Bees of Canada Logo

Agapostemon femoratus Crawford, 1901


Scientific Name: Agapostemon femoratus Crawford, 1901

Common Name: Wide-legged Striped Sweat Bee


Agapostemon femoratus Crawford, 1901: 162 [♂‚ ♀].

     Lectotype ♂ [tentative]. USA, Idaho, Moscow [USNM no. 5400].


Taxonomic notes: Crawford's (1901) syntype series contained 14♂s from the USA from Washington, Wawawai, by C.V. Piper; California, Palo Alto, 27 July 1892, by Leland Stanford Jr. Univ.; Idaho, Lewiston and Moscow, by S.N. Dunning; Idaho, Moscow, Harrison, and Lewiston, by J.M. Aldrich, and 2♀s from East Washington, by R.W. Doane (from C.V. Piper); Idaho, Moscow, by J.M. Aldrich. None of these was clearly designated as the type specimen. Cockerell (1927: 157) designated a type "locality" of California, Palo Alto (27 July 1892) from Crawford's syntype series, and presumambly this designation represented only one ♂ specimen. However, Crawford (1901) did not indicate how many males were part of the materials collected on that date in Palo Alto, so one cannot assume there is no other males matching this date. In a later revision, Sandhouse (1936: 79) considered A. femoratus Crawford a synonym of A. cockerelli Crawford (as did Michener 1951: 1124), though this has not been supported in subsequent revisions (Roberts 1972: 482), Sandhouse (1936: 79) also desginated a ♂ lectotype from Idaho, Moscow [USNM no. 5400, Barcode 00536743]. However, as with Cockerell's (1927) designation, there is not information provided to distinguish this male from others in the syntype series from Moscow - there were at least two specimens collected by S.N. Dunning, and J.M. Aldrich. Though Robertson (1972) claimed to have examined the ♂ type in the USNM, he did not provide any information on the specimen, or other syntypes examined. Thus, at present it may be best to consider syntypes until a unique lectotype can be designated.

DNA Barcode Index Number (BIN)BOLD:AAB0974

This BIN shared with Agapostemon obliquus (Provancher, 1888) and Agapostemon sericeus (Forster, 1771). 


Distribution in Canada: Criddle 1926 [BC]; Sandhouse 1936 [BC, AB]; Roberts 1972 [BC, AB], 1973 [BC]; Hurd 1979 [BC, AB]; Moure and Hurd 1987 [BC, AB]; Sheffield et al. 2014 [AB, SK]; Sheffield and Heron 2018 [BC].

Extent of Occurrence (EOO) in Canada (

Approximate Global Extent of Occurrence (EOO) (

Index of Area of Occupancy (IAO) in Canada (


Datasets (28 April 2023) GBIF Occurrence Download 


Crawford JC (1901) North American bees of the genus Agapostemon Guerin. Publications of the Nebraska Academy of Sciences 7: 156-165.

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.

Michener CD (1951) Superfamily Apoidea. 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, 1420 pp.

Roberts RB (1973a) Bees of Northwestern America: Agapostemon (Hymenoptera: Halictidae). Technical Bulletin of the Agricultural Experiment Station, Oregon State University 125: 1-23.

Sandhouse GA (1936) The bees of the genus Agapostemon (Hymenoptera: Apoidea) occurring in the United States. Journal of the Washington Academy of Sciences 26: 70-83.

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].

Cockerell TDA (1927) Bees of the genera Agapostemon and Augochlora in the collection of the California Academy of Sciences. The Pan-Pacific Entomologist 3(4): 153-162.

Roberts RB (1972) Revision of the bee genus Agapostemon. University of Kansas Science Bulletin 49: 437-590.

Sheffield CS, Heron JM (2019) The bees of British Columbia (Hymenoptera: Apoidea, Apiformes). Journal of the Entomological Society of British Columbia 115: 44-85.

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

Sociality: Solitary
Nesting: Ground
Pollen Specialization: Polylectic
Wintering Stage: Mated Female

Crop Preference: Not Available
Non Crop Preference: Achillea millefolium, Agropyron cristatum, Shepherdia argentea

Distribution: Alberta, British Columbia, Saskatchewan
Ecozone: Montane Cordillera, Pacific Maritime, Prairie, Western Interior Basin

female; lateral view
female; lateral view

Distribution Map