Monographs of the Diptera of North America Volume 6, Nos. 1-2 (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. 1867 Excerpt: ...fourth longitudinal vein. Male. Its fore femora are thickened as far as their middle, and on the under side, precisely at the end of this thickening, they are densely bearded with stiff little bristles; the fore tibiae are visibly stouter than in the female, beset on the under side with numerous and erect, on the upper side with less numerous and less erect bristles; fore tarsi with unusually long hairs, especially on their first two joints. The structure of the middle femora is similar to that of the fore femora, though their thickening is less strong and reaches as far as the tip; the thick beard on the under side, formed of short stiff bristles, is thus brought nearer to their end. The middle tibia? are of rather irregular structure; from the liasis to about their middle they are distinctly thickened and fringed on the upper side with a few long black bristles, on the under side they are provided with a small tubercle, beset with short bristles. That part of the middle tibiae, which is not thickened, is of a plain structure, though beset on the under side with a row of rath er long, black, bristle-like hairs. The middle tarsi and the whole hind feet are of a plain structure. Hab. Pennsylvania. (Osten-Sacken.) 2. C. ClandlcanS, nov. sp. % and 9.--Olivacens, facie ochncei, alia infuscatis, punctum nigrum in ultimo vena? quartte segmento gerentibus, coxis anticis ex testaceo fuscis, pedibns ex rufo testaceis. %. Tibiis intermediis ora9sissimis, varis. supra nigro-spinnloois, tarsis mtermediis totis iiigris, articulo primo erasso, reonrvo, supra nijrro-setoso, Ursis anticis posticisqne gimplicibUB inde ab artim mgn-f. Pedibus simplicibu. I indeobarti Olive-green; the face ochre-yellow; wings Infusoated, with a Hack spot upon the last segment of the fourth lo...