Nomada

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Hymenopterida
Ordo: Hymenoptera
Subordo: Apocrita
Superfamilia: Apoidea

Familia: Apidae
Subfamilia: Nomadinae
Tribus: Nomadini
Genus: Nomada
Species (705): N. abnormis – N. abtana – N. abyssinica – N. accentifera – N. accepta – N. acutilabris – N. adducta – N. adusta – N. advena – N. aethiopica – N. affabilis – N. africana – N. agrestis – N. agynia – N. albidemaculata – N. alboguttata – N. alboscutellata – N. aldrichi – N. algira – N. alpha – N. alpigena – N. amabilis – N. amamiensis – N. amoena – N. amorphae – N. amurensis – N. angelarum – N. angulata – N. annulata – N. anpingensis – N. antennata – N. aprilina – N. aquilarum – N. arasiana – N. arenicola – N. argentata – N. argentea – N. ariasi – N. arizonica – N. armata – N. armatella – N. arrogans – N. articulata – N. ashabadensis – N. ashmeadi – N. asozuana – N. asteris – N. astori – N. aswensis – N. atrocincta – N. atrofrontata – N. atrohirta – N. atroscutellaris – N. attenuata – N. attrita – N. augustiana – N. aurantifascia – N. australensis – N. australis – N. austriaca – N. autumnalis – N. avalonica – N. azaleae – N. aztecorum – N. babai – N. babiyi – N. baccata – N. bakeri – N. baldiniana – N. banahaonis – N. banksi – N. barbilabris – N. barcelonensis – N. basalis – N. beaumonti – N. belfragei – N. bella – N. besseyi – N. bethunei – N. beulahensis – N. bicellula – N. bicellularis – N. bicrista – N. bifasciata – N. bifurcata – N. biguttata – N. biroi – N. bisetosa – N. bisignata – N. bispinosa – N. blepharipes – N. bluethgeni – N. bohartorum – N. bolivari – N. bonaerensis – N. bouceki – N. braunsiana – N. brevis – N. breviuscula – N. brewsterae – N. californiae – N. calimorpha – N. calloptera – N. calloxantha – N. capillata – N. carinicauda – N. carnifex – N. carthaginensis – N. caspia – N. castellana – N. ceanothi – N. centenarii – N. ceylonica – N. chacoana – N. cherkesiana – N. chrysopyga – N. citrina – N. civilis – N. clarescens – N. clarkii – N. cleopatra – N. collarae – N. collinsiana – N. coloradella – N. coloradensis – N. comparata – N. composita – N. concessa – N. concinnula – N. concolor – N. confinis – N. confusa – N. conjungens – N. connectens – N. consobrina – N. conspicua – N. coquilletti – N. corcyraea – N. cordilabris – N. cordillera – N. cordleyi – N. coronata – N. corvallisensis – N. costalis – N. costaricensis – N. coxalis – N. crawfordi – N. cressonii – N. cristata – N. crotchii – N. crucis – N. crudelis – N. cruenta – N. cubensis – N. cuneata – N. curvispinosa – N. custeriana – N. cymbalariae – N. cypriaca – N. cypricola – N. dahli – N. davidsoni – N. debilis – N. decempunctata – N. decepta – N. dentariae – N. denticulata – N. depressa – N. detrita – N. diacantha – N. dilucida – N. dira – N. discedens – N. discicollis – N. discrepans – N. dissessa – N. distinguenda – N. dives – N. dolosa – N. dreisbachi – N. dreisbachorum – N. dubia – N. duplex – N. durangoae – N. dybovskij – N. ecarinata – N. ednae – N. edwardsii – N. electa – N. electella – N. elegantula – N. elrodi – N. emarginata – N. eos – N. erigeronis – N. errans – N. erythra – N. erythraea – N. erythrocephala – N. erythrochroa – N. erythrospila – N. esana – N. exheredans – N. eximia – N. fabriciana – N. facilis – N. fallax – N. fedtschenkoi – N. felici – N. femoralis – N. fenestrata – N. ferghanica – N. ferruginata – N. fervens – N. fervida – N. festiva – N. flammigera – N. flava – N. flavescens – N. flaviceps – N. flavigenis – N. flavilabris – N. flavinervis – N. flavoguttata – N. flavopicta – N. flavozonata – N. florilega – N. fontis – N. formula – N. fragariae – N. fragilis – N. frankei – N. frieseana – N. fucata – N. fukuiana – N. fulvicornis – N. furva – N. furvoides – N. fusca – N. fuscicincta – N. fuscicornis – N. fuscipennis – N. galloisi – N. garciana – N. gibbosa – N. gigas – N. gillettei – N. ginran – N. glaberrima – N. glabriventris – N. glaucopis – N. goodeniana – N. gracilicornis – N. gracilis – N. graenicheri – N. grandior – N. grandis – N. gransassoi – N. grayi – N. gribodoi – N. gruenwaldti – N. guichardi – N. guichardiana – N. gusenleitneri – N. gutierreziae – N. guttulata – N. gyangensis – N. hackoda – N. hakonensis – N. hakusana – N. hammarstroemi – N. hararensis – N. harimensis – N. hemphilli – N. henningeri – N. hera – N. hesperia – N. heterosticta – N. hirticeps – N. hirtipes – N. hirtiventris – N. hispanica – N. holmbergiana – N. hondurasica – N. hoodiana – N. hummeli – N. hungarica – N. hurdi – N. hydrophylli – N. ibanezi – N. icazti – N. idahoensis – N. illinoensis – N. illustris – N. imbricata – N. immaculata – N. imperialis – N. incisa – N. inepta – N. inermis – N. infrequens – N. insignipes – N. insularis – N. integerrima – N. integra – N. interruptella – N. issikii – N. italica – N. itamera – N. jamaicensis – N. jammuensis – N. japonica – N. jaramense – N. javaensis – N. javanica – N. jennei – N. jocularis – N. kaguya – N. keroanensis – N. kervilleana – N. kincaidiana – N. kinosukei – N. klamathensis – N. kocoureki – N. kohli – N. koikensis – N. komarowi – N. koreana – N. kornosica – N. krombeini – N. krugii – N. kusdasi – N. ladakhiensis – N. lagrecai – N. lamarensis – N. lamellata – N. laramiensis – N. lateritia – N. lathburiana – N. laticrus – N. latifrons – N. lehighensis – N. lepida – N. leucophthalma – N. leucotricha – N. leucozona – N. lewisi – N. libata – N. limassolica – N. limata – N. linsenmaieri – N. linsleyi – N. lippiae – N. litigiosa – N. longicornis – N. longula – N. louisianae – N. lucidula – N. lucilla – N. lusca – N. lutea – N. luteola – N. luteoloides – N. luteopicta – N. maculata – N. maculicornis – N. maculifrons – N. maculipennis – N. maculiventer – N. makilingensis – N. malayana – N. malonella – N. malonina – N. margelanica – N. marginella – N. marshamella – N. martinella – N. mauritanica – N. mavromoustakisi – N. mckenziei – N. media – N. mediana – N. melanoptera – N. melanopyga – N. melanosoma – N. melanura – N. melathoracica – N. melliventris – N. mendica – N. merceti – N. mesopotamica – N. mexicana – N. micheneri – N. micronycha – N. mimus – N. mindanaonis – N. miniata – N. minima – N. minor – N. missionica – N. mitaii – N. mitchelli – N. mocsaryi – N. moeschleri – N. monozana – N. montezumia – N. montverna – N. moravitzii – N. moricei – N. morrisoni – N. multicolor – N. munakatai – N. munda – N. mutabilis – N. mutans – N. mutica – N. nausicaa – N. navasi – N. neomexicana – N. nepalensis – N. nesiotica – N. nigrescens – N. nigrociliata – N. nigrocincta – N. nigrofasciata – N. nigroflavida – N. nigrovaria – N. nipponica – N. nitida – N. nitidiceps – N. nobilis – N. noskiewiczi – N. numida – N. nuptura – N. obliquella – N. obliterata – N. obscura – N. obscurella – N. obscuriventris – N. obtusata – N. obtusifrons – N. ochlerata – N. ochrohirta – N. oculata – N. odontocera – N. odontophora – N. okamotonis – N. okubira – N. opaca – N. opacella – N. opposita – N. oralis – N. orba – N. orbitalis – N. orcusella – N. oregonica – N. ornithica – N. orophila – N. ortegai – N. osborni – N. ovaliceps – N. ovata – N. pacifica – N. packardiella – N. palavanica – N. pallidella – N. pallidelutea – N. pallidenotata – N. pallidipicta – N. pallispinosa – N. palmeni – N. pampicola – N. panamensis – N. panurgina – N. panurginoides – N. panzeri – N. papuana – N. parallela – N. parata – N. parkeri – N. parva – N. pascoensis – N. pastoralis – N. pecosensis – N. pectoralis – N. pekingensis – N. penangensis – N. perbella – N. perezi – N. perivincta – N. perplexa – N. perplexans – N. pervasor – N. pesenkoi – N. physura – N. piccioliana – N. picticauda – N. pictiscutum – N. pilipes – N. piliventris – N. placida – N. placitensis – N. platythorax – N. pleurosticta – N. plumosa – N. podagrica – N. polemediana – N. polyacantha – N. polybioides – N. polyodonta – N. portalensis – N. posthuma – N. priesneri – N. priscilla – N. propinqua – N. proxima – N. pruinosa – N. psilocera – N. pulawskii – N. pulchra – N. pulsatillae – N. pusilla – N. putnami – N. pygidialis – N. pygmaea – N. pyrifera – N. pyrrha – N. quadrifasciata – N. quinquefasciata – N. radoszkowskii – N. rhenana – N. rhinula – N. rhodalis – N. rhodomelas – N. rhodosoma – N. rhodotricha – N. rhodoxantha – N. ridingsii – N. rivalis – N. roberjeotiana – N. robertsonella – N. rodecki – N. rohweri – N. rostrata – N. rubi – N. rubicunda – N. rubiginosa – N. rubinii – N. rubra – N. rubrella – N. rubrica – N. rubricollis – N. rubricosa – N. rubricoxa – N. rubriventris – N. ruficollis – N. ruficornis – N. rufipes – N. rufoabdominalis – N. rugicollis – N. ruidosensis – N. sabaensis – N. sabulosa – N. salicicola – N. salicis – N. saltillo – N. sanctaecrucis – N. sandacana – N. sanguinea – N. sarta – N. sayi – N. scheuchli – N. schulthessi – N. schwarzi – N. scita – N. scitiformis – N. secessa – N. sedi – N. semirugosa – N. semiscita – N. semisuavis – N. sempiterna – N. seneciophila – N. serricornis – N. setteri – N. sexfasciata – N. sheppardana – N. shirakii – N. shoyozana – N. siccorum – N. siciliensis – N. sicula – N. signata – N. silvicola – N. similis – N. simplicicoxa – N. siouxensis – N. skinneri – N. snowii – N. sobrina – N. solitaria – N. sophiarum – N. sphaerogaster – N. spinicoxa – N. standfussi – N. sternalis – N. stigma – N. stoeckherti – N. striata – N. suavis – N. subaccepta – N. subangusta – N. subgracilis – N. subnigrocincta – N. subpacata – N. subpetiolata – N. subrubi – N. subrutila – N. subscopifera – N. subsimilis – N. subvicinalis – N. subvirescens – N. succincta – N. suda – N. suffossa – N. sulphurata – N. superba – N. sutepensis – N. swenki – N. sybarita – N. symphyti – N. taicho – N. taraxacella – N. temmasana – N. tenella – N. tenuicornis – N. tepoztlan – N. tesaceobalteata – N. texana – N. thersites – N. tibialis – N. tiendang – N. timberlakei – N. tintinnabulum – N. towada – N. townesi – N. transitoria – N. trapeziformis – N. trapidoi – N. tricurta – N. tridentirostris – N. trispinosa – N. truttarum – N. tsunekiana – N. tsushimae – N. turneri – N. turrigera – N. tyrrellensis – N. uhleri – N. ulsterensis – N. ultima – N. ultimella – N. undulaticornis – N. unispinosa – N. utahensis – N. utensis – N. valida – N. vallesina – N. vegana – N. velutina – N. verecunda – N. verna – N. vernonensis – N. vexator – N. vicina – N. vicinalis – N. victrix – N. vierecki – N. villosa – N. vincta – N. vitticollis – N. vulpis – N. waltoni – N. washingtoni – N. wheeleri – N. whiteheadi – N. wickwari – N. wootonella – N. wyomingensis – N. xantha – N. xantholepis – N. xanthophila – N. xanthopoda – N. xanthopus – N. xanthura – N. yagensis – N. yakushimensis – N. yanoi – N. yarrowi – N. yasha – N. zamoranica – N. zebrata – N. ziziae – N. zonalis – N. zonata

