Calliopsis andreniformis Smith 1853
Calliopsis anthidius Fowler 1899
Calliopsis anthidius lutea (Rozen 1958)
Calliopsis australior Cockerell 1897
Calliopsis callops (Cockerell & Porter 1899)
Calliopsis chlorops Cockerell 1899
Calliopsis coloradensis Cresson 1878
Calliopsis coloratipes Cockerell 1898
Calliopsis edwardsii Cresson 1878
Calliopsis helianthi (Swenk & Cockerell 1907)
Calliopsis hesperia equina (Cockerell 1925)
Calliopsis hirsutulum Spinola 1851
Calliopsis hondurasica Cockerell 1949
Calliopsis mellipes (Timberlake 1952)
Calliopsis micheneri (Rozen 1958)
Calliopsis nebraskensis Crawford 1902
Calliopsis obscurellus Cresson 1879
Calliopsis peninsularis Cockerell
Calliopsis puellae (Cockerell 1933)
Calliopsis pugionis Cockerell 1925
Calliopsis rhodophilus Cockerell 1897
Calliopsis rozeni Shinn 1965
Calliopsis scitulus Cresson 1878
Calliopsis scutellaris Fowler 1899
Calliopsis sp.
Calliopsis subalpinus Cockerell 1894
Calliopsis subalpinus andradensis (Cockerell 1937)
Calliopsis teucrii Cockerell 1899
Calliopsis timberlakei Shinn 1967
Calliopsis trifasciatum Spinola 1851
Calliopsis verbenae Cockerell & Porter 1899
Calliopsis zebratus Cresson 1878
Calliopsis zonalis Cresson 1879
Camptopoeum kuznetzovi Ckll.
Liphanthus sabulosus Reed 1894
Macrotera arcuata dinognatha Cockerell 1922
Macrotera texana Cresson 1878
Macrotera texana texana Cresson 1878
Megandrena enceliae (Cockerell 1927)
Megandrena mentzeliae Zavortink 1972
Meliturga clavicornis Latr.
Meliturgula wilmattae Ckll.
Panurginus albopilosus Luc.
Panurginus atriceps (Cresson 1898)
Panurginus beardsleyi (Cockerell 1904)
Panurginus cressoniellus Cockerell 1898
Panurginus melanocephalus (Cockerell 1926)
Perdita affinis Cresson 1878
Perdita albipennis Cresson 1868
Perdita albipennis albipennis Cresson 1868
Perdita albipennis heliophila Cockerell 1916
Perdita ashmeadi ashmeadi Cockerell 1899
Perdita asteris Cockerell 1896
Perdita austini Cockerell 1895
Perdita bigeloviae Cockerell 1896
Perdita bivittata Timberlake
Perdita bridwelli Timberlake 1960
Perdita bruneri Cockerell 1897
Perdita callicerata Cockerell 1896
Perdita calloleuca calloleuca Cockerell 1922
Perdita cambarella cambarella Cockerell 1906
Perdita chamaesarachae Cockerell 1896
Perdita cladothricis Cockerell 1896
Perdita claypolei Cockerell 1901
Perdita cleomellae Cockerell 1925
Perdita crotonis Cockerell 1896
Perdita crotonis crotonis Cockerell 1896
Perdita ericameriae Timberlake 1958
Perdita eriogoni Cockerell 1925
Perdita excisa Timberlake 1928
Perdita exclamans Cockerell 1895
Perdita fallax Cockerell 1896
Perdita fedorensis Cockerell 1916
Perdita flavipes Timberlake 1964
Perdita florissantella Cockerell 1906
Perdita grandiceps Cockerell 1896
Perdita halictoides Smith 1853
Perdita heliotropii Cockerell 1900
Perdita heliotropii heliotropii Cockerell 1900
Perdita heterothecae Cockerell 1900
Perdita heterothecae heterothecae Cockerell 1900
Perdita ignota Cockerell 1896
Perdita ignota crawfordi Cockerell 1901
Perdita ignota ignota Cockerell 1896
Perdita interrupta Cresson 1878
Perdita interserta Cockerell 1922
Perdita isocomatis Timberlake
Perdita jonesi Cockerell 1906
Perdita kiowa Griswold 1988
Perdita koebelei Timberlake 1964
Perdita lacticincta Swenk & Cockerell 1907
Perdita layiae Cockerell 1938
Perdita layiae basalicola Ckll.
