. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 167 fig. 584: tenth tergite stocky and somewhat hood shaped; claspers with a large, broad basal segment bearing a short, sharp tooth at apex which is nearly as long as the short, sinuate second segment. Female genitalia very wide, the ninth sternite as in fig. Fig. 584.—Fabria inornata, genitalia. A, male, lateral aspect; B, clasper, caudal aspect; C, female, ventral aspect. In Illinois we have taken this species only at Zion, where adults have been collected at lights beside the Dead River. In thi
. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 167 fig. 584: tenth tergite stocky and somewhat hood shaped; claspers with a large, broad basal segment bearing a short, sharp tooth at apex which is nearly as long as the short, sinuate second segment. Female genitalia very wide, the ninth sternite as in fig. Fig. 584.—Fabria inornata, genitalia. A, male, lateral aspect; B, clasper, caudal aspect; C, female, ventral aspect. In Illinois we have taken this species only at Zion, where adults have been collected at lights beside the Dead River. In this locality we reared all the species of larvae that we found except one, described below as Genus A. Similarly, all the Phryganei- dae adults which we collected there were reared except one, Fabria. There is a very good possibility, therefore, that Genus A is the larva of this species. Little is known regarding the range of the species. It was described from Minnesota, and this is only the second state record for it. Illinois Records.—Zion, Dead River: July 7, 1937, Frison & Ross, 2 9 ; May 28, 1938, Mohr & Burks, 1 $ ; June 3, 1938, Mohr & Burks, 2$ ; June 4, 1938, Ross & Burks, 2$ , 19; June 6, 1940, Mohr & Burks, 5 i . Phryganeid Genus A Larva.—Fig. 566. Length 22 mm. Head, pronotum and legs yellow; head with no mesal line but with two pairs of dark lines, one outside the frons, the other on the lat- eral margin; pronotum with posterior mar- gin black, and each half with a diagonal black line, the two not meeting posterad on the meson. Meso- and metanotum without any sclerites near the meson and with a dark purple line on each side of the meson. Of the many phryganeid larvae collected in the Dead River at Zion, Illinois, this spe- cies alone was not reared. As explained in the discussion of the preceding species, cir- cumstantial evidence indicates that this might be the larva of Fabria inornata. This larva has been taken only in the Dead River, whe
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