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Andrena mandibularis Robertson, 1892


Scientific Name: Andrena mandibularis Robertson, 1892

Common Name: Toothed Miner Bee


Andrena mandibularis Robertson, 1892: 272 [♂].

     Lectotype ♂ [designated by LaBerge (1980: 455)]. USA, Illinois, Carlinville, 17 April 1888, by C. Robertson, on Salix cordata [INHS].

Andrena mandibus Vander Kloet, 1976: 506. Lapsus of Andrena mandibularis Robertson, 1892.


Taxonomic notes: The ♀ was keyed by Robertson (1902: 191); described by LaBerge (1980: 454). As Robertson (1892) only described this species from 2♂, the lectoallotype desginated by LaBerge (1980: 455) is not valid because no females were indicated in the syntype series.

DNA Barcode Index Number (BIN): BOLD:AAD0012 [?]

Distribution in Canada: Criddle et al. 1924 [ON]; Knerer and Atwood 1964 [ON]; LaBerge 1980 [ON, NS]; Sheffield et al. 2003, 2009 [NS]; Richards et al. 2011 [ON]; Normandin et al. 2017 [QC]; Hicks and Sheffield 2021 [LB]. BOLD [SK, MB, ON, QC, NS].


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(4): 395-525.

Robertson C (1892) Descriptions of new North American bees. American Naturalist 26: 267-274.

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

Vander Kloet SP (1976) Nomenclature, taxonomy and biosystematics of Vaccinium section Cyanococcus (the blueberries) in North America. I. Natural barriers to gene exchange between Vaccinium angustifolium Ait. and Vaccinium corymbosum L. Rhodora 78: 503-515.

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

Crop Preference: Malus pumila, Pyrus communis, Prunus persica, Prunus serotina
Non Crop Preference: Astragalus sp., Salix sp., Rhamnus sp., Vaccinium angustifolium, Viburnum sp., Prunus sp., Rubus sp., Physocarpus sp., Crataegus sp., Claytonia virginica, Hepatica acutiloba, Amelanchier canadensis, Cercis canadensis, Prunus virginiana, Salix humilis, Prunus americana, Salix interior, Salix nigra, Geranium sp., Rhus aromatica Aiton var. aromatica, Ribes sp., Taraxacum officinale, Acer saccharinum, Acer negundo, Crataegus mollis, Cardamine sp., Forsythia, Populus deltoides, Salix amygdaloides, Salix cordata, Salix discolor, Uvularia grandiflora

Distribution: Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec, Saskatchewan
Ecozone: Atlantic Maritime, Mixwood Plains, Prairie

female; lateral view
female; lateral view