Perdita layiae layiae Cockerell 1938
Perdita lepachidis Cockerell 1896
Perdita lepachidis lepachidis Cockerell 1896
Perdita luteola Cockerell 1894
Perdita maculata Say
Perdita maculata constricta Say
Perdita malacothricis Timberlake 1956
Perdita marcialis Cockerell 1896
Perdita mentzeliae Cockerell 1896
Perdita mentzeliarum Cockerell 1897
Perdita micheneri Timberlake 1956
Perdita micheneri micheneri Timberlake 1956
Perdita minima Cockerell 1923
Perdita nebrascensis Swenk & Cockerell 1907
Perdita nigroclypeata Timberlake 1964
Perdita nitidella Cockerell 1895
Perdita numerata Cockerell 1895
Perdita opuntiae Cockerell 1922
Perdita ornatipes
Perdita pectidis Cockerell 1896
Perdita perpallida Cockerell 1901
Perdita perpallida citrinella Graenicher 1910
Perdita perpallida perpallida Cockerell 1901
Perdita perpulchra perpulchra Cockerell 1896
Perdita phymatae Cockerell 1895
Perdita punctosignata Cockerell 1895
Perdita punctosignata sulphurea Timberlake 1964
Perdita punctulata Timberlake 1958
Perdita pyrifera Cockerell 1925
Perdita rhodura Cockerell 1897
Perdita rhois Cockerell 1901
Perdita rhois rhois Cockerell 1901
Perdita salicis Cockerell 1896
Perdita salicis coloradana Timberlake 1929
Perdita salicis salicis Cockerell 1896
Perdita salicis tristis Cockerell 1964
Perdita semicaerulea Cockerell 1896
Perdita semicrocea Cockerell 1895
Perdita sexmaculata Cockerell 1895
Perdita sexmaculata sexmaculata Cockerell 1895
Perdita sidae Cockerell 1897
Perdita snowii Cockerell 1896
Perdita sonorensis Cockerell 1899
Perdita sp.
Perdita sphaeralceae Cockerell 1896
Perdita sphaeralceae alticola Cockerell 1896
Perdita sphaeralceae sphaeralceae Cockerell 1896
Perdita spinosa Timberlake
Perdita stottleri Cockerell 1896
Perdita stottleri flavida Swenk & Cockerell 1907
Perdita swenki Crawford 1915
Perdita timberlakei Cockerell 1925
Perdita tortifoliae Cockerell 1906
Perdita townsendi Cockerell 1896
Perdita tridentata Stevens 1919
Perdita trisignata trisignata Cockerell 1896
Perdita verbesinae Cockerell 1896
Perdita verbesinae maculata Cockerell 1896
Perdita wilmattae Cockerell 1906
Perdita wilmattae miricornis Cockerell 1922
Perdita wilmattae wilmattae Cockerell 1906
Perdita wootonae Cockerell 1898
Perdita xanthismae Cockerell 1905
Perdita yosemitensis Timberlake 1962
Perdita zebrata Cresson 1878
Perdita zebrata flavens Timberlake 1958
Perdita zebrata zebrata Cresson 1878
Protandrena atricornis (Cresson 1878)
Protandrena bakeri (Cockerell 1896)
Protandrena bancrofti Dunning 1897
Protandrena boylei (Cockerell 1896)
Protandrena californicus (Cresson 1878)
Protandrena cockerelli Dunning 1897
Protandrena didirupa (Cockerell 1908)
Protandrena flavotinctus (Cockerell 1898)
Protandrena illioniensis (Cockerell 1878)
Protandrena innuptus (Cockerell 1896)
Protandrena leucopterus (Cockerell 1923)
Protandrena nebrascensis (Crawford 1903)
Protandrena neomexicanus (Cockerell 1898)
Protandrena parvus (Roberston 1892)
Protandrena pauper (Cresson 1878)
Protandrena perlaevis (Cockerell 1896)
Protandrena piercei (Crawford 1903)
Protandrena piercei albertensis (Cockerell 1937)
Protandrena porterae (Cockerell 1900)
Protandrena renimaculatus (Cockerell 1896)
Protandrena sp.
Protandrena stigmalis (Swenk & Cockerell 1907)
Psaenythia facialis Sust.
Pseudopanurgus aethiops (Cresson 1872)
Pseudopanurgus fraterculus (Cockerell 1896)
Spinoliella maculata Spinola 1851
Aphelinus mali (Haldeman 1851)
Coccophagus modestus Silv.
Coccophagus vehraceus How.
Encarsia peltatus (Cockerell 1911)
Lounsburyia trifasciatus (Compere 1925)
Allodape cupulifera Vach.
