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Panurginus beardsleyi (Cockerell, 1904)


Scientific Name: Panurginus beardsleyi (Cockerell, 1904)

Common Name: Beardsley\\\'s Miner Bee


Greeleyella beardsleyi Cockerell, 1904: 236 [♀].

     Holotype ♀. USA, Colorado, Greeley, Colorado Normal School, 3 June 1900, by Beardsley [CAS no. 15410].

Panurginus malvastri Swenk and Cockerell, 1907: 179 [♂, ♀]. Synonymy by Stevens (1919: 208).

     Syntypes ♂, ♀. USA, Nebraska, Sioux County, Warbonnet Canon, 13 June 1901, by M. Cary, on Malvastrum [=Sphaeralcea] [UNSM].


Taxonomic notes: Panurginus malvastri Swenk and Cockerell, 1907 was considered a valid species by Crawford (1915: 579), but later placed into synonymy under P. beardsleyi (Cockerell, 1904) by Stevens (1919: 208), which was followed in subsequent works (Crawford 1926; Michener 1951: 1097; Hurd 1979). Some females from Utah and Saskatchewan have the clypeus with a slight maculation, though DNA barcodes from these individuals do not vary from those without the maculation.

DNA Barcode Index Number (BIN): BOLD:AAF1811

Biology: Cockerell (1922) indcated that this species was an oligolege of Sphaeralcea coccinea.

Distribution in Canada: Criddle 1926 [AB]; Sheffield et al. 2014 [AB]; RSKM [SK].


Cockerell TDA (1904) New records of bees. The Entomologist 37: 231-236.

Sheffield CS, Frier SD, Dumesh D (2014) The bees (Hymenoptera: Apoidea, Apiformes) of the Prairies Ecozone, with comparisons to other grasslands of Canada. In: Giberson DJ, Cárcamo HA (Eds) Arthropods of Canadian Grasslands (Volume 4): Biodiversity and Systematics Part 2. 4. Biological Survey of Canada, Ottawa, 479 pp. [ISBN 978-0-9689321-7-9].

Stevens OA (1919) The panurgine bees of North Dakota and a new Epeolus (Hym.). The Canadian Entomologist 51(8): 205-210.

Swenk MH, Cockerell TDA (1907) The bees of Nebraska.–II. Entomological News 18: 178-187.

Criddle N (1926) The entomological record, 1925. Annual Report of the Entomological Society of Ontario 56: 94-107.

Cockerell TDA (1922) Bees of the genus Panurginus obtained by the American Museum Rocky Mountain Expeditions. American Museum Novitates 36: 1-10.

Crawford JC (1926) North American bees of the genus Panurginus. Proceedings of the Entomological Society of Washington 28: 207-214.

Crawford JC (1915) Descriptions of new Hymenoptera, No. 9. Proceedings of the United States National Museum 48(2087): 577-586.

Sociality: Solitary
Nesting: Ground
Pollen Specialization: Narrow Oligolecty
Wintering Stage: Mature Larva

Crop Preference: Not Available
Non Crop Preference: Monarda sp., Sphaeralcea coccinea

Distribution: Alberta, Saskatchewan
Ecozone: Prairie

female; lateral view
female; lateral view

Distribution Map