[source: Catalogue of Life: 2012 Annual Checklist, minus (5) N. heiligbrodtii – N. indusata – N. kingstonensis – N. pseudops – N. wisconsinensis
; plus (9) N. chacoana – N. holmbergiana – N. longula – N. mesopotamica – N. missionica – N. mitaii – N. setteri – N. tsushimae – N. turrigera
]
Name

Nomada Scopoli, 1770

Primary references

Alexander, B. A., and Schwarz, M. 1994. A catalog of the species of Nomada (Hymenoptera: Apoidea) of the world. University of Kansas Science Bulletin 55: 239-270.
Alexander, B. A. 1994. Species-groups and cladistic analysis of the cleptoparasitic bee genus Nomada. University of Kansas Science Bulletin 55: 175-238.
Scopoli 1770: Annus 4, 44; Fabricius 1775, Syst. Ent., 388.

With over 850 species, the genus Nomada is one of the largest genera in the family Apidae, and the largest genus of kleptoparasitic "cuckoo bees." Kleptoparasitic bees are so named because they enter the nests of a host and lay eggs there, stealing resources that the host has already collected.[1] The name "Nomada" is derived from the Greek word nomas (νομάς), meaning "roaming" or "wandering."[2]

Nomada parasitize many different types of bees as hosts, primarily the genus Andrena, but also Agapostemon, Melitta, Eucera and Exomalopsis.[3] As parasites, they lack a pollen-carrying scopa, and are mostly hairless, as they do not collect pollen to feed their offspring.[4] Like non-parasitic bees, adults are known to visit flowers and feed on nectar.[5] Given the lack of scopa and general behavior, they are considered poor pollinators.[6]

Appearance and identification

They are often extraordinarily wasp-like in appearance, with red, black, and yellow colors prevailing, and with smoky (infuscated) wings or wing tips. They vary greatly in appearance between species, and can be stripeless, or have yellow or white integumental markings on their abdomen. There are specialized patches of hair on the tip of the abdomen of female Nomada. Males have an obvious, often notched pygidial plate.[3] In general, females are easily identifiable by the lack of scopa, reduced body hair, thick exoskeleton, and mandibles.[7]

Separation of this genus from other Nomadinae can be difficult; details of the wing venation, and the nature of the patch of silvery setae at the tip of the female metasoma are the best distinguishing features.

Species of Nomada exhibit an unusual behavior where adult bees are observed to be sleeping by using only their mandibles to hold onto plants.[7]
Distribution

Nomada occur worldwide.[8] All known species parasitize ground-nesting bees, and their habitats and seasonality correlate with their hosts.[9] Ground nesting bees nest in soil, either in open habitats or in ones covered with vegetation, with a good floral source nearby.[10]
Parasitism

Bees of the genus Nomada most often parasitize bees of the genus Andrena, but have also been observed parasitizing other ground-nesting bees in the families Andrenidae, Melittidae, Halictidae, and Apidae.[11] As is the case for other nomadines, this behavior violates “Emery’s rule” which states that social parasites tend to be either closely related to or sister species of their host.[12]

Nomada are guided by visual cues to locate host nest entrances.[5] In early spring, they can be spotted flying low to the ground, searching for nests to parasitize.[4] Once a nest is found, studies show that Nomada females assess their hosts nests based on three guiding principles: 1) vulnerability and quality of the host cell, 2) threat of a maternal host's presence, 3) competition with other Nomada bees. These three factors are assessed by the bees' olfactory senses to determine if the nest is provisioned with pollen, if a host bee is nearby or in the nest, if the nest has been parasitized before, and if there are other parasitic bees nearby.[5]

The role of male and female cuckoos bees in the parasitism process differs. Before mating, male Nomada will fly locally secreting a scent which mimics the host female. Male cuckoo bees will secrete this scent near host nests to help female Nomada find a nest to deposit eggs. Furthermore, when male and female bees mate, there is evidence that part of the male's secreted scent rubs off onto female bees, which will actually provide an advantage to her finding and entering a host nest.[13]

Nomada parasitizes their host cells by laying eggs in host nests while the female host bee is foraging for pollen, or nectar. The female Nomada oviposits in the host's cells before host oviposition and nest cell closure.[5] The female cuckoo bee will lay her eggs in the host's nest and leave. Some species are known to bury the egg at right angles into the cell wall, while some only partially insert the egg.[1] Additionally, Nomada may sometimes leave multiple eggs into one host cell, a frequent trait of kleptoparasitic bees. Using their mandibles, the parasite larvae kill the host offspring and any conspecific larvae until only one is alive. This larva then consumes the host's provisions.[5] This type of parasitism is also known as brood parasitism, where the parasite's offspring develop on the nutrients gathered by the host for its own offspring.[11]
Mating behavior

Observations of Nomada mating are relatively rare, however there are reports of mating behavior as described below.

In five species of Nomada, the main component of male odor secretions was identical to the Dufour's gland secretions of the female host species. The female Nomada interact with the male's secretion during the matting process. There is evidence these secretions help the female Nomada bees recognize the host nests. Furthermore, reports of non-lethal and non-threatening interactions between Nomada and the host Andrena suggest this chemical odor may provide camouflage to protect her from the host females because physically, these genera do not resemblance each other.[9]

There is evidence of “antennal grabbing” during copulation, in which the male Nomada strokes the female antenna. This process transfers pheromones from the male to the female and may make the female unattractive to other males, as well as provide chemical cues to the location of a host nest. The pheromone transfer may also disguise the scent of the female Nomada, allowing her to enter the host nest undetected. The pheromones are transferred when the males hold the female bees down with their feet, while they use their antennae to grab the females’ antennae.[14]

Other reports of Nomada mating includes males “swarming” willow and gooseberry plants.[14]
Life cycle

Nomada bees are holometabolous and they follow the general process of: (1) egg (2) larvae (3) pupa (4) adult. In one egg cell, the female Nomada will deposit 1-2 eggs. These eggs hatch and the larvae use their mandibles to kill other eggs and larvae. These larvae feed on the stored provisions. The offspring pupate in the host cell and finally emerge as adults the following season along with the hosts.[7]
Species

Species of the genus Nomada are highly variable in behavior and habitat specialization. Occurring worldwide, their active periods vary based on their hosts.[15]

