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Andrena krigiana Robertson, 1901


Scientific Name: Andrena krigiana Robertson, 1901

Common Name: Krigia Miner Bee


Andrena krigiana Robertson, 1901: 229 [♀, ♂].

     Lectotype ♀, designated by LaBerge (1967: 160). USA, Illinois, Carlinville, 15 June 1901, by C.A. Robertson [INHS].

Andrena (Ptilandrena) parakrigiana Mitchell, 1960: 157 [♂]. Synonymy by LaBerge (1967: 158).

     Holotype ♂. USA, Georgia, Butler, 29 March 1938, by P.W. Fattig [NCSU].


Taxonomic notes: Mitchell (1960: 157) felt that his Andrena parakrigiana Mitchell, 1960 was possibly a variant of A. krigiana Robertson, 1901; the synonymy was confirmed by LaBerge (1967: 158).

Though usually the forewing has 3 submarginal cells, some specimens have one forewing with the second submarginal cross vein missing, resulting in two submarginal cells (Robertson 1902; J.C. Crawford, in Pierce 1909; and see Scarpulla 2018).

Biology: This species if oligolectic on Krigia (LaBerge 1967; Neff and Simpson 1997; Fowler 2016).

Distribution in Canada: Rubens 2019 [ON].


LaBerge WE (1967) A revision of the bees of the genus Andrena of the Western Hemisphere. Part I. Callandrena. (Hymenoptera: Andrenidae). Bulletin of the University Nebraska State Museum 7: 1-318.

Mitchell TB (1960) Bees of the Eastern United States. Volume 1. North Carolina Agricultural Experiment Station Technical Bulletin 141: 1-538.

Neff JL, Simpson BB (1997) Nesting and foraging behavior of Andrena (Callandrena) rudbeckiae Robertson (Hymenoptera: Apoidea: Andrenidae) in Texas. Journal of the Kansas Entomological Society 70(2): 100-113.

Robertson C (1901) Some new or little-known bees. The Canadian Entomologist 33: 229-231.

Robertson C (1902b) Synopsis of Andreninae. Transactions of the American Entomological Society 28(2): 187-194.

Rubens C (2019) Changes in composition and structure of a wild bee community and plant-pollinator interactions in South-Central Ontario over a forty-nine year period. MSc Thesis, University of Guelph, Guelph, Ontario, xi + 135 pp.

Fowler J (2016) Specialist bees of the Northeast: host plants and habitat conservation.  Northeastern Naturalist 23(2): 305-320.

Sociality: Solitary
Nesting: Ground
Pollen Specialization: Narrow Oligolecty
Wintering Stage: Mature Larva

Crop Preference: Not Available
Non Crop Preference: Krigia biflora

Distribution: Ontario
Ecozone: Mixwood Plains

Distribution Map