Allodape simillima Sm.
Allodapula minutissim Cockerell
Allodapula progoniae
Alloscirtetica tristrigata Spinola 1851
Amegilla acraensis (Fabricius 1793)
Amegilla albigena (Lepeletier 1841)
Amegilla bombiformis (Smith 1854)
Amegilla capensis (Friese 1905)
Amegilla garrula (Rossi 1790)
Amegilla korotonensis (Cockerell 1911)
Amegilla niveata (Friese 1905)
Amegilla ogilviei (Cockerell 1932)
Amegilla quadrifasciata (de Villers 1789)
Ancyloscelis apiformis (Fabricius 1793)
Ancyloscelis sejunctus Cockerell 1933
Ancyloscelis sp.
Anthophora abrupta Say 1837
Anthophora affabilis Cresson 1878
Anthophora bomboides Kirby 1837
Anthophora californica Cresson 1869
Anthophora capistrata Cresson 1878
Anthophora centriformis Cresson 1879
Anthophora cockerelli Timberlake 1937
Anthophora columbariae Timberlake & Cockerell 1937
Anthophora crotchii Cresson 1878
Anthophora edwardsii Cresson 1878
Anthophora fedorica Cockerell 1906
Anthophora flexipes Cresson 1879
Anthophora forbesi Cockerell 1907
Anthophora fulvicauda Timberlake 1937
Anthophora hololeuca Cockerell 1923
Anthophora lesquerellae (Cockerell 1897)
Anthophora linsleyi Timberlake 1941
Anthophora maculifrons Cresson 1879
Anthophora marginata Smith 1854
Anthophora montana Cresson 1869
Anthophora mortuaria Timberlake 1937
Anthophora neglecta Timberlake & Cockerell 1936
Anthophora nigritula Cockerell 1924
Anthophora occidentalis Cresson 1869
Anthophora pacifica Cresson 1878
Anthophora paranensis Holmberg 1903
Anthophora peritomae Cockerell 1905
Anthophora petrophila Cockerell 1905
Anthophora plagiata (Illiger 1806)
Anthophora plumipes (Pallas 1772)
Anthophora porterae Cockerell 1900
Anthophora praecox Friese 1909
Anthophora pubescens (Fabricius 1781)
Anthophora rhodothorax Michener 1936
Anthophora salazariae Timberlake 1937
Anthophora sp.
Anthophora squammulosa Dours 1869
Anthophora terminalis Cresson 1869
Anthophora urbana Cresson 1878
Anthophora ursina Cresson 1869
Anthophora vallorum (Cockerell 1896)
Anthophora vestita Smith 1854
Anthophora walshii Cresson 1869
Anthophorula albata Timberlake 1947
Anthophorula albicans (Provancher 1896)
Anthophorula compactula Cockerell 1897
Anthophorula nitens (Cockerell 1915)
Anthophorula pygmaea (Cresson 1872)
Anthophorula torticornis (Cockerell 1927)
Apis adamsoni Latr.
Apis adamsoni intermissa B. R.
Apis andreniformis Sm.
Apis binghami Cockerell
Apis binghami sladeni Cockerell
Apis dorsata Fabr.
Apis dorsata bicolor Kirby
Apis fasciata Latr.
Apis florea Fb.
Apis florea lobata Sm.
Apis florea nasicana Cockerell
Apis indica Fabr.
Apis indica japonica R.
Apis indica nigrocincta Sm.
Apis indica personi Latr.
Apis indica sinensis Sm.
Apis mellifera Linn.
Apis mellifera carnica Poll.
Apis mellifera ligustica Spiz.
Apis nigitarum Lep.
Apis unicolor Latr.
Apis unicolor alansoni Latr.
