Reprinted with permission from: Mitchell, T.B. 1962 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 152.
FEMALE—-Length 7-9 mm.; black, mandibles ferruginous except for the darkened base and apex, tegulae bright testaceous, tarsi brownish-testaceous, tibiae testaceous, with varying amounts of black infusion, spurs piceous to black and femora black; lateral ocelli separated from margin of vertex by about their own diameter; cheeks about half width of eyes, posterior margin obscurely carinate below, but more rounded above; median length of labrum about half the breadth, with a pair of rather obscure, subapical denticles; inner margin of mandible with a distinct subapical tooth; scutellum rather strongly out- curved, broadly impressed medially. axillae broadly united to sides of scutellum, but very short, tips only very slightly protuberant, not attaining mid transverse line of scutellum (fig. 110); wings with but two submarginal cells, second receiving both recurrent veins, subhyaline basally, becoming very lightly infuscated apically, veins brownish-testaceous; pubescence greyish-white, very thin and inconspicuous over most of head; margin of pronotum rather densely tomentose on each side, marginal fringe of tubercles extremely short and inconspicuous; scutum with a pair of longitudinal, narrow lines of pale tomentum anteriorly on each side of midline, and antero-lateral angles of plate rather densely pale tomentose, the scutello-mesothoracic suture with a thin pale fringe; metanotum nearly bare but adjacent margin of scutellum rather densely tomentose, especially on each side; pleura and venter of thorax nearly bare; basal abdominal tergum densely whitish tomentose across anterior face, broadly joining the apical fascia which is broadly interrupted medially, the resulting dark patch rather limited in area, thinly covered with dark tomentum; tergum 2 with an apical pale fascia which is interrupted medially and diverging from posterior rim; terga 3 and 4 with quite broad, apical fasciae which do not reach lateral margins and are slightly interrupted medially, each one more or less ovate in form, tergum 3 with a small, whitish patch on each extreme side that is separated from the fascia; tergum 5 without pale tomentum; punctures of tegulae deep and distinct, very close and fine throughout; punctures deep, distinct, close and rather coarse over vertex, cheeks and upper part of face, becoming very fine and close below antennae and over clypeus; scutum, scutellum and axillae quite deeply, distinctly, rather coarsely and very c1osely punctate throughout, punctures becoming contiguous laterally and posteriorly; punctures of lower portion of pleura deep, distinct, rather coarse, quite close, with only very narrow, shining interspaces at all evident, becoming densely crowded above; punctures of abdominal terga very fine, quite close, evenly distributed, becoming somewhat more crowded on the more apical terga; pseudopygidium transverse and very short.
MALE—Answers to description of female in general, but tegulae dark and tarsi more or less darkened; head without appressed tomentum, the pubescence thin but rather copious and erect; abdominal fasciae more nearly complete on terga 3 and 4, quite strongly narrowed toward each side but not interrupted, tergum 5 with a short, subapical fascia on each side of midline which 4oes pot continue to lateral margin; pygidial plate rather short, broadly rounded or subtruncate, the marginal carina obscure, surface somewhat convex and rather coarsely but shallowly punctate.
TYPES—Holotype: Female, near Saline, Mich., June 26, 1954. Allotype: topotypical (both U. N. Lanham). Paratypes: 1 ♂, Kalbaska Co., Mich., June 19, 1944; 1 ♀, Midland Co., Mich., June 24, 1944 (both R. R. Dreisbach); 1 ♀, Me. Agr. Exp. Sta., Oreno, Me., June 26, 1929; 1 ♀, Inglenook, Pa., June 27, 1923 (H. B. Kirk).
Paratypes are in collections of the U. S. National Museum and IL R. Dreisbach.
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