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 10 mm.; entirely black, without maculations; face considerably longer than distance between eyes above; eyes very slightly convergent below; lateral ocelli subequally distant from eyes and each other, considerably nearer margin of vertex; clypeus evenly convex, apical margin very slightly incurved on each extreme side; mandibles 3-dentate, middle tooth somewhat nearer apical tooth than to inner angle; cheeks considerably broader than eyes; transverse carina of prothoracic tubercies barely evident; tegulae smooth and shining, minutely and quite sparsely punctate; wings quite deeply infuscated, veins piceous; apical spines of front tibiae reduced to acute angles, those of mid tibiae well developed, hind tibiae with a pair of apical, triangular carinae but without distinct spines; spurs of front legs testaceous-hyaline, those on mid and hind tibiae blackish; pubescence entirely pale, very short and thin, somewhat more dense on each side of face and on pleura; abdominal terga 1-3 with thin, whitish and inconspicuous, apical fasciae, tergum 4 subfasciate toward sides; punctures quite deep and distinct, rather coarse, close in general, very fine and crowded over clypeus and lower portions of face, becoming somewhat coarser and more distinct on vertex and cheeks, coarse and close on pleura and scutellum, somewhat finer on scutum, distinctly but not widely separated over median portion of disc; posterior face of propodeum with a narrow, dorsal, deeply pitted area just beneath metanoturn; punctures of abdominal terga deep and distinct, slightly separated on terga 1-3 medially, becoming slightly coarser and closer laterally, very close on 4, coarse and close on 5 and 6, apical margin of 6 forming a rather distinct, apical lip; abdominal sterna coarsely and rather closely punctate toward apical margin, the margins very narrowly testaceous-hyaline, sternum 5 quite coarsely and very closely punctate over entire disc, and 6 finely and closely punctate, apical margin angulate.
TYPES—Holotype: Female, 2 miles west of Archer, Florida, March 23, 1953 (H. F. Howden) [authors coll.]. Paratypes: 1 ♀ , Cork Screw Swamp, Collier Co., Fla., April 9, 1958 (H. V. Weems, Jr., on Cirsium) [Florida Plant Board]; 1 ♀ Sarasota, Florida, January 1937 (F. Pelton) [U.S.N.M.].
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