There is evidence that most species of Nomada are species-specific to their hosts, and that males mimic the specific scents of the species they parasitize. However, not much research has been done to understand the specialization of Nomada, and it is known that some species are more generalist than others.[16]

Nomada abnormis Ducke, 1912
Nomada abtana Tsuneki, 1973
Nomada abyssinica Meade-Waldo, 1913
Nomada accentifera Pérez, 1895
Nomada accepta Cresson, 1878
Nomada acutilabris Schwarz, 1990
Nomada adducta Cresson, 1878
Nomada adusta Smith, 1875
Nomada advena Smith, 1860
Nomada aethiopica Eardley & Schwarz, 1991
Nomada affabilis Cresson, 1878
Nomada africana Friese, 1911
Nomada agrestis Fabricius, 1787
Nomada albidemaculata Lozinski, 1922
Nomada alboguttata Herrich-Schäffer, 1839
Nomada alboscutellata Schwarz, 1990
Nomada aldrichi Cockerell, 1910
Nomada algira Mocsáry, 1883
Nomada alpha Cockerell, 1905
Nomada alpigena Schwarz, Gusenleitner & Mazzucco, 1999
Nomada amabilis Radoszkowski, 1876
Nomada amamiensis Hirashima, 1960
Nomada amoena Cresson, 1863
Nomada amorphae Swenk, 1913
Nomada amurensis Radoszkowski, 1876
Nomada angelarum Cockerell, 1903
Nomada angulata Swenk, 1913
Nomada annulata Smith, 1854
Nomada anpingensis Strand, 1913
Nomada antennata Meade-Waldo, 1913
Nomada aprilina Swenk, 1913
Nomada aquilarum Cockerell, 1903
Nomada arasiana Tsuneki, 1973
Nomada arenicola Swenk, 1913
Nomada argentata Herrich-Schäffer, 1839
Nomada argentea (Schwarz, 1966)
Nomada ariasi Dusmet y Alonso, 1913
Nomada arizonica Cockerell, 1911
Nomada armata Herrich-Schäffer, 1839
Nomada armatella Cockerell, 1903
Nomada arrogans Schmiedeknecht, 1882
Nomada articulata Smith, 1854
Nomada ashabadensis Schwarz, 1987
Nomada ashmeadi Cockerell, 1903
Nomada asozuana Tsuneki, 1975
Nomada asteris Swenk, 1913
Nomada astori Cockerell, 1903
Nomada aswensis Tsuneki, 1973
Nomada atrocincta Friese, 1920
Nomada agynia Cockerell, 1905
Nomada atrofrontata Cockerell, 1903
Nomada atrohirta Friese, 1923
Nomada atroscutellaris Strand, 1921
Nomada attenuata Cockerell, 1929
Nomada attrita Cockerell, 1919
Nomada augustiana Mitchell, 1962
Nomada aurantifascia Eardley & Schwarz, 1991
Nomada australensis Perkins, 1912
Nomada australis Mitchell, 1962
Nomada austriaca Schmiedeknecht, 1882
Nomada autumnalis Mitchell, 1962
Nomada avalonica Cockerell, 1938
Nomada azaleae Mitchell, 1962
Nomada aztecorum Cockerell, 1903
Nomada babai Tsuneki, 1986
Nomada babiyi Schwarz & Standfuss, 2007
Nomada baccata Smith, 1844
Nomada bakeri Cockerell, 1915
Nomada baldiniana Benzi, 1892
Nomada banahaonis Cockerell, 1915
Nomada banksi Cockerell, 1907
Nomada barbilabris Pérez, 1895
Nomada barcelonensis Cockerell, 1917
Nomada basalis Herrich-Schäffer, 1839
Nomada beaumonti Schwarz, 1967
Nomada belfragei Cresson, 1878
Nomada bella Cresson, 1863
Nomada besseyi Swenk, 1913
Nomada bethunei Cockerell, 1903
Nomada beulahensis Cockerell, 1903
Nomada bicellula Schwarz, 1990
Nomada bicellularis Ducke, 1908
Nomada bicrista Swenk, 1913
Nomada bifasciata Olivier, 1811
Nomada bifurcata Cockerell, 1903
Nomada biguttata Friese, 1909
Nomada biroi Friese, 1909
Nomada bisetosa Swenk, 1913
Nomada bisignata Say, 1824
Nomada bispinosa Mocsáry, 1883
Nomada blepharipes Schmiedeknecht, 1882
Nomada bluethgeni Stoeckhert, 1943
Nomada bohartorum Moalif, 1988
Nomada bolivari Dusmet y Alonso, 1913
Nomada bonaerensis Holmberg, 1886
Nomada bouceki Kocourek, 1985
Nomada braunsiana Schmiedeknecht, 1882
Nomada brevis Saunders, 1908
Nomada breviuscula Schwarz, 1990
Nomada brewsterae Broemeling, 1989
Nomada californiae Cockerell, 1903
Nomada calimorpha Schmiedeknecht, 1882
Nomada calloptera Cockerell, 1918
Nomada calloxantha Cockerell, 1921
Nomada capillata Mitchell, 1962
Nomada carinicauda Cockerell, 1921
Nomada carnifex Mocsáry, 1883
Nomada carthaginensis Dusmet y Alonso, 1932
Nomada caspia Morawitz, 1895
Nomada castellana Dusmet y Alonso, 1913
Nomada ceanothi Cockerell, 1907
Nomada centenarii Dusmet y Alonso, 1932
Nomada ceylonica Cameron, 1897
Nomada cherkesiana Mavromoustakis, 1955
Nomada chrysopyga Morawitz, 1871
Nomada citrina Cresson, 1878
Nomada civilis Cresson, 1878
Nomada clarescens Cockerell, 1921
Nomada clarkii Cockerell, 1903
Nomada cleopatra Schwarz, 1989
Nomada collarae Schwarz, 1964
Nomada collinsiana Cockerell, 1905
Nomada coloradella Cockerell, 1905
Nomada coloradensis Cockerell, 1903
Nomada comparata Cockerell, 1911
Nomada composita Mitchell, 1962
Nomada concessa Cockerell, 1919
Nomada concinnula Cockerell, 1921
Nomada concolor Schmiedeknecht, 1882
Nomada confinis Schmiedeknecht, 1882
