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Lasioglossum testaceum (Robertson, 1897)


Scientific Name: Lasioglossum testaceum (Robertson, 1897)

Common Name: Pale-marked Sweat Bee


Halictus testaceus Robertson, 1897: 323 [♀].

     Lectotype ♀, designated by W.E. LaBerge, in Webb 1980: 116]. USA, Illinois, Carlinville, 11 April 1896, by C. Robertson [INHS, Robertson no. 17843].

Halictus (Chloralictus) scrophulariae Cockerell, 1906: 428. ♀. Synonymy by Gibbs (2011: 197).

     Holotype ♀. USA, Colorado, Florissant, 25 July [no year provided], by T.D.A. Cockerell, on Scrophularia [USNM no. 27772].

Halictus (Chloralictus) occultus Sandhouse, 1924: 27 [♂]. Preoccupied, not Halictus occultus Vachal, 1904.

     Holotype ♂. USA, Colorado, Florissant, 23 July [no year provided], by T.D.A. Cockerell, on Potentilla [USNM no. 26424].

Lasioglossum (Chloralictus) sandhouseae Michener, 1951: 1117. New name for H. occultus Sandhouse, 1924. Synonymy by Gibbs (2011: 197).


Distribution in Canada: Gibbs 2011 [BC, AB, SK]; Gardner and Gibbs 2020 [BC, AB, SK]. 


Cockerell TDA (1906) The bees of Florissant, Colorado. Bulletin of the American Museum of Natural History 22: 419-455.

Gibbs J (2011) Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini). Zootaxa 3073: 1-216.

Robertson C (1897) North American bees−descriptions and synonyms. Transactions of the Academy of Sciences of St. Louis 7: 315-356.

Sandhouse GA (1924) New North American species of bees belonging to the genus Halictus (Chloralictus). Proceedings of the United States National Museum 65: 1-43.

Gardner J, Gibbs J (2020) The ‘red-tailed’ Lasioglossum (Dialictus) (Hymenoptera: Halictidae) of the western Nearctic. European Journal of Taxonomy 725: 1-242.

Webb DW (1980) Primary insect types in the Illinois Natural History Survey Collection, exclusinve of the Collemboa and Thysanoptera. Illinois Natural History Survey Bulletin 32(2): 55-191.

Michener CD (1951) Family Halictidae. 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. 1104-1134.

Sociality: Presumed Eusocial
Nesting: Ground
Pollen Specialization: Polylectic
Wintering Stage: Mated Female

Crop Preference: Not Available
Non Crop Preference: Not Available

Distribution: Alberta, British Columbia, Saskatchewan
Ecozone: Prairie, Western Interior Basin