Andrena critica Mitchell, 1960
  Apoidea   Andrenidae   Andrena
Subgenus: Uncertain

IDnature guides
Reprinted with permission from: Mitchell, T.B. 1960. Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.

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FEMALE. Length 11 mm.; length of face somewhat greater than distance between eyes; clypeus much broader than its median length, evenly convex, smooth and shining, punctures exceedingly minute and sparse, hardly visible; facial foveae broad, nearly filling area between eyes and ocelli above and reaching slightly below level of antennae, with fuscous tomentum; vertex quite broad, space between lateral ocelli and its hind margin about twice their diameter; cheeks considerably broader than eyes, rounded, surface somewhat shining, without visible punctures; malar space evident but very short; basal segment of flagellum about equal to 2nd and 3rd combined, median segments slightly longer than broad; process of labrum large and conspicuous, broadly and evenly rounded; pubescence of head largely fuscous, with a few pale hairs between antennae and foveae, that on thorax blackish below, pale ochraceous on dorsum, propodeum and upper portion of pleura; scutum and scutellum dull, microscopically tessellate, with scattered, sparse and shallow punctures; pleura dull; finely tessellate above, becoming somewhat more shining and more distinctly and deeply punctate below; dorsal area of propodeum finely tessellate; propodeal corbicula well developed, with scattered sparse hairs on lateral faces of propodeum, but without a distinct anterior fringe; trochanteral floccus well developed, of uniform length; legs black, with largely black pubescence, including the hind tibial scopa, apical tarsal segments somewhat reddened; spurs pale testaceous, those on mid and hind tibiae relatively straight; wings lightly infuscated, stigma testaceous, the veins pale testaceous, second submarginal cell slightly shorter than 3rd; tegulae piceous; abdominal terga smooth, with vague metallic tints, impressed apical margins on 2nd and 3rd segments occupying about one-third of median length, punctures very minute and quite sparse, hardly visible, pubescence short and obscure, apparently fuscous or black, the apical fimbria blackish; fasciae absent.

TYPE - Holotype: Female, Plateau Mt., Catskill Mts., N. Y., 2200 ft., May 24, 1947 [Univ. Mich.].

Scientific source:

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