Pollen Specialist Bees of the Eastern United States

Jarrod Fowler & Sam Droege

Pollen Specialist Bee Phenology: MAY

Table 1. Pollen specialist bee families (n = 6), genera (n = 22), and species (n = 89) with taxonomic authorities, distributions according to records from 20 states (AL, CT, DE, FL, GA, LA, MA, MD, ME, MS, NC, NH, NJ, NY, PA, RI, SC, VA, VT, and WV), regional conservation status (Common, Uncommon, or Rare), phenology according to records from 12 months (January, February, March, April, May, June, July, August, September, October, November, and December), and host plant families and genera. Bee families and member genera and species are presented in ascending alphabetical order. Families, subfamilies, tribes, and subtribes link to BugGuide profiles. Species link to Discover Life species profiles. Month headings link to month-specific lists. Host plants link to USDA PLANTS Database genera profiles: view 'Subordinate Taxa' tabs for regional host plant species. Arthropoda: Hexapoda: Insecta: Hymenoptera: Aculeata: Anthophila (Apoidea):
Family: Subfamily: Tribe: SubtribeGenus (Subgenus) speciesAuthorityRecorded statesStatusJFMAMJJASONDHost plant Family, Genera
Andrenidae: AndreninaeAndrena (Parandrena) andrenoides(Cresson, 1878)AL-FL-GA-MD-NC-NJ-NY-SC-VARare...XX.......Salix L.
Andrena (Scaphandrena) arabisRobertson, 1897CT-DE-MA-MD-NC-NJ-NY-PA-VA-WVUncommon..XXX.......Arabis L., Cardamine L.
Andrena (Thysandrena) bisalicisViereck, 1908AL-CT-DE-GA-LA-MA-MD-ME-MS-NC-NH-NJ-NY-PA-RI-SC-VA-VT-WVCommon-Uncommon..XXXXX.....Salix L.
Andrena (Conandrena) bradleyiViereck, 1907CT-DE-GA-MA-MD-ME-NC-NH-NJ-NY-PA-RI-SC-VACommon-Uncommon..XXXX......Ericaceae, e.g. Gaylussacia Kunth, Vaccinium L.
Andrena (Andrena) carolinaViereck, 1909AL-GA-CT-DE-MA-MD-ME-NC-NH-NJ-NY-PA-RI-VA-WVCommon-Uncommon...XXXX.....Ericaceae, e.g. Gaylussacia Kunth, Vaccinium L.
Andrena (Andrena) clarkella(Kirby, 1802)CT-MA-ME-NH-NY-RI-VT-WVCommon-Rare...XXXX.....Salix L.
Andrena (Andrena) cornelliViereck, 1907CT-DE-GA-MA-MD-NC-NJ-NY-PA-VAUncommon....XXX.....Rhododendron L.
Andrena (Ptilandrena) distansProvancher, 1888CT-GA-MA-MD-NC-NH-NJ-NY-PA-RI-VACommon-Uncommon...XXX......Geranium L.
Andrena (Ptilandrena) erigeniaeRobertson, 1891CT-DE-MA-MD-MS-NC-NH-NJ-NY-PA-SC-VA-WVCommon..XXX.......Claytonia L.
Andrena (Tylandrena) erythrogaster(Ashmead, 1890)CT-FL-GA-MA-MD-ME-NC-NH-NJ-NY-PA-RI-SC-VA-VT-WVCommon-Uncommon...XXXX.....Salix L.
Andrena (Leucandrena) erythroniiRobertson, 1891CT-FL-MA-MD-ME-NH-NJ-NY-PA-VA-WVUncommon...XXX......Erythronium L.
Andrena (Gonandrena) fragilisSmith, 1853CT-DE-GA-MA-MD-ME-NC-NH-NJ-NY-PA-RI-SC-VA-WVCommon....XXX.....Cornus (Swida) L.
