerell, 1905) | ⇒ Nomada perivincta Cockerell, 1905 |
| Nomada perplexa Cresson, 1863 | |
| Nomada perplexans Cockerell, 1910 | |
| Nomada physura Cockerell, 1903 | |
| Nomada pilipes Cresson, 1865 | |
| Nomada placitensis Cockerell, 1903 | |
| Nomada polybioides Ducke, 1908 | |
| Nomada portalensis Broemeling, 1989 | |
| Nomada propinqua Schmiedeknecht, 1882 | |
| 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 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 rohweri aureopilosa (Swenk, 1913) | ⇒ Nomada rohweri Cockerell, 1906 |
| Nomada rohweri rohweri Cockerell, 1906 | |
| Nomada rubi Swenk, 1915 | |
| Nomada rubicunda Olivier, 1811 | Littleleaf mockorange |
| Nomada rubrella Cockerell, 1905 | |
| Nomada rubrica Provancher, 1896 | |
| Nomada rufipes Fabricius, 1793 | Black-horned nomad bee |
| Nomada rugicollis Friese, 1917 | |
| Nomada rugicollis rugicollis Friese, 1917 | |
| Nomada ruidosensis Cockerell, 1903 | |
| Nomada salicicola Swenk, 1913 | |
| Nomada salicis Robertson, 1900 | |
| Nomada saltillo Broemeling, 1988 | |
| Nomada sanctaecrucis Cockerell, 1903 | |
| Nomada sayi Robertson, 1893 | |
| Nomada schwarzi Cockerell, 1903 | |
| Nomada schwarzi contractula (Cockerell, 1903) | ⇒ Nomada schwarzi Cockerell, 1903 |
| Nomada schwarzi schwarzi Cockerell, 1903 | |
| Nomada scita Cresson, 1878 | |
| Nomada scitiformis Cockerell, 1903 | |
| Nomada sedae (Cockerell, 1919) | ⇒ Nomada sedi Cockerell, 1919 |
| Nomada sedi Cockerell, 1919 | |
| Nomada semirugosa Cockerell, 1929 | |
| Nomada semiscita Cockerell, 1904 | |
| Nomada semisuavis Cockerell, 1910 | |
| Nomada seneciophila Mitchell, 1962 | |
| Nomada siccorum Cockerell, 1919 | |
| Nomada simplicicoxa Swenk, 1915 | |
| Nomada siouxensis Swenk, 1913 | |
| Nomada skinneri Cockerell, 1908 | |
| Nomada snowii Cresson, 1878 | |
| Nomada sobrina Mitchell, 1962 | |
| Nomada sophiarum Cockerell, 1903 | |
| Nomada sphaerogaster Cockerell, 1903 | |
| Nomada suavis Cresson, 1878 | |
| Nomada subaccepta Cockerell, 1907 | |
| Nomada subangusta Cockerell, 1903 | |
| Nomada subgracilis Cockerell, 1903 | |
| Nomada subnigrocincta Swenk, 1915 | |
| Nomada subpacata Swenk, 1913 | |
| Nomada subrubi Swenk, 1915 | |
| Nomada subrutila Lovell & Coc..., 1905 | |
| Nomada subscopifera Ducke, 1908 | |
| Nomada subsimilis Cockerell, 1903 | |
| Nomada subvicinalis Cockerell, 1903 | |
| Nomada suda Cresson, 1879 | |
| Nomada suffossa Cockerell, 1922 | |
| Nomada superba Cresson, 1863 | Superb Nomada |
| Nomada superba malvastri (Swenk, 1913) | ⇒ Nomada superba Cresson, 1863 |
| Nomada superba superba Cresson, 1863 | |
| Nomada swenki Schwarz, 1966 | |
| Nomada taraxacella Cockerell, 1903 | |
| Nomada tenuicornis Cockerell, 1949 | |
| Nomada tepoztlan Moalif, 1988 | |
| Nomada texana Cresson, 1872 | Texas Nomad Bee |
| Nomada tibialis (Cresson, 1865) | ⇒ Xeromelecta tibialis Fabricius, 1793 |
| Nomada tiftonensis Cockerell, 1903 | Tifton Nomad Bee |
| Nomada timberlakei Broemeling, 1989 | |
| Nomada tintinnabulum Cockerell, 1903 | |
| Nomada townesi Mitchell, 1962 | |
| Nomada trapidoi Michener, 1954 | Long-legged cave amphipod |
| Nomada tricurta Swenk, 1915 | |
| Nomada truttarum Cockerell, 1909 | |
| Nomada turrigera Hurrell & Ro..., 2009 | |
| Nomada tyrrellensis Mitchell, 1962 | |
| Nomada uhleri Cockerell, 1905 | |
| Nomada ulsterensis Mitchell, 1962 | |
| Nomada ultima Cockerell, 1903 | |
| Nomada ultimella Cockerell, 1903 | |
| Nomada ultimella septentrionalis (Swenk, 1913) | ⇒ Nomada ultimella Cockerell, 1903 |
| Nomada ultimella 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 vallesina vallesina Cockerell, 1906 | |
| Nomada vegana (Cockerell, 1903) | ⇒ Nomada modesta Cresson, 1863 |
| Nomada velutina Swenk, 1913 | |
| Nomada verecunda Cresson, 1879 | |
| Nomada vernonensis Cockerell, 1916 | |
| 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 vitticollis Cresson, 1878 | |
| Nomada vulpis Cockerell, 1921 | |
| 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 wyomingensis Swenk, 1913 | |
| Nomada xantholepis Cockerell, 1911 | |
| Nomada xanthophila Cockerell, 1900 | |
| Nomada xanthopus Friese, 1921 | Pickle Springs amphipod |
| Nomada xanthura Cockerell, 1908 | Yellow-Striped Cuckoo Nomad Bee |
| Nomada zamoranica Cockerell, 1949 | |
| Nomada zebrata Cresson, 1878 | |
| Nomada ziziae Swenk, 1915 | |
