Reprinted with permission from: Mitchell, T.B. 1960 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.
FEMALE—Length 5-6 mm.; black, antennae piceous above, more testaceous beneath; face marks pale yellow, filling area between clypeus and eyes, abruptly truncate at level of antennae; tubercles, transverse marks on collar, tegulae anteriorly, pale yellow; posteriorly the tegulae are ferruginous; wings very lightly infuscated, veins and stigma brownish; tibiae yellow at base, legs otherwise dark; face narrowed below; cheeks slightly more than half as broad as eyes in lateral view; facial foveae rather short and obscure, linear, separated from eyes by about an equal space, not at all divergent above; basal segment of flagellum about as long as broad, 2nd and 3rd segments distinctly broader than long, 4th nearly as long as broad, the following segments fully so; punctures of face below antennae shallow, obscure and sparse, more coarse, deep and distinct above antennae, well separated but not sparse; very coarse and deep on thorax above, quite close over most of scutum, somewhat more sparse on scutellum, and even more coarse and close on pleura; dorsal area of propodeum quite extensive, hardly distinguishable from metanotum, both very coarsely rugose; abdomen shining, very finely but distinctly punctate, rather sparsely so on basal segment, closer on the more apical segments.
MALE—Length 4-6 mm.; black; antennae pale ferruginous, scape blackish, maculated; tegulae more piceous, maculated; wings lightly infuscated, veins and stigma brownish-piceous; mandibles and labrum black; maculations cream-colored, as follows: entire face below antennae, supraclypeal mark extended upward between antennae, lateral face marks obliquely truncate above antennae, very slightly divergent from eyes above, narrow anterior stripe on scape, large blotch - on tegulae, transverse marks on collar, tubercles, front tibiae in large part, and apex of femur, basal portions of mid and hind tibiae, and mid and hind basitarsi; other tarsal segments, including entire front tarsi and anterior face of front tibiae more ferruginous; face narrow, elongate; eyes convergent below; cheeks about half as wide as eyes in lateral view; scape slender, no broader than flagellum, slightly curved, basal segment of flagellum considerably broader than long, length and breadth of 2nd and following segments subequal; front coxae simple; dorsal area of propodeum rather extensive, hardly distinguishable from metanotum, both being very coarsely rugose, scutum and scutellum shining, very coarsely and deeply punctate, punctures well separated but not sparse, punctures on pleura even more coarse and quite close; abdomen deeply and distinctly, although relatively finely punctate, rather sparsely so on basal segment, closer on the more apical segments.
DISTRIBUTION—In the East this species has been collected in Michigan, New York, New Jersey, Indiana, District of Columbia, Virginia, North Carolina and Georgia, as also in Quebec and Ontario. It is in flight from May until September.
FLOWER RECORDS—Only one flower collection record has been made, one specimen having been collected on cow-pea (Vigna inensis), at Raleigh, North Carolina.
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