Andrena (Andrena) frigidaSmith, 1853CT-GA-MA-MD-ME-NH-NJ-NY-PA-RI-VACommon-Uncommon..XXXX......Salix L.
Andrena (Callandrena s.l.) gardineriCockerell, 1906AL-FL-GA-MD-MS-NC-SC-VA-WVUncommon...XXX......Packera Á. Löve & D. Löve
Andrena (Euandrena) geraniiRobertson, 1891FL-MD-NH-NJ-NY-PA-VA-VT-WVUncommon...XXXX.....Hydrophyllum L.
Andrena (Micrandrena) illinoiensisRobertson, 1891MD-NY-VARare...XXX......Salix L.
Andrena (Gonandrena) integraSmith, 1853CT-MA-ME-MD-NC-NJ-NY-PA-VA-VTUncommon....XXXXX...Cornus (Swida) L.
Andrena (Scrapteropsis) kalmiaeAtwood, 1934CT-MA-ME-NHUncommon...XXXX.....Ericaceae, e.g. Kalmia L., Lyonia Nutt., Vaccinium L.
Andrena (Callandrena s.l.) krigianaRobertson, 1901AL-CT-FL-GA-LA-MA-MD-MS-NC-NH-NJ-NY-PA-SC-VA-WVUncommon..XXXX......Cichorieae, e.g. Hieracium L., Krigia Schreb.
Andrena (Micrandrena) lamellitergaRibble, 1968MD-PA-VARare...XX.......Phacelia Juss.
Andrena (Andrena) macoupinensisRobertson, 1900AL-FL-GA-MD-MS-NC-PA-SC-VA-WVUncommon..XXXX......Salix L.
Andrena (Trachandrena) mariaeRobertson, 1891GA-MD-NC-NH-NJ-RI-VA-WVUncommon..XXX.......Salix L.
Andrena (Micrandrena) melanochroaCockerell, 1898CT-GA-MA-MD-ME-NC-NH-NJ-NY-VA-WVUncommon..XXXXX.....Rosaceae, e.g. Fragaria L., Potentilla L., Rubus L.
Andrena (Parandrena) nidaMitchell, 1960AL-FL-GA-MD-MS-NC-NH-NJ-NY-RI-VA-WVUncommon..XXX.......Salix L.
Andrena (Micrandrena) nigraeRobertson, 1905AL-CT-DE-FL-GA-MA-MD-ME-MS-NC-NH-NJ-NY-PA-RI-SC-VA-VT-WVUncommon...XXX......Salix L.
Andrena (Gonandrena) perisimulataViereck, 1917CT-MA-ME-NH-NYUncommon....XXX.....Cornus (Swida) L.
Andrena (Euandrena) phaceliaeMitchell, 1960MD-NC-VA-WVRare...XX.......Phacelia Juss.
Andrena (Euandrena) polemoniiRobertson, 1891DE-WVRare....X.......Polemonium L.
Andrena (Trachandrena) rehniViereck, 1907CT, DE, GA, MA, MD, NC, NJ, NY, PA, VARare...XXX......Castanea Mill.
Andrena (Callandrena s.l.) rudbeckiaeRobertson, 1891DE-FL-LA-MD-MS-NC-NJ-NY-PARare....XXXX....Ratibida Raf., Rudbeckia L.
Andrena (Micrandrena) salictariaRobertson, 1905CT-GA-MA-MD-ME-NC-NH-NJ-NY-PA-RI-VA-VT-WVCommon-Rare..XXX.......Salix L.
Andrena (Trachandrena) sigmundiCockerell, 1902CT-GA-MA-ME-NC-NH-RI-VTCommon..XXXX......Salix L.
Andrena (Derandrena) uvulariaeMitchell, 1960DE-MA-MD-NC-NH-NJ-NY-PA-SC-VA-WVRare....X.......Uvularia L.
Andrena (Parandrena) wellesleyanaRobertson, 1897CT-MA-RIUncommon...XX.......Salix L.
