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Agapostemon fasciatus Crawford, 1901


Scientific Name: Agapostemon fasciatus Crawford, 1901

Common Name: Fasciate Striped Sweat Bee


Agapostemon fasciatus Crawford, 1901: 163 [♀, ♂].

     Lectotype ♀ [designated by J.C. Crawford, in Sandhouse 1936: 79]. USA, Nebraska, Lincoln, September, by M. Cary, on Aster longifolius [USNM, Lectotype no. 5398].

Halictus (Agapostemon) plurifasciatus Vachal, 1903. Unnecessary replacement name for Agapostemon fasciatus Crawford, 1901.


Taxonomic notes: This species has been considered a synonym of Agapostemon melliventris Cresson, 1874 since Roberts (1972, 1973), though was also previously treated as a subspecies (Sandhouse 1936); the name was resurrected by Sheffield (2023: 6). Sandhouse (1936) indicated that the specimen at the USNM was selected as a lectotype by J.C. Crawford.

DNA Barcode Index Number (BIN)BOLD:ACU3900

Biology: No specific reference to the biology of this species exists, though several exist on the pollen preferences and foraging behaviour for A. melliventris (e.g., Linsley 1960; Cazier and Linsley 1974; Porter 1983). Since these studies were mostly conducted in the southern USA, outside the main range of A. fasciatus, these may not be appicable specifically, but may apply in general. 

Distribution in Canada: Sheffield et al. 2014 [SK, as A. melliventris Cresson]; Sheffield 2023 [AB, SK].

Extent of Occurrence (EOO) in Canada ( N/A [known from two sites in Canada]:

Approximate Global Extent of Occurrence (EOO) (

Index of Area of Occupancy (IAO) in Canada ( 8 km2

Datasets Used: (25 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.

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.

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

Vachal J (1903) Étude sur les Halictus d’Amerique (Hym.). Miscellanea Entomologica 11: 89-104.

Porter CC (1983) Ecological notes on lower Rio Grande Valley Augochloropsis and Agapostemon (Hymenoptera: Halictidae). Florida Entomologist 66(3): 344-353.

Linsley EG (1960) Observations of some matinal bees at flowers of Cucurbita, Ipomoea and Datura in desert areas of New Mexico and southeastern Arizona. Journal of the New York Entomological Society 68(1): 13-20.

Cazier MA, Linsley EG (1974) Foraging behaviour of some bees and wasps at Kallstroemia grandiflora flowers in southern Arizona and New Mexico. American Museum Novitates 2546: 1-20.

Sheffield C (2023) Agapostemon fasciatus Crawford (Hymenoptera, Halictidae), a valid North American bee species ranging into southern Canada. Biodiversity Data Journal 11: e103982.

Sociality: Solitary
Nesting: Ground
Pollen Specialization: Polylectic
Wintering Stage: Adult

Crop Preference: Not Available
Non Crop Preference: Aster sp., Grindelia sp., Eriophyllum sp.

Distribution: Alberta, Saskatchewan
Ecozone: Prairie

female; lateral
female; lateral
female; face
female; face
female syntype; lateral
female syntype; lateral
female syntype; abdomen dorsal view
female syntype; abdomen dorsal view

Distribution Map