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Anthidium clypeodentatum Swenk, 1914


Scientific Name: Anthidium clypeodentatum Swenk, 1914

Common Name: Saw-lipped Carder Bee


Anthidium clypeodentatum Swenk, 1914: 12 [♀].

     Holotype . USA, Nebraska, Sioux County [UNSM].

Anthidium incurvatum Swenk, 1914: 22 [♂]. Synonymy by Grigarick and Stange (1968: 15).

     Holotype . USA, Colorado, Costilla County, Ute Creek, on sage flats, 19 July 1907, by H.S. Smith [UNSM].

Anthidium emarginatum var. bilineatum Schwarz, 1927: 4 [♂]. Synonymy by Grigarick and Stange (1968: 15).

     Holotype . USA, Colorado, Cascade [AMNH].

Anthidium clypeodentatum var. lutzi Schwarz, 1928: 380 [♀, ♂]. Synonymy by Grigarick and Stange (1968: 15).

     Holotype . USA, California, “Mt. Wilson”, by Dr. Davidson [unknown].


Taxonomic NotesAnthidium emarginatum var. bilineatum Schwarz had previously been synonymized under A. psorleae Robertson by P.H. Timberlake (in Michener 1951: 1142).

Gonzalez and Griswold (2013: 278) indicated that the whereabouts of the type material for Anthidium clypeodentatum var. lutzi Schwarz is unknown, though Grigarick and Stange (1968: 15) indicated UCR (University of California, Riverside).

DNA Barcode Index Number (BIN): BOLD:AAC0494


Distribution in Canada: Schwarz 1928 [BC, AB, MB]; Michener 1951 [BC, AB, MB, as A. clypeodentatumclypeodentatum Swenk]; Gribarick and Strange 1968 [BC to MB]; Patenaude 2007 [MB]; Sheffield et al. 2014 [MB]; Gonzalez and Griswold 2013 [YT, BC, AB, SK]; Gibbs et al. 2023 [MB].

Extent of Occurrence (EOO) in Canada ( 1,908,345 km2

Approximate Global Extent of Occurrence (EOO) ( 6,513,582 km2

Index of Area of Occupancy (IAO) in Canada ( 240 km2


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].

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.

Patenaude A (2007) Diversity, composition, and seasonality of wild bees (Hymenoptera: Apoidea) in a northern mixed-grass prairie preserve. Master’s thesis. University of Manitoba, Winnipeg, Manitoba, Canada.

Michener CD (1951) Family Megachilidae. 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. 1136-1186.

Grigarick AA, Stange LA (1968) The pollen-collecting bees of the Anthidiini of California (Hymenoptera: Megachilidae). Bulletin of the California Insect Survey 9: 1-113.

Schwarz HF (1928) Bees of the subfamily Anthidiinae, including some new species and varieties, and some new locality records. Journal of the New York Entomological Society 36: 369-418.

Schwarz HF (1928) Anthidiinae collected mostly in Canada (Hymenop). The Canadian Entomologist 60(9): 212-217.

Schwarz HF (1927) North American bees of the genus Anthidium. American Museum Novitates 252: 1-22.

Gonzalez VH, Griswold TL (2013) Wool carder bees of the genus Anthidium in the Western Hemisphere (Hymenoptera: Megachilidae): diversity, host plant associations, phylogeny, and biogeography. Zoological Journal of the Linnean Society 168: 221-425.

Sociality: Solitary
Pollen Specialization: Broad Oligolecty
Wintering Stage: Mature Larva

Crop Preference: Not Available
Non Crop Preference: Astragalus sp., Trifolium pratense, Lupinus sp., Lotus corniculatus

Distribution: Alberta, British Columbia, Manitoba, Northwest Territories, Saskatchewan, Yukon
Ecozone: Montane Cordillera, Prairie, Taiga Plains, Western Interior Basin

Female Anthidium clypeodentatum
Female Anthidium clypeodentatum

Distribution Map