Proceedings of the United States National Museum Volume 43 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...plate pale yellowish, with a faint silvery to yellowish bloom. Occiput ashy, with grayish-golden pile. Pleurse thinly brassy pollinose. Mesoscutum brassy-cinereous, with five very faint dusky vittae, the outer ones interrupted at" suture, the next stopping a little behind suture. Scutellum wholly reddish yellow. The abdomen bears a complete median vitta of the same golden-silvery pollen as that of face and cheeks, crossed by a broad fascia of the same pollen occupying slightly more than anterior onehalf of fourth segment, and leaving two brown areas on posterior half of same. The broad median disk of first segment is brown, as is also a broad area bordering the median vitta on second segment and a more or less well defined area bordering vitta on third segment; the rest of abdomen is deep yellowish-red, extending broadly on venter. Hypopygium yellowish-red. Legs brown, tibiae reddish. Wings evenly and lightly infuscated, the long veins yellowish, the crossveina blackish. Type--Cat. No. 15169, U.S.N.M. ARCHYTAS INCASANA, new species. Archytas, ep. Towksbnd, Ann. Ent. Soc. Amer., vol. 4, 1911, p. 132.--TD 3989. Length of body, 12 to 13 mm.; of wing, 9 to 10 mm. Numerous specimens of both sexes, Piura, Peru, at nearly all times of year, on flowers of Spilanthes, sp., Mikania, sp., and others, and on foliage. Most numerous in November. The males run a little smaller than females. Head silvery-white, the parafrontals in female of a distinct golden shade, those of male usually silvery-cinereous but sometimes slightly golden. Occiput silvery, the pile yellowish-gray to golden. Palpi light reddish-yellow, first two antennal joints and base of third nearly same shade or slightly darker, rest of third joint and all of arista dark brown. Frontalia pale honey-yell...