Andrena autumnalis Viereck & Cockerell, 1914
  Apoidea   Andrenidae   Andrena
Subgenus: Uncertain


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Overview
Reprinted from: Viereck, H.L. and T.D.A. Cockerell. 1914. New North American bees of the genus Andrena. Proceedings of the U.S. National Museum 48: 1-58. The copyright on this work has expired.

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Lincoln, Nebraska. September.

FEMALE. Length, 11 mm. Black, the legs very dark reddish. Pubescence grayish white. Facial quadrangle broader than long; process of labrum emarginate; clypeus shining, sparsely and weakly punctured in middle, more closely on sides. Facial foveae as seen from above pale seal brown, almost half as broad as distance from eye to antennae, ending broadly below, a trifle below level of antennae and not diverging from eye. Front striate. Flagellum dark reddish. Third antennal joint about as long as fourth and fifth together. Mesothorax dull, with very sparse weak punctures. Scutellum broad and flat, smooth and shiny. Area of metathorax small, without evident sculpture. Tegulae rather pale brown. Wings reddish hyaline, stigma and nervures amber color. Basal nervure meeting transverse median. Second submarginal cell receives first recurrent nervure at about beginning of last third. Hair on outer side of tibiae and tarsi sooty. Middle femora very sharply keeled beneath, with a long white fringe. Hair on inner side of hind tarsi very dark brown; spurs cream color. Abdomen impunctate, the hind margins of the segments whitish, with very thin bands, with long white hair. Hair at apex sooty.

Very close to A. runcinatae Cockerell, but distinct. A. runcinatae is smaller and has a good deal of black hair on thorax above.

TYPE. Entomological collection of the University of Nebraska.

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