|
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 11 mm.; brilliant green; face considerably longer than distance between eyes above; eyes slightly convergent below; lateral ocelli subequally distant from eyes and each other, slightly nearer margin vertex; clypeus broadly convex, considerably produced apically, median area of margin very slightly incurved, narrowly blackened and shining, with a series of shallow pits; median length of labrum about equal to basal width; dentate margin of mandibles much as distincta (fig. 32); cheeks much broader than eyes; wings subhyaline basally, becoming lightly infuscated toward apical margin, 2nd recurrent vein reaching 2nd submarginal cell considerably nearer apex than 1st does to base; coxae, trochanters, femora, tibiae and hind basitarsi strongly metallic-green, other tarsal segments chiefly black, mid and hind spurs piceous; pubescence largely pale on cheeks below, on pleura and propodeum, the face, vertex, scutum and scutellum with short, suberect, whitish pubescence interspersed with elongate and erect fuscous hairs; basal abdominal tergum covered with elongate and rather dense whitish pubescence, that on the following terga pale, short and thin, but erect and quite evident, that on 6 subappressed, very fine and inconspicuous, scopa entirely black; punctures fine, close, deep and rather distinct in general, subcontiguous or crowded over most of head and thorax, but pleura rather dull, with dense, somewhat shallow, confluent punctures; lateral faces of propodeum somewhat smoother but dull, posterior face rather dull, punctures dense but very shallow and obscure, dorsal area rather smooth and velvety, becoming very narrowly and finely substriate along upper margin; abdomen shining, punctures fine, quite close but not crowded on terga 1-5, uniformly fine and crowded on 6, apical margins very slightly and narrowly impressed, these areas deeply punctate nearly to the rims.
MALE — Length 8-9 mm.; brilliant green; face considerably longer than distance between eyes above; eyes convergent below; lateral ocelli subequally distant from eyes and each other, slightly nearer margin of vertex; clypeus convex, somewhat produced apically, margin nearly straight, the edge narrowly blackened, shining and impunctate, with a few, minute crenulations; median length of labrum slightly less than basal width; mandibles distinctly bidentate; cheeks about equal to eyes in width; wings subhyaline, 2nd recurrent vein reaching 2nd submarginal cell much nearer apex than 1st does to base; tarsal segments slender and simple, anterior margin of hind basitarsi with a small tubercle near apical third, the more apical tarsal segments dark, but basitarsi and remainder of legs brilliant green, mid and hind spurs piceous; pubescence entirely yellowish- white, rather long, erect and copious on head, thorax and basal abdominal tergum, short and erect, but rather copious on terga 2-6; punctures close and rather coarse over most of head and thorax, deeper and more distinct on vertex and dorsum of thorax, crowded on pleura, lateral faces of propodeum somewhat smoother but tessellate, posterior face with shallow, scattered and vague punctures, dorsal area somewhat velvety, becoming narrowly, irregularly striate along upper margin; abdominal terga shining, quite deeply and closely punctate in general, apical margins rather narrowly depressed, partially invaded by very fine punctures, but apical rims narrowly shining and impunctate; tergum 6 with a very small and obscure, median, apical emargination, 7 not metallic, quite broad and triangularly produced, with a subtriangular and rather shallow, median emargination; sternum 2 broadly outcurved apically, covering sternum 3 in large part and base of 4, 3 with a deep, triangular, median emargination which is partially filled with more or less convergent setae (fig. 33), 4 broadly produced apically, very slightly incurved and sparsely, finely setose medially, 5-8 entirely retracted and submembraneous. A study of the genital armature of illinoensis was not possible because of insufficient material.
DISTRIBUTION — Illinois to Texas, no seasonal data available but from the flower records it appears to be vernal, as most species in this genus.
FLOWER RECORDS — Robertson (1929) has recorded this species on Astragalus, Fragaria, Hypoxis, Lithospermum and Ranunculus.
|
|
Extracted from: Robertson, C. (1897). North American Bees - Description and Synonyms. Transactions of the Academy of Science od St. Louis. Vol. 7. No. 14.
Male - Entirely bright green, of the shade of Augochlora viridula,
including the tegulae and legs, except apical joints of tarsi;
with a bluish or purplish reflection; closely and rather finely
punctured, most coarsely on the head, most finely and sparsely
011 abdomen, which is shining; pubescence long and thin,
white below, especially on clypeus where it is also dense,
above slightly tinged with ochraceous, on the abdomen short
and appearing subfuscous; wings hyaline, nervures fuscous,
second submarginal cell longer than first, narrowing nearly
one-half towards marginal, receiving first recurrent nervure
nearly one-third from base, the second near the tip; sixth
segment slightly sulcate on the disc longitudinally, the apical
margin produced, slightly sinnate on the sides, entire medi-
ally, with only the slightest inuication of a notch, apical
segment strongly bifid. Length 8 mm.
|