Nomada confusa Schwarz & Gusenleitner, 2004
Nomada conjungens Herrich-Schäffer, 1839
Nomada connectens Pérez, 1884
Nomada consobrina Dufour, 1841
Nomada conspicua Smith, 1864
Nomada coquilletti Cockerell, 1903
Nomada corcyraea Schmiedeknecht, 1882
Nomada cordilabris Schwarz, 1990
Nomada cordillera Eardley & Schwarz, 1991
Nomada cordleyi Cockerell, 1903
Nomada coronata Pérez, 1896
Nomada corvallisensis Cockerell, 1903
Nomada costalis Brèthes, 1909
Nomada costaricensis Schrottky, 1920
Nomada coxalis Morawitz, 1877
Nomada crawfordi Cockerell, 1905
Nomada cressonii Robertson, 1893
Nomada cristata Pérez, 1896
Nomada crotchii Cresson, 1878
Nomada crucis Cockerell, 1903
Nomada crudelis Cresson, 1878
Nomada cruenta Schmiedeknecht, 1882
Nomada cubensis Cresson, 1865
Nomada cuneata (Robertson, 1903)
Nomada curvispinosa Schwarz, 1981
Nomada custeriana Cockerell, 1911
Nomada cymbalariae Cockerell, 1906
Nomada cypriaca Schwarz, 1999
Nomada cypricola Mavromoustakis, 1955
Nomada dahli Friese, 1912
Nomada davidsoni Cockerell, 1903
Nomada debilis Timberlake, 1954
Nomada decempunctata Cockerell, 1903
Nomada decepta Mitchell, 1962
Nomada dentariae (Robertson, 1903)
Nomada denticulata Robertson, 1902
Nomada depressa Cresson, 1863
Nomada detrita Mitchell, 1962
Nomada diacantha Schwarz, 1981
Nomada dilucida Cresson, 1878
Nomada dira Schmiedeknecht, 1882
Nomada discedens Pérez, 1884
Nomada discicollis Morawitz, 1875
Nomada discrepans Schmiedeknecht, 1882
Nomada dissessa Cockerell, 1920
Nomada distinguenda Morawitz, 1874
Nomada dives Erichson, 1849
Nomada dolosa Mocsáry, 1883
Nomada dreisbachi Mitchell, 1962
Nomada dreisbachorum Moalif, 1988
Nomada dubia Eversmann, 1852
Nomada duplex Smith, 1854
Nomada durangoae Broemeling, 1989
Nomada dybovskij Radoszkowski, 1876
Nomada ecarinata Morawitz, 1888
Nomada ednae Cockerell, 1907
Nomada edwardsii Cresson, 1878
Nomada electa Cresson, 1863
Nomada electella Cockerell, 1903
Nomada elegantula Cockerell, 1903
Nomada elrodi Cockerell, 1903
Nomada emarginata Morawitz, 1877
Nomada eos Schmiedeknecht, 1882
Nomada erigeronis Robertson, 1897
Nomada errans Lepeletier, 1841
Nomada erythra Mitai, Hirashima & Tadauchi, 2007
Nomada erythraea Dalla Torre, 1896
Nomada erythrocephala Morawitz, 1870
Nomada erythrochroa Cockerell, 1903
Nomada erythrospila Cockerell, 1916
Nomada esana Tsuneki, 1973
Nomada exheredans Cockerell, 1919
Nomada eximia Eardley & Schwarz, 1991
Nomada fabriciana (Linné, 1767)
Nomada facilis Schwarz, 1967
Nomada fallax Pérez, 1913
Nomada fedtschenkoi Morawitz, 1875
Nomada felici Schwarz, 1977
Nomada femoralis Morawitz, 1869
Nomada fenestrata Lepeletier, 1841
Nomada ferghanica Morawitz, 1875
Nomada ferruginata (Linné, 1767)
Nomada fervens Smith, 1873
Nomada fervida Smith, 1854
Nomada festiva Cresson, 1863
Nomada flammigera Cockerell, 1906
Nomada flava Panzer, 1798
Nomada flavescens Friese, 1917
Nomada flaviceps Cresson, 1865
Nomada flavigenis Schwarz & Standfuss, 2007
Nomada flavilabris Morawitz, 1875
Nomada flavinervis Brullé, 1832
Nomada flavoguttata (Kirby, 1802)
Nomada flavopicta (Kirby, 1802)
Nomada flavozonata Nurse, 1902
Nomada florilega Lovell & Cockerell, 1905
Nomada fontis Cockerell, 1910
Nomada formula Viereck, 1902
Nomada fragariae Mitchell, 1962
Nomada fragilis Cresson, 1878
Nomada frankei Cockerell, 1929
Nomada frieseana Cockerell, 1904
Nomada fucata Panzer, 1798
Nomada fukuiana Tsuneki, 1973
Nomada fulvicornis Fabricius, 1793
Nomada furva Panzer, 1798
Nomada furvoides Stoeckhert, 1944
Nomada fusca Schwarz, 1986
Nomada fuscicincta Swenk, 1915
Nomada fuscicornis Nylander, 1848
Nomada fuscipennis Lepeletier, 1841
Nomada galloisi Yasumatsu & Hirashima, 1953
Nomada garciana Cockerell, 1907
Nomada gibbosa Viereck, 1905
Nomada gigas Friese, 1905
Nomada gillettei Cockerell, 1905
Nomada ginran Tsuneki, 1973
Nomada glaberrima Schmiedeknecht, 1882
Nomada glabriventris Schwarz, 1990
Nomada glaucopis Pérez, 1890
Nomada goodeniana (Kirby, 1802)
Nomada gracilicornis Morawitz, 1895
Nomada gracilis Cresson, 1863
Nomada graenicheri Cockerell, 1905
Nomada grandior Friese, 1921
Nomada grandis Cresson, 1875
Nomada gransassoi Schwarz, 1986
Nomada grayi Cockerell, 1903
Nomada gribodoi Schmiedeknecht, 1882
Nomada gruenwaldti Schwarz, 1979
Nomada guichardi Schwarz, 1981
Nomada guichardiana Eardley & Schwarz, 1991
Nomada gusenleitneri Schwarz, 1981
Nomada gutierreziae Cockerell, 1896
Nomada guttulata Schenck, 1861
Nomada gyangensis Cockerell, 1911
Nomada hackoda Tsuneki, 1973
Nomada hakonensis Cockerell, 1911
Nomada hakusana Tsuneki, 1973
Nomada hammarstroemi Morawitz, 1888