Andrena (Micrandrena) ziziaeRobertson, 1891CT-GA-MA-MD-NC-NH-NJ-NY-PA-VA-VT-WVCommon-Uncommon...XXX......Zizia W.D.J. Koch
Andrena (Derandrena) ziziaeformisCockerell, 1908CT-DE-GA-MD-NC-NJ-NY-PA-VA-WVUncommon-Rare...XX.......Potentilla L., Waldsteinia Willd.
Andrenidae: Panurginae: Panurgini: PanurginiaPanurginus atramontensisCrawford, 1926GA-MD-MS-NC-NJ-VARare...XXX......Vaccinium (Polycodium) L.
Panurginus potentillae(Crawford, 1916)CT-GA-MA-MD-NC-NJ-NY-SC-VAUncommon-Rare..XXX.......Potentilla L.
Andrenidae: Panurginae: Panurgini: PerditinaPerdita (Alloperdita) floridensisTimberlake, 1928FL-NCRare...XX.......Ilex L.
Perdita (Hexaperdita) foveataTimberlake, 1956FLRare....XX......Asteraceae, e.g. Coreopsis L.
Perdita (Perdita) gerhardiViereck, 1904FL-MD-NC-NJ-VA-WVRare...XXXXX....Monarda L.
Perdita (Perdita) halictoidesSmith, 1853FL-GA-MA-MD-NC-NH-NJ-NY-VTUncommon-Rare...XXXXXX...Physalis L.
Perdita (Perdita) maculigeraCockerell, 1896NYRare...XXX......Salix L.
Perdita (Alloperdita) novaeangliaeViereck, 1907FL-CT-MA-NC-RI-SCUncommon....XXX.....Lyonia Nutt.
Perdita (Hexaperdita) nubilaTimberlake, 1958FLRare....X.......Asteraceae, e.g. Erigeron L.
Perdita (Alloperdita) obscurataCresson, 1878AL-FL-GA-MS-NCUncommon-Rare....X.......Diospyros L., Vaccinium L.
Andrenidae: Panurginae: ProtandreniniProtandrena abdominalis(Cresson, 1878)GA-MD-NC-NJ-PA-VA-WVRare....XXXXX...Monarda L.
Andrenidae: Panurginae: ProtandreniniPseudopanurgus albitarsis(Cresson, 1872)GA-NC-VARare....XXXXX...Asteraceae, e.g. Coreopsis L., Helianthus L., Ratibida Raf., Rudbeckia L.
Pseudopanurgus illinoiensis(Cresson, 1878)FL-LA-MD-NC-VARare....X.......Asteraceae, e.g. Erigeron L., Heterotheca Cass.
Pseudopanurgus passifloraeRobertson, 1897MS-NC-VARare...XXXXXX...Passiflora L.
Pseudopanurgus virginicus(Cockerell, 1907)AL-GA-MD-NC-VA-WVRare....XX......Ceanothus L., Houstonia L.
Apidae: Apinae: AnthophoriniHabropoda laboriosa(Fabricius, 1804)AL-CT-DE-FL-GA-MA-MD-ME-MS-NC-NH-NJ-NY-PA-SC-VACommon-UncommonXXXXX.....XXCercis L., Vaccinium L.
Apidae: Apinae: EmphoriniDiadasia (Coquillettapis) afflica(Cresson, 1878)LA-MSRare..XXXX......Malvaceae, e.g. Callirhoe Nutt.
Apidae: Apinae: EuceriniFlorilegus (Florilegus) condignus(Cresson, 1878)AL-DE-FL-GA-LA-MD-MS-NC-NJ-SC-VAUncommon-Rare...XXXXX....Pontederia L.
Apidae: Apinae: EuceriniMelissodes (Eumelissodes) agilisCresson, 1878AL-CT-DE-FL-GA-LA-MA-MD-ME-MS-NC-NH-NJ-NY-PA-RI-SC-VA-VT-WVCommon-Uncommon....XXXXXXX.Asteraceae, e.g. Grindelia Willd., Helianthus L., Ratibida Raf., Solidago L.
Melissodes (Apomelissodes) apicatusLovell and Cockerell, 1906CT-DE-FL-GA-MA-MD-ME-NH-NJ-NYUncommon-Rare..XXXXX.....Pontederia L.
Melissodes (Eumelissodes) denticulatusSmith, 1854AL-CT-DE-FL-GA-LA-MA-MD-MS-NC-NJ-NY-PA-VA-VT-WVCommon-Uncommon....XXXXXX..Asteraceae, e.g. Vernonia Schreb.
Melissodes (Eumelissodes) druriellus(Kirby, 1802)AL-CT-GA-MA-MD-ME-NC-NH-NJ-NY-PA-RI-SC-VA-VT-WVUncommon....XXXXXXX.Asteraceae, e.g. Euthamia Nutt. ex Cass., Helianthus L., Rudbeckia L., Solidago L., Symphyotrichum Nees, Vernonia Schreb.
Melissodes (Apomelissodes) fimbriatusCresson, 1878MS-NC-VARare...XXXX.....Oenothera L.
Melissodes (Apomelissodes) mitchelliLaBerge, 1956FL-GA-NC-SCRare...XX.......Opuntia Mill.
Apidae: Apinae: EuceriniSvastra (Epimelissodes) petulca(Cresson, 1878)AL-FL-GA-LA-MS-NC-NJ-SCUncommon-Rare...XXXXXX...Asteraceae, e.g. Coreopsis L., Helenium L., Helianthus L., Pyrrhopappus DC., Ratibida Raf., Rudbeckia L., Verbesina L.
Apidae: Apinae: EuceriniXenoglossa (Eoxenoglossa) kansensisCockerell, 1905FL-NC-SCRare....XXXX....Cucurbita L., Ipomoea L.
Xenoglossa (Eoxenoglossa) strenua(Cresson, 1878)AL-FL-GA-LA-MD-MS-NC-SC-VAUncommon....XXXX....Cucurbita L.
ColletidaeColletes aestivalisPatton, 1879DE-GA-MA-MD-MS-NC-NY-VARare....XXX.....Heuchera L.
Colletes americanusCresson, 1868CT-FL-GA-LA-MA-MD-ME-MS-NC-NH-NJ-NY-PA-VA-WVCommon-Uncommon....XXXXXX..Asteraceae, e.g. Euthamia Nutt. ex Cass., Grindelia Willd., Helianthus L., Pityopsis Nutt., Rudbeckia L., Solidago L., Symphyotrichum Nees
Colletes banksiSwenk, 1908CT-FL-GA-LA-NC-NJ-NY-SC-VARare...XXXX.....Ilex L.
Colletes brevicornisRobertson, 1897FL-GA-LA-MD-NC-NJ-SC-VA-WVUncommon..XXXX......Campanula L., Triodanis Raf. ex Greene
Colletes brimleyiMitchell, 1951FL-GA-NC-NJ-SCRare..XXXX......Ilex L.
Colletes latitarsisRobertson, 1891AL-CT-FL-GA-MA-MD-ME-MS-NC-NJ-NY-PA-SC-VA-WVUncommon..XXXXXXX...Physalis L.
Colletes productusRobertson, 1891AL-CT-FL-GA-LA-MA-MD-NC-NH-NJ-SC-VA-WVUncommon-Rare...XXXX.....Lyonia Nutt., Vaccinium L.
Colletes simulansCresson, 1868AL-CT-FL-GA-MA-MD-ME-MS-NC-NH-NJ-NY-PA-RI-SC-VA-VT-WVCommon....XXXXXXX.Euthamia Nutt. ex Cass., Solidago L., Symphyotrichum Nees
Colletes validusCresson, 1868CT-DE-GA-MA-ME-MD-NC-NH-NJ-NY-PA-RI-SC-VAUncommon..XXXXX.....Ericaceae, e.g. Vaccinium L.
Colletes willistoniRobertson, 1891FL-GA-MD-NC-NJ-NY-PA-VARare...XXXXXX...Physalis L.
Halictidae: Halictinae: HalictiniLasioglossum (Hemihalictus) lustrans(Cockerell, 1897)AL-DE-FL-GA-LA-MD-MS-NC-SC-VARare...XXXXXX...Pyrrhopappus DC.
Halictidae: RophitinaeDufourea novaeangliae(Robertson, 1897)CT-MA-MD-ME-NH-NJ-NY-PA-RI-VA-VTCommon-Rare....XXX.....Pontederia L.
Megachilidae: AnthidiiniDianthidium (Dianthidium) curvatum(Smith, 1854)AL-FL-GA-MS-NC-SCUncommon...XXXXXX...Asteraceae, e.g. Coreopsis L., Grindelia Willd., Helenium L., Helianthus L.
Megachilidae: LithurginaeLithurgopsis gibbosa(Smith, 1853)AL-FL-GA-NC-SCUncommon-Rare...XX.......Opuntia Mill.
Megachilidae: MegachiliniMegachile (Megachiloides) integraCresson, 1878AL-FL-GA-MD-NC-NJ-SCRare..XXXXXXX...Galactia P. Br., Strophostyles Elliot
Megachile (Megachiloides) oenotherae(Mitchell, 1924)GA-LA-NC-NJRare...XXX......Oenothera L.
Megachile (Melanosarus) xylocopoidesSmith, 1853AL-DE-FL-GA-LA-MD-MS-NC-NJ-SC-VAUncommon..XXXXXXXX..Asteraceae, e.g. Coreopsis L., Erigeron L., Helianthus L., Rudbeckia L., Solidago L., Vernonia Schreb.
Megachilidae: OsmiiniAshmeadiella (Ashmeadiella) bucconis(Say, 1837)GA-LA-NCRare....XXXX....Asteraceae, e.g. Coreopsis L., Erigeron L., Grindelia Willd., Heterotheca Cass., Helianthus L., Rudbeckia L., Solidago L., Verbesina L.
Megachilidae: OsmiiniHoplitis (Robertsonella) micheneriMitchell, 1962FL-GA-NC-SCUncommon-Rare...XX.......Amorpha L.
Hoplitis (Robertsonella) simplex(Cresson, 1864)DE-MD-NC-NJ-SC-VA-WVRare..XXX.......Nemophila Nutt., Phacelia Juss.
Megachilidae: OsmiiniOsmia (Helicosmia) chalybeaSmith, 1853AL-DE-FL-GA-LA-MD-MS-NC-NJ-NY-VA-WVRare..XXX.......Cirsium Mill.
Osmia (Melanosmia) distinctaCresson, 1864CT-DE-FL-MA-MD-ME-NC-NH-NJ-NY-PA-VA-VT-WVUncommon..XXXXX.....Penstemon Schmidel
Osmia (Helicosmia) texanaCresson, 1872MD-VA-WVRare..XXXXXX....Cirsium Mill.
Osmia (Melanosmia) virgaSandhouse, 1939CT-DE-MA-MD-ME-NC-NH-NJ-NY-PA-RI-VA-WVUncommon...XXX......Vaccinium L.
Melittidae: Melittinae: MacropidiniMacropis (Macropis) ciliataPatton, 1880CT-GA-MA-MD-ME-NC-NH-NJ-NY-PA-RI-VAUncommon-Rare....XXXX....Lysimachia L.
Melittidae: Melittinae: MelittiniMelitta (Cilissa) eickwortiSnelling & Stage, 1995GA-MD-NC-NJ-NY-WVRare....XX......Vaccinium (Polycodium) L.

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