. Bulletin. Natural history; Natural history. % Natural History Survey Bulletin Vol. 26, Art. 1 FaraUptuphlehia. but differ in the shape of the labrum. «lt;s. 197, 198; in Hahruphh- bioilts. the anterior margin has a liecpcr median clett. The body is depressed; the head is seniiHattened and held in a nearly hypo;:nathous position. Kach maxillary palp has three segments, and the labial three. Each antenna is as long as the head and thorax combined. The claws are long and slender and each bears a single ventral row of denticles. The abdominal gills are all of the same type. P^ach gill
. Bulletin. Natural history; Natural history. % Natural History Survey Bulletin Vol. 26, Art. 1 FaraUptuphlehia. but differ in the shape of the labrum. «lt;s. 197, 198; in Hahruphh- bioilts. the anterior margin has a liecpcr median clett. The body is depressed; the head is seniiHattened and held in a nearly hypo;:nathous position. Kach maxillary palp has three segments, and the labial three. Each antenna is as long as the head and thorax combined. The claws are long and slender and each bears a single ventral row of denticles. The abdominal gills are all of the same type. P^ach gill has a slender stem which subdivides to produce two long, slender, lanceolate filaments. The caudal filaments are longer than the body. This genus includes three species, one of which occurs in Illinois. Habrophlebiodes amcricuna (Hanks) Hahrophlebia americana Banks (1903:235). Choroterpes hetiem Needham (1908:194). After a study of Hanks' types in the Mu- seum of Comparative Zoology and the re- mains of Needham's types at Cornell Uni- versity, I agree with McDunnough (1925a: 210) that betteni is a synonym of americana. It has two closely related species: britnnci- pennis Herner (1946: 61), a southern species with amber-tinted wings, and auniilata Traver (:199), a species described from Oklahoma that has the posterior margins of the abdominal segments edged with black. Male.—Length of body and of fore wing mm. Head dark red-brown, an- tennae tan. Thorax dark brown; fore coxa and femur brown, the latter darker at apex, fore tibia tan, brown at apex, fore tarsus light tan; middle and hind legs mostly light tan or yellowish, with coxae brown, and femur of hind leg darkened with brown in middle and at apex; wings hyaline, longi- tudinal veins faintly brown-stained, cross- veins hyaline. Abdomen mostly dark brown, with pale yellowish markings of variable extent at anterior margins of middle ster- nites and tergites; genital forceps, fig. 215, light tan to brown, penis
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