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Andrena sola Viereck, 1917


Scientific Name: Andrena sola Viereck, 1917

Common Name: Lonely Mining Bee


Andrena (Andrena) sola Viereck, 1917: 577 [♀].

     Holotype ♀. USA, California, southern California, by H.K. Morrison [ANSP no. 4047].

Andrena carissima Cockerell, 1924: 58 [♀]. Synonymy by P.H. Timberlake, in Linsley (1951: 1081).

     Holotype ♀. USA, Arizona, Clifton, 26 March 1918, by J.I. Carlson [CAS no. 1707].

Andrena microdonta Cockerell, 1924: 61 [♂]. Synonymy by P.H. Timberlake, in Linsley (1951: 1081).

     Holotype ♂. USA, Arizona, Clifton, 26 March 1918, by J.I. Carlson [CAS no. 1710].

Andrena ensenadensis Cockerell, 1941: 345 [♀]. Synonymy by P.H. Timberlake, in Linsley (1951: 1081).

     Syntypes ♀. MEXICO, Baja California, Ensenada, March 1941, on Rosa minutifolia [CAS no. 15329].


Taxonomic notes: For Andrena carissima and A. microdonta, numbers 1582 and 1585, respectively, were indicated by Cockerell, differing from those reported in the CAS database. Though Bouseman and LaBerge (1979: 295) indicate the holotype for A. ensenadensis, Cockerell's original work indicates “females at Rosa minutiflora, Coreopsis maritima, etc.,” suggesting the possible existence of syntypes.

DNA Barcode Index Number (BIN): BOLD:AAF1276

Distribution in Canada: Linsley 1951 [BC]; Sheffield and Heron 2019 [BC].



Cockerell TDA (1924) Bees of the genus Andrena in the collection of the California Academy of Sciences. The Pan-Pacific Entomologist 1(2): 57-65.

Cockerell TDA (1941) Observations on plants and insects in north-western Baja California, Mexico, with descriptions of new bees. Transactions of the San Diego Society of Natural History 9(31): 339-352.

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

Linsley EG (1951) Subfamily Andreninae. In: Hymenoptera of America north of Mexico Synoptic Catalog. Edited by CFW Muesebeck, KV Krombein, and HK Townes. USDA Agricultural Monograph No. 2, Washington, D.C. pp 1052–1086.

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

Crop Preference: Not Available
Non Crop Preference: Not Available

Distribution: British Columbia
Ecozone: Western Interior Basin

Distribution Map