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Andrena tridens Robertson, 1902


Scientific Name: Andrena tridens Robertson, 1902

Common Name: Andrena tridens


Andrena tridens Robertson, 1902: 192 [♂‚]

     Lectotype ♂‚ [designated by W.E. LaBerge, in Webb 1980: 107]. USA, Illinois, Carlinville, 21 March 1894, by C. Robertson, on Hepatica acutiloba [INHS, Robertson no. 16244]

Andrena enigmatica Viereck and Cockerell 1914: 33 [♂‚] [synonymy by LaBerge 1980: 456]

     Holotype ♂‚. USA, Nebraska, Lincoln, 25 April 1901, by M.A. Carriker, Jr., on willow [USNM no. 18145]

Andrena (Gymnandrena) bisignata Mitchell 1960: 122 [♀, ♂‚] [synonymy by LaBerge 1980: 456]

     Holotype ♀. USA, Massachussettes, Forest Hills, 4 May 1912, by H.L. Viereck [USNM no. XX]



LaBerge WE (1980) A revision of the bees of the genus Andrena of the Western Hemisphere. Part X. Subgenus Andrena. Transactions of the American Entomological Society 106: 395‑525.

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

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

Viereck HL, Cockerell TD (1914) New North American bees of the genus Andrena. Proceedings of the United States National Museum 48: 1‑58.

Webb 1980

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

Crop Preference: Malus pumila, Prunus serotina
Non Crop Preference: Salix sp., Prunus sp., Rosa sp., Amelanchier sp., Hepatica acutiloba, Cercis canadensis, Salix humilis, Salix sericea, Prunus americana, Prunus virginiana var. demissa, Rhus aromatica Aiton var. aromatica, Ribes sp., Cardamine sp., Uvularia grandiflora, Acer rubrum, Aesculus glabra, Cardamine concatenata, Erythronium sp., Erythronium americanum, Ilex verticillata, Ribes missouriense, Viburnum acerifolium

Distribution: Ontario
Ecozone: Atlantic Maritime, Mixwood Plains