. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 85 larvae; May 23, 1939, Burks & Riegel, 2$ , 1 $ , 3 larvae; June 6, 1939, Burks & Riegel, 4<5, 39 ; June 13, 1939, Prison & Ross, 3$, many larvae; Sept. 19, 1939, Ross & Mohr, 3 larvae. Fountain Bluff: May 14, 1932, Frison, Ross & Mohr, 1 ? ; May 15, 1932, Ross & Mohr, 19. Oakwood, small tributary Middle Fork River: July 14, 1939, Burks & Riegel, 1 larva. Utica, Split Rock Brook: Feb. 1, 1941, Frison, Ries & Ross, 2 larvae; May 24, 1941, Ross & Burks, 1 9 . Stnicri
. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 85 larvae; May 23, 1939, Burks & Riegel, 2$ , 1 $ , 3 larvae; June 6, 1939, Burks & Riegel, 4<5, 39 ; June 13, 1939, Prison & Ross, 3$, many larvae; Sept. 19, 1939, Ross & Mohr, 3 larvae. Fountain Bluff: May 14, 1932, Frison, Ross & Mohr, 1 ? ; May 15, 1932, Ross & Mohr, 19. Oakwood, small tributary Middle Fork River: July 14, 1939, Burks & Riegel, 1 larva. Utica, Split Rock Brook: Feb. 1, 1941, Frison, Ries & Ross, 2 larvae; May 24, 1941, Ross & Burks, 1 9 . Stnicridea McLachlan Smicridea McLachlan (1871, p. 134). Geno- type, here designated: Smicridea Jasciatella McLachlan. This genus has not yet been recorded from Illinois. The genotype has been taken com- monly in Texas and Oklahoma and may ultimately be found in southern Illinois. The distinctive larval mandibles, fig. 287, pupal mandibles and apical processes, figs. 309, 316, adult venation, fig. 330, and male genitalia, fig. 340, will readily identify this c^.. Fig. 340.—Smicridea Jasciatella, male genitalia. species. The larvae have been collected in small spring-fed streams in both Texas and Oklahoma. I have found the adults especi- ally abundant in this latter state. Potamyia Banks Potamyia Banks (1900a, p. 259). Genotype, by original designation: Macronema flavum Hagen. Only one species of this genus is known. In structure the female is very similar to that of Hydropsyche, but the male, larva and pupa are so distinctive that there is no question as to the separate generic status of Potamyia. Potamyia flava (Hagen) Macronema flavum Hagen (1861, p. 285); Hydropsyche kansensis Banks (1905^, p. 15); Larva.—Length 13 mm. Head, thoracic sclerites and legs brownish yellow, the frontal area of head with a reddish cast, and the thoracic sclerites bordered by a narrow, black line. Frons subtriangular. Mandibles, fig. 283, with long, wide, lateral flanges along basal half. Hair on abdo
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