Bombus affinis Cresson 1863
Bombus affinis nova-angliae Bequaret 1920
Bombus appositus Cresson 1878
Bombus ashtoni (Cresson 1864)
Bombus auricomus (Robertson 1903)
Bombus balteatus Dahlbom 1832
Bombus balteatus kirbyellus Curtis 1835
Bombus barbutellus (Kirby 1802)
Bombus bifarius Cresson 1878
Bombus bifarius bifarius Cresson 1878
Bombus bifarius nearcticus Handlirsch 1888
Bombus bimaculatus Cresson 1863
Bombus bohemicus (Seidl 1837)
Bombus borealis Kirby 1837
Bombus campestris (Panzer 1801)
Bombus centralis Cresson 1864
Bombus cockerelli Franklin 1913
Bombus crotchii Cresson 1878
Bombus dahlbomi Guerin-Meneville 1835
Bombus distinctus
Bombus distinguendus Morawitz 1869
Bombus fernaldae (Franklin 1911)
Bombus fervidus (Fabricius 1798)
Bombus fervidus californicus (Smith 1854)
Bombus fervidus consanguineus Handlirsch 1888
Bombus fervidus dorsalis Cresson 1879
Bombus fervidus elatus (Fabricius 1804)
Bombus flavifrons Cresson 1863
Bombus flavifrons dimidiatus Ashmead 1902
Bombus flavifrons flavifrons Cresson 1863
Bombus flavifrons pleuralis Nylander 1848
Bombus fraternus (F. Smith 1854)
Bombus frigidus Smith 1854
Bombus griseocollis (DeGeer 1773)
Bombus huntii Greene 1860
Bombus hyperboreus Schonherr 1809
Bombus impatiens Cresson 1863
Bombus insularis (Smith 1861)
Bombus insularis bicolor (Franklin 1913)
Bombus jonellus (Kirby 1802)
Bombus lapponicus (Fabricius 1793)
Bombus lapponicus gelidus Cresson 1878
Bombus lapponicus sylvicola Kirby 1837
Bombus latreillitus Kirby
Bombus lucorum (Linnaeus 1761)
Bombus mateonis Cockerell
Bombus medius Cresson 1863
Bombus melanopygus Nylander 1848
Bombus melanopygus edwardsii Cresson 1878
Bombus mixtus Cresson 1878
Bombus mixtus praticolus Kirby 1837
Bombus morrisoni Cresson 1878
Bombus neoboreus Sladen 1919
Bombus neoboreus strenuus Cresson 1863
Bombus nevadensis Cresson 1874
Bombus nevadensis nevadensis Cresson 1874
Bombus pascuorum (Scopoli 1763)
Bombus pascuorum agrorum (Fabricius 1787)
Bombus pensylvanicus (DeGeer 1773)
Bombus pensylvanicus americanorum Fabricius 1804
Bombus pensylvanicus sonorus Say 1837
Bombus perplexus Cresson 1863
Bombus polaris Curtis 1835
Bombus polaris kinkaidii Cockerell 1898
Bombus polaris polaris Curtis 1835
Bombus quadricolor (Lepeletier 1832)
Bombus rufocinctus Cresson 1863
Bombus rupestris (Fabricius 1793)
Bombus sitkensis Nylander 1848
Bombus sp.
Bombus subterraneus (Linnaeus 1758)
Bombus suckleyi (Greene 1860)
Bombus ternarius Say 1837
Bombus terricola Kirby 1837
Bombus terricola occidentalis Greene 1858
Bombus vagans F. Smith 1854
Bombus variabilis (Cress.)
Bombus vau-flavus Cockerell
Bombus vestabilis (Geoff.)
Bombus virginicus Fabr.
Bombus vosnesenskii Radoszkowski 1862
Bombus weisi Friese 1903
Bombus weisi laboriosus (Smith 1861)
Brachynomada argentina Holmb.
Brachynomada mexicana Ashmead
Centris alleni Dov.
Centris buchholzi Herbst 1918
Centris caesalpiniae Cockerell 1897
Centris chilensis Spinola 1851
Centris cineraria Smith 1854
Centris clypeata Friese
Centris cockerelli Fox 1899
Centris dentata Smith
Centris garleppi Schrottky 1913
Centris hoffmanseggiae Cockerell 1897
Centris inermis Freise 1899
Centris inermis pallidifrons Cockerell
Centris lanipes subtarsata Cockerell
Centris nigerrima Spinola 1851
Centris pallida Fox 1899
Centris personata Smith 1874
Centris poecila Lepeletier 1841
Centris rhodophthalma Perez 1911
Centris sp.
Centris tiburonensis Cockerell 1923
Centris transversa Perez 1905
Ceratina acantha Provancher 1895
Ceratina accusator Cockerell
Ceratina arizonensis Cockerell 1898
Ceratina calcarata Robertson 1900
Ceratina callosa cephalica Cockerell
Ceratina chrysomella Gerst.
Ceratina cockerelli Smith 1907
Ceratina cucurbitina Rossi
Ceratina dallatorreana Friese 1896
Ceratina dentipes Friese
Ceratina dupla Say 1837
Ceratina ignara Cresson
Ceratina laevifrons Mor.