Nomada hararensis Meade-Waldo, 1913
Nomada harimensis Cockerell, 1914
Nomada heiligbrodtii Cresson, 1878
Nomada hemphilli Cockerell, 1903
Nomada henningeri Evans, 1972
Nomada hera Schwarz, 1965
Nomada hesperia Cockerell, 1903
Nomada heterosticta Cockerell, 1921
Nomada hirticeps Pérez, 1895
Nomada hirtipes Pérez, 1884
Nomada hirtiventris Schwarz, 1990
Nomada hispanica Dusmet y Alonso, 1913
Nomada hondurasica Cockerell, 1949
Nomada hoodiana Cockerell, 1903
Nomada hummeli Alfken, 1936
Nomada hungarica Dalla Torre & Friese, 1894
Nomada hurdi Evans, 1972
Nomada hydrophylli Swenk, 1915
Nomada ibanezi Dusmet y Alonso, 1915
Nomada icazti Tsuneki, 1976
Nomada idahoensis Swenk, 1913
Nomada illinoensis Robertson, 1900
Nomada illustris Schmiedeknecht, 1882
Nomada imbricata Smith, 1854
Nomada immaculata Morawitz, 1874
Nomada imperialis Schmiedeknecht, 1882
Nomada incisa Schmiedeknecht, 1882
Nomada indusata Mitchell, 1962
Nomada inepta Mitchell, 1962
Nomada inermis Pérez, 1895
Nomada infrequens Smith, 1879
Nomada insignipes Schmiedeknecht, 1882
Nomada insularis Smith, 1864
Nomada integerrima Dalla Torre, 1896
Nomada integra Brullé, 1832
Nomada interruptella Fowler, 1902
Nomada issikii Yasumatsu, 1939
Nomada italica Dalla Torre & Friese, 1894
Nomada itamera Cockerell, 1910
Nomada jamaicensis Cockerell, 1912
Nomada jammuensis Schwarz, 1990
Nomada japonica Smith, 1873
Nomada jaramense Dusmet y Alonso, 1913
Nomada javaensis Schwarz & Gusenleitner, 2004
Nomada javanica Friese, 1909
Nomada jennei Cockerell, 1906
Nomada jocularis Cresson, 1879
Nomada kaguya Hirashima, 1953
Nomada keroanensis Pérez, 1895
Nomada kervilleana Pérez, 1913
Nomada kincaidiana Cockerell, 1903
Nomada kingstonensis Mitchell, 1962
Nomada kinosukei Tsuneki, 1973
Nomada klamathensis Fox, 1926
Nomada kocoureki Schwarz, 1987
Nomada kohli Schmiedeknecht, 1882
Nomada koikensis Tsuneki, 1973
Nomada komarowi Radoszkowski, 1893
Nomada koreana Cockerell, 1926
Nomada kornosica Mavromoustakis, 1958
Nomada krombeini Schwarz, 1966
Nomada krugii Cresson, 1878
Nomada kusdasi Schwarz, 1981
Nomada ladakhiensis Schwarz, 1990
Nomada lagrecai Noble, 1990
Nomada lamarensis Cockerell, 1905
Nomada lamellata Schwarz, 1977
Nomada laramiensis Swenk, 1913
Nomada lateritia Mocsáry, 1883
Nomada lathburiana (Kirby, 1802)
Nomada laticrus Mocsáry, 1883
Nomada latifrons Cockerell, 1903
Nomada lehighensis Cockerell, 1903
Nomada lepida Cresson, 1863
Nomada leucophthalma (Kirby, 1802)
Nomada leucotricha Strand, 1914
Nomada leucozona Rodeck, 1931
Nomada lewisi Cockerell, 1903
Nomada libata Cresson, 1878
Nomada limassolica Mavromoustakis, 1955
Nomada limata Cresson, 1878
Nomada linsenmaieri Schwarz, 1974
Nomada linsleyi Evans, 1972
Nomada lippiae Cockerell, 1903
Nomada litigiosa Gribodo, 1893
Nomada longicornis Friese, 1920
Nomada louisianae Cockerell, 1903
Nomada lucidula Schwarz, 1967
Nomada lucilla Nurse, 1902
Nomada lusca Smith, 1854
Nomada lutea Eversmann, 1852
Nomada luteola Olivier, 1811
Nomada luteoloides Robertson, 1895
Nomada luteopicta Cockerell, 1905
Nomada maculata Cresson, 1863
Nomada maculicornis Pérez, 1884
Nomada maculifrons Smith, 1869
Nomada maculipennis (Cameron, 1902)
Nomada maculiventer Swenk, 1915
Nomada makilingensis Cockerell, 1915
Nomada malayana Cameron, 1909
Nomada malonella Cockerell, 1910
Nomada malonina Cockerell, 1910
Nomada margelanica Schwarz, 1987
Nomada marginella Cockerell, 1903
Nomada marshamella (Kirby, 1802)
Nomada martinella Cockerell, 1903
Nomada mauritanica Lepeletier, 1841
Nomada mavromoustakisi Schwarz & Standfuss, 2007
Nomada mckenziei Timberlake & Cockerell, 1937
Nomada media Mitchell, 1962
Nomada mediana Swenk, 1913
Nomada melanoptera Cockerell, 1921
Nomada melanopyga Schmiedeknecht, 1882
Nomada melanosoma Cockerell, 1916
Nomada melanura Mocsáry, 1883
Nomada melathoracica Imhoff, 1834
Nomada melliventris Cresson, 1878
Nomada mendica Mitchell, 1962
Nomada merceti Alfken, 1909
Nomada mexicana Cresson, 1878
Nomada micheneri Schwarz & Gusenleitner, 2004
Nomada micronycha Pérez, 1902
Nomada mimus (Cockerell, 1916)
Nomada mindanaonis Cockerell, 1915
Nomada miniata Smith, 1854
Nomada minima Mitchell, 1962
Nomada minor Gmelin, 1790
Nomada mitchelli Cockerell, 1911
Nomada mocsaryi Schmiedeknecht, 1882
Nomada moeschleri Alfken, 1913
Nomada monozana Friese, 1920
Nomada montezumia Smith, 1879
Nomada montverna Tsuneki, 1973
Nomada moravitzii Radoszkowski, 1876
Nomada moricei Friese, 1899
Nomada morrisoni Cresson, 1878
Nomada multicolor Ducke, 1911
Nomada munakatai Tsuneki, 1973
Nomada munda Cresson, 1878
Nomada mutabilis Morawitz, 1870
Nomada mutans Cockerell, 1910
