Reprinted from: Cresson, E.T., 1878. Descriptions of new North American Hymenoptera in the collection of the American Entomological Society. Trans. Am. Entomol. Soc.7:70.
Head and thorax blue, thinly clothed
with pale pubescence; head broader than thorax, face broad and rather
thickly pubescent, lower corner of face, clypeus, labrum, and mandibles
except tips white; flagellum pale beneath; thorax subopaque, tegula dull
testaceous; wings hyaline, neuration as in hyalina; legs black, thinly clothed
with pule pubescence, knees and line on the four anterior tibia, and their
tarsi yellowish; abdomen oblong-ovate, convex, shining black, a pale yel
lowish fascia on segments 2?5, interrupted on the disk and more or leas
suddenly dilated laterally, sometimes a pale lateral spot on sixth segment.
Length .23 inch.
Hab.?California, (Crotch). Three specimens.
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