Ceratina micheneri Daly 1973
Ceratina nanula Cockerell 1897
Ceratina neomexicana Cockerell 1901
Ceratina pacifica Smith 1907
Ceratina sequoiae Michener 1936
Ceratina sexmaculata Sm.
Ceratina sp.
Ceratina strenua Smith 1879
Ceratina tejonensis Cresson 1864
Ceratina viridis Guer.
Ceratinidia philippinensis Ashm.
Ctenoplectra fuscipes Friese
Diadasia afflicta (Cresson 1878)
Diadasia angustifrons Timberlake
Diadasia australis (Cresson 1878)
Diadasia australis petrinus Cockerell
Diadasia bituberculata (Cresson 1878)
Diadasia chilensis Spinola 1851
Diadasia consociata Timberlake 1939
Diadasia diminuta (Cresson 1878)
Diadasia enavata (Cresson 1872)
Diadasia escomeli Cockerell
Diadasia hirsuta Fr.
Diadasia laticauda Cockerell 1905
Diadasia martialis Timberlake 1940
Diadasia nigrifrons (Cresson 1878)
Diadasia nitidifrons Cockerell 1905
Diadasia ochracea (Cockerell 1903)
Diadasia opuntiae Cockerell 1901
Diadasia opuntiae ubvescens
Diadasia piercei Cockerell 1911
Diadasia rinconis Cockerell 1897
Diadasia rinconis mimetica Cockerell 1924
Diadasia rinconis rinconis Cockerell 1897
Diadasia sp.
Diadasia sphaeralcearum Cockerell 1905
Diadasia sphaeralcearum affinis Timberlake 1939
Diadasia tuberculifrons Timberlake 1939
Diadasia vallicola Timberlake 1940
Doeringiella bardus (Cresson 1878)
Doeringiella californicus (Cresson 1878)
Doeringiella concavus (Cresson 1878)
Doeringiella cyclurus (Cockerell 1923)
Doeringiella donatus (Smith 1854)
Doeringiella fortis (Cockerell 1921)
Doeringiella gayi Spinola 1851
Doeringiella gigas Spinola 1851
Doeringiella helianthi (Robertson 1897)
Doeringiella helianthi grandior (Cockerell 1919)
Doeringiella lestes (Cockerell 1921)
Doeringiella lunatus (Say 1824)
Doeringiella nevadensis (Cresson 1878)
Doeringiella occidentalis (Cresson 1878)
Doeringiella pectoralis (Robertson 1897)
Doeringiella remigatus (Fabricius 1804)
Doeringiella rufithorax (Graenicher 1928)
Doeringiella rufotegularis (Ashmead)
Doeringiella sarothrinus (Cockerell 1929)
Doeringiella sp.
Doeringiella timberlakei (Cockerell 1929)
Doeringiella verbesinae (Cockerell 1897)
Epeoloides pilosula (Cresson 1878)
Epeolus amabilis Gerst.
Epeolus americanus (Cresson 1878)
Epeolus autumnalis Robertson 1902
Epeolus beulahensis Cockerell 1904
Epeolus bifasciatus Cresson 1864
Epeolus compactus Cresson 1878
Epeolus fulvopilosus Cresson
Epeolus interruptus Robertson 1900
Epeolus lanhami Mitchell 1962
Epeolus lectiformis Cockerell 1925
Epeolus lutzi Cockerell 1921
Epeolus mesillae (Cockerell 1895)
Epeolus minimus (Robertson 1902)
Epeolus pusillus Cresson 1864
Epeolus rufomaculatus Cockerell & Sandhouse 1924
Epeolus rufulus T. D. A. Cockerell 1941
Epeolus sp.
Epeolus variegata (L.)
Ericrocis lata (Cresson 1878)
Ericrocis sp.
Eucera bidentata Per.
Eucera collaris Dours
Eucera eucnemidea Dours
Eucera grisea F.
Eucera inflexitarsis Friese
Eucera isolata Lep.
Eucera notata sordida Alfken
Eucera obesa Dours
Eucera oraniensis Lep.
Eucera socialitis Sm.
Eucera sulamita Vach.
Eucera trivittata Brl.
Eucera velutina Sm.
Euglossa brullei Lepeletier
Euglossa charapansa Cockerell
Euglossa cordata (Linnaeus 1758)
Euglossa imperialis Cockerell
Euglossa piliventris Guerin 1845
Euglossa surinamensis Linnaeus
Eulaema dimidiata Fabricius
Eulaema fasciata Lepeletier 1841
Eulaema mussitans Fabricius
Eulaema nigrita Lepeletier 1841
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