Nomada mutica Morawitz, 1872
Nomada nausicaa Schmiedeknecht, 1882
Nomada navasi Dusmet y Alonso, 1913
Nomada neomexicana Cockerell, 1903
Nomada nepalensis Schwarz, 1990
Nomada nesiotica Mavromoustakis, 1958
Nomada nigrescens Friese, 1921
Nomada nigrociliata Swenk, 1913
Nomada nigrocincta Smith, 1879
Nomada nigrofasciata Swenk, 1913
Nomada nigroflavida Gribodo, 1894
Nomada nigrovaria Pérez, 1896
Nomada nipponica Yasumatsu & Hirashima, 1951
Nomada nitida Schwarz, 1977
Nomada nitidiceps Cockerell, 1931
Nomada nobilis Herrich-Schäffer, 1839
Nomada noskiewiczi Schwarz, 1966
Nomada numida Lepeletier, 1841
Nomada nuptura Dusmet y Alonso, 1913
Nomada obliquella Fowler, 1902
Nomada obliterata Cresson, 1863
Nomada obscura Zetterstedt, 1838
Nomada obscurella Fowler, 1902
Nomada obscuriventris Schwarz, 1990
Nomada obtusata Swenk, 1915
Nomada obtusifrons Nylander, 1848
Nomada ochlerata Mitchell, 1962
Nomada ochrohirta Swenk, 1913
Nomada oculata Friese, 1921
Nomada odontocera Cockerell, 1916
Nomada odontophora Kohl, 1905
Nomada okamotonis Matsumura, 1912
Nomada okubira Tsuneki, 1973
Nomada opaca Alfken, 1913
Nomada opacella Timberlake, 1954
Nomada opposita Cresson, 1878
Nomada oralis Schwarz, 1981
Nomada orba Mitchell, 1962
Nomada orbitalis Pérez, 1913
Nomada orcusella Cockerell, 1910
Nomada oregonica Cockerell, 1903
Nomada ornithica Cockerell, 1906
Nomada orophila Cockerell, 1921
Nomada ortegai Dusmet y Alonso, 1915
Nomada osborni Cockerell, 1911
Nomada ovaliceps Schwarz, 1981
Nomada ovata (Robertson, 1903)
Nomada pacifica Tsuneki, 1973
Nomada packardiella Cockerell, 1906
Nomada palavanica Cockerell, 1919
Nomada pallidella Cockerell, 1905
Nomada pallidelutea Swenk, 1915
Nomada pallidenotata Schmiedeknecht, 1882
Nomada pallidipicta Swenk, 1913
Nomada pallispinosa Schwarz, 1967
Nomada palmeni Morawitz, 1888
Nomada pampicola Holmberg, 1886
Nomada panamensis Michener, 1954
Nomada panurgina Morawitz, 1869
Nomada panurginoides Saunders, 1908
Nomada panzeri Lepeletier, 1841
Nomada papuana Cockerell, 1933
Nomada parallela Swenk, 1913
Nomada parata Cresson, 1878
Nomada parkeri Evans, 1972
Nomada parva Robertson, 1900
Nomada pascoensis Cockerell, 1903
Nomada pastoralis Schmiedeknecht, 1882
Nomada pecosensis Cockerell, 1903
Nomada pectoralis Morawitz, 1877
Nomada pekingensis Tsuneki, 1986
Nomada penangensis Cockerell, 1920
Nomada perbella (Viereck, 1905)
Nomada perezi Dusmet y Alonso, 1913
Nomada perivincta Cockerell, 1905
Nomada perplexa Cresson, 1863
Nomada perplexans Cockerell, 1910
Nomada pervasor Cockerell, 1919
Nomada pesenkoi Schwarz, 1987
Nomada physura Cockerell, 1903
Nomada piccioliana Magretti, 1883
Nomada picticauda Cockerell, 1929
Nomada pictiscutum Alfken, 1927
Nomada pilipes (Cresson, 1865)
Nomada piliventris Morawitz, 1877
Nomada placida Cresson, 1863
Nomada placitensis Cockerell, 1903
Nomada platythorax Schwarz, 1981
Nomada pleurosticta Herrich-Schäffer, 1839
Nomada plumosa Gribodo, 1894
Nomada podagrica Gribodo, 1894
Nomada polemediana Mavromoustakis, 1957
Nomada polyacantha Pérez, 1895
Nomada polybioides Ducke, 1908
Nomada polyodonta Cockerell, 1920
Nomada portalensis Broemeling, 1989
Nomada posthuma Blüthgen, 1949
Nomada priesneri Schwarz, 1965
Nomada priscilla Nurse, 1902
Nomada propinqua Schmiedeknecht, 1882
Nomada proxima Cresson, 1863
Nomada pruinosa Pérez, 1895
Nomada pseudops Cockerell, 1905
Nomada psilocera Kohl, 1908
Nomada pulawskii Tsuneki, 1973
Nomada pulchra Arnold, 1888
Nomada pulsatillae Cockerell, 1906
Nomada pusilla Lepeletier, 1841
Nomada putnami Cresson, 1876
Nomada pygidialis Schwarz, 1981
Nomada pygmaea Cresson, 1863
Nomada pyrifera Cockerell, 1918
Nomada pyrrha Cockerell, 1916
Nomada quadrifasciata Schwarz, 1981
Nomada quinquefasciata Schwarz, 1981
Nomada radoszkowskii Lozinski, 1922
Nomada rhenana Morawitz, 1872
Nomada rhinula Strand, 1914
Nomada rhodalis Cockerell, 1903
Nomada rhodomelas Cockerell, 1903
Nomada rhodosoma Cockerell, 1903
Nomada rhodotricha Cockerell, 1903
Nomada rhodoxantha Cockerell, 1905
Nomada ridingsii Cresson, 1878
Nomada rivalis Cresson, 1878
Nomada roberjeotiana Panzer, 1799
Nomada robertsonella Cockerell, 1903
Nomada rodecki Mitchell, 1962
Nomada rohweri Cockerell, 1906
Nomada rostrata Herrich-Schäffer, 1839
Nomada rubi Swenk, 1915
Nomada rubicunda Olivier, 1811
Nomada rubiginosa Pérez, 1884
Nomada rubinii (Rayment, 1930)
Nomada rubra Smith, 1849
Nomada rubrella Cockerell, 1905
Nomada rubrica Provancher, 1896
Nomada rubricollis Schwarz, 1967
Nomada rubricosa Eversmann, 1852
Nomada rubricoxa Schwarz, 1977
Nomada rubriventris Schwarz, 1981
Nomada ruficollis Morawitz, 1875
Nomada ruficornis (Linnaeus, 1758)
Nomada rufipes Fabricius, 1793
Nomada rufoabdominalis Schwarz, 1963
Nomada rugicollis Friese, 1917
Nomada ruidosensis Cockerell, 1903
Nomada sabaensis Tsuneki, 1973
Nomada sabulosa Radoszkowski, 1876
Nomada salicicola Swenk, 1913
Nomada salicis Robertson, 1900
Nomada saltillo Broemeling, 1988
Nomada sanctaecrucis Cockerell, 1903
Nomada sandacana Cockerell, 1920
Nomada sanguinea Smith, 1854
Nomada sarta Morawitz, 1875
Nomada sayi Robertson, 1893
Nomada scheuchli Schwarz & Standfuss, 2007
Nomada schulthessi Schwarz, 1999
Nomada schwarzi Cockerell, 1903
Nomada scita Cresson, 1878
Nomada scitiformis Cockerell, 1903
Nomada secessa Cockerell, 1911
Nomada sedi Cockerell, 1919
Nomada semirugosa Cockerell, 1929
Nomada semiscita Cockerell, 1904
Nomada semisuavis Cockerell, 1910
Nomada sempiterna Morawitz, 1894
Nomada seneciophila Mitchell, 1962
Nomada serricornis Pérez, 1884
Nomada sexfasciata Panzer, 1799
Nomada sheppardana (Kirby, 1802)
Nomada shirakii Yasumatsu & Hirashima, 1951
Nomada shoyozana Tsuneki, 1986
Nomada siccorum Cockerell, 1919
Nomada siciliensis Dalla Torre & Friese, 1894
Nomada sicula Schwarz, 1974
Nomada signata Jurine, 1807
Nomada silvicola Tsuneki, 1973
Nomada similis Morawitz, 1872
Nomada simplicicoxa Swenk, 1915
Nomada siouxensis Swenk, 1913
Nomada skinneri Cockerell, 1908
Nomada snowii Cresson, 1878
Nomada sobrina Mitchell, 1962
Nomada solitaria Smith, 1854
Nomada sophiarum Cockerell, 1903
Nomada sphaerogaster Cockerell, 1903
Nomada spinicoxa Schwarz, 1987
Nomada standfussi Schwarz, 2007
Nomada sternalis Pérez, 1902
Nomada stigma Fabricius, 1804
Nomada stoeckherti Pittioni, 1951
Nomada striata Fabricius, 1793
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 subpetiolata Smith, 1879
Nomada subrubi Swenk, 1915
Nomada subrutila Lovell & Cockerell, 1905
Nomada subscopifera Ducke, 1908
Nomada subsimilis Cockerell, 1903
Nomada subvicinalis Cockerell, 1903
Nomada subvirescens Morawitz, 1875
Nomada succincta Panzer, 1798
Nomada suda Cresson, 1879
Nomada suffossa Cockerell, 1922
Nomada sulphurata Smith, 1854
Nomada superba Cresson, 1863
Nomada sutepensis Cockerell, 1929
Nomada swenki Schwarz, 1966
Nomada sybarita Schmiedeknecht, 1882
Nomada symphyti Stoeckhert, 1930
Nomada taicho Tsuneki, 1973
Nomada taraxacella Cockerell, 1903
Nomada temmasana Tsuneki, 1986
Nomada tenella Mocsáry, 1883
Nomada tenuicornis Cockerell, 1949
Nomada tepoztlan Moalif, 1988
Nomada tesaceobalteata Cameron, 1910
Nomada texana Cresson, 1872
Nomada thersites Schmiedeknecht, 1882
Nomada tibialis Cresson, 1865
Nomada tiendang Tsuneki, 1986
Nomada timberlakei Broemeling, 1989
Nomada tintinnabulum Cockerell, 1903
Nomada towada Tsuneki, 1973
Nomada townesi Mitchell, 1962
Nomada transitoria Schmiedeknecht, 1882
Nomada trapeziformis Schmiedeknecht, 1882
Nomada trapidoi Michener, 1954
Nomada tricurta Swenk, 1915
Nomada tridentirostris Dours, 1873
Nomada trispinosa Schmiedeknecht, 1882
Nomada truttarum Cockerell, 1909
Nomada tsunekiana Schwarz, 1999
Nomada turneri Meade-Waldo, 1913
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 unispinosa Schwarz, 1981
Nomada utahensis Moalif, 1988
Nomada utensis Swenk, 1913
Nomada valida Smith, 1854
Nomada vallesina Cockerell, 1906
Nomada vegana Cockerell, 1903
Nomada velutina Swenk, 1913
Nomada verecunda Cresson, 1879
Nomada verna Schmiedeknecht, 1882
Nomada vernonensis Cockerell, 1916
Nomada vexator Cockerell, 1909
Nomada vicina Cresson, 1863
Nomada vicinalis Cresson, 1878
Nomada victrix Cockerell, 1911
Nomada vierecki Cockerell, 1903
Nomada villosa Thomson, 1870
Nomada vincta Say, 1837
Nomada vitticollis Cresson, 1878
Nomada vulpis Cockerell, 1921
Nomada waltoni Cockerell, 1910
Nomada washingtoni Cockerell, 1903
Nomada wheeleri Cockerell, 1903
Nomada whiteheadi Eardley & Schwarz, 1991
Nomada wickwari Meade-Waldo, 1913
Nomada wisconsinensis Graenicher, 1911
Nomada wootonella Cockerell, 1909
Nomada wyomingensis Swenk, 1913
Nomada xantha Mitai, Hirashima & Tadauchi, 2007
Nomada xantholepis Cockerell, 1911
Nomada xanthophila Cockerell, 1900
Nomada xanthopoda Schwarz, 1990
Nomada xanthopus Friese, 1921
Nomada xanthura Cockerell, 1908
Nomada yagensis Tsuneki, 1973
Nomada yakushimensis Mitai, Ikudome & Tadauchi, 2007
Nomada yanoi Tsuneki, 1973
Nomada yarrowi Schwarz, 1981
Nomada yasha Tsuneki, 1986
Nomada zamoranica Cockerell, 1949
Nomada zebrata Cresson, 1878
Nomada ziziae Swenk, 1915
Nomada zonalis Schwarz, 1990
Nomada zonata Panzer, 1798.
Nomada maculata, female
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