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 12 mm.; greenish-blue, becoming more distinctly green on dorsum of thorax, legs black; face much longer than distance between eyes above; eyes sub- parallel; lateral ocelli subequally distant from eyes and margin of vertex, very slightly nearer to each other; clypeus convex, much produced apically but not at all thickened, median area of apical margin nearly straight, narrowly shining and impunctate; median length of labrum about equal to basal width; mandibles obscurely 4-dentate (fig. 32); cheeks considerably broader than eyes; wings subhyaline basally, becoming faintly infuscated along apical margin, 2nd recurrent vein reaching 2nd submarginal cell somewhat nearer apex than 1st does to base; tarsal segments simple and unmodified, mid and hind spurs piceous; pubescence quite copious, yellowish-white on dorsum of thorax and basal abdominal tergum, with pale hairs in part on vertex, elsewhere black, scopa entirely black; discal pubescence of terga 2-5 rather long and erect, quite copious, entirely black; punctures in general quite deep and distinct close in large part, close but not crowded on vertex and on cheeks below but somewhat crowded on median area of cheeks, subcontiguous below ocelli, becoming very fine and close at sides of face below, clypeus closely and quite coarsely punctate above, becoming very finely and obscurely punctate toward apical margin; punctures of scutum fine and densely crowded anteriorly, becoming somewhat more coarse and distinct but still close posteriorly, those on scutellum uniformly close and rather fine; punctures of pleura rather fine and shallow, close in general; lateral faces of propodeum dull but rather smooth, posterior face obscurely but more definitely punctate, dorsal area velvety, be. coming very narrowly and obscurely substriate along upper margin; abdominal terga shining, median punctures of 1-4 fine and rather widely separated but not sparse, becoming close toward sides, apical margins rather broadly impressed and entirely impunctate, tergum 5 somewhat more closely punctate and 6 very finely and densely punctate throughout.
MALE—Length 13 mm.; bluish-green, the vertex, upper half of face and dorsum of thorax somewhat brassy, legs black; face muchlonger than distance between eyes above; eyes very slightly convergent below; lateral ocelli subequally distant from eyes, margin of vertex and each other; clypeus slightly convex, apical margin considerably produced, nearly straight; median length of labrum considerably less than basal width; mandible bidentate, inner tooth broadly truncate; cheeks considerably broader than eyes; wings subhyaline, 2nd recurrent vein reaching 2nd submarginal cell about half the distance from apex as 1st does to base; tarsal segments unmodified, anterior margin of hind basitarsus not toothed; front spurs testaceous-hyaline, mid and hind spurs black; pubescence elongate, whitish on face, pleura and terga 1 and 2, more yellowish on vertex and dorsum of thorax, black on cheeks, mid and hind legs, and terga 3-6; punctures fine and densely crowded over mostof head and thorax lateral faces of propodeum somewhat smoother, punctures fine and rather shallow, posterior face dull and tessellate, punctures becoming inevident medially, propodeal triangle dull and tessellate but rather smooth; punctures of abdominal terga somewhat finer, more distinctly separated medially on 1-5, becoming slightly closer toward extreme sides, apical margins quite broadly shining and impunctate; apical margin of tergum 6 nearly straight, without a median emargination, 7 broadly subtruncate, with a shallow median emargination; sternum 2 slightly outcurved apically, with a small, shallow, median emargination, not hiding margins of 8 and 4, 3 with a quite deep, median emarginate area which is conspicuously fringed, but the setae short, not meeting at midline; apical margin of sternum 4 broadly rounded, not at all thickened, margin of 5 nearly straight, 6-8 (fig. 26) retracted, lateral portions of 7 quite heavily sclerotized and setose; genital armature as shown.
DISTRIBUTION — British Columbia to New Mexico, east to Michigan, April to June. This is the first record of integra in the East, and is based on the following: 2 ♀♀, Chippewa Co., Mich., June 7, 1959 (Dreisbach).