. Bulletin. Natural history; Natural history. 150 Illinois Natural History Survey Bulletin Fol. 23, Art. 1 16, 1936, Ross & Mohr, 45, 1$. Dan- ville, Middle Fork River: Aug. 27, 1936, Ross & Burks, 2 larvae. Eddyville, Lusk Creek: June 19-20, 1940, Mohr & Riegel, 5 (J , 59, 1 pupa. Elizabethtown : June 25, 1932, Ross, Dozier & Park, 1 $. Fox Lake: June 30, 1935, DeLong & Ross, 19. Harrisburg: June 15, 1934, DeLong 6 Ross, at light, 1(5. Herod: June 20, 1940, Mohr & Riegel, 1^. Homer: Aug. 5, 1931, H. H. Ross, 1 $ . Momence: Aug. 21, 1936, Ross & Burks, 1 <?. Otta
. Bulletin. Natural history; Natