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Colletes willistoni Robertson, 1891


Scientific Name: Colletes willistoni Robertson, 1891

Common Name: Williston\'s Plasterer Bee


Colletes willistoni Robertson, 1891: 60 [♀].

     Holotype ♀. USA, Illinois, Carlinville, 11 June [no year provided], by C. Robertson, on Physalis [INHS].


Taxonomic notes: The ♂ was described by Robertson (1895: 116) and Swenk (1908: 16).

DNA Barcode Index Number (BIN): BOLD:ACC7841

Distribution in Canada: Criddle et al. 1924 [ON, QC]; Criddle 1925 [NS]; Michener 1951 [ON, QC, NS]; Stephen 1954 [MB, ON, NS]; Mitchell 1960 [NS]; Hurd 1979 [NS]; Sheffield et al. 2003 [NS]; 2014 [MB]; Gibbs et al. 2023 [MB].

According to Swenk (1908: 58), this is not a common species.

Body length: ♀ 8 - 11 mm ♂ 9 - 10 mm


Hurd PD (1979) Superfamily Apoidea. In: Krombein KV, Hurd Jr PD, Smith DR, Burks BD (Eds) Catalog of Hymenoptera in America North of Mexico. Smithsonian Institution Press, Washington, 2735 pp.

Mitchell TB (1960) Bees of the Eastern United States. Volume 1. North Carolina Agricultural Experiment Station Technical Bulletin 141: 1-538.

Robertson C (1891) Descriptions of new species of North American bees. Transactions of the American Entomological Society 18(1): 49-66.

Robertson C (1895) Notes on bees, with descriptions of new species. Transactions of the American Entomological Society 22(2): 115-128.

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].

Sheffield CS, Kevan PG, Smith RF, Rigby SM, Rogers RE (2003) Bee species of Nova Scotia, Canada, with new records and notes on bionomics and floral relations (Hymenoptera: Apoidea). Journal of the Kansas Entomological Society 76(2): 357-384.

Stephen WP (1954) A revision of the bee genus Colletes in America north of Mexico (Hymenoptera Colletidae). University of Kansas Science Bulletin 36: 149-527.

Swenk MH (1908) Specific characters in the bee genus Colletes. Papers from the University Studies Series, The University of Nebraska 8: 1-60.

Gibbs J, Hanuschuk E, Miller R, Dubois M, Martini M, Robinson S, Nakagawa P, Sheffield CS, Onuferko T (2023) A checklist of the bees (Hymenoptera: Apoidea) of Manitoba, Canada. The Canadian Entomologist 155: E3.

Criddle N, Curran CH, Viereck HL, Buckell ER (1924) The entomological record, 1923. Annual Report of the Entomological Society of Ontario 54: 87-102.

Michener CD (1951) Subfamily Colletinae. In: Muesebeck CF, Krombein KV, Townes HK (Eds) Hymenoptera of America north of Mexico Synoptic Catalog. 2. United States Department of Agriculture Agricultural Monograph, Washington. Pp. 1043-1049.

Criddle N (1925) The entomological record, 1924. Annual Report of the Entomological Society of Ontario 55: 89-106.

Sociality: Solitary
Nesting: Ground

Crop Preference: Not Available
Non Crop Preference: Melilotus sp., Monarda punctata, Physalis lanceolata, Physalis virginiana

Distribution: Manitoba, Nova Scotia, Ontario, Quebec
Ecozone: Atlantic Maritime, Boreal Shield, Mixwood Plains, Prairie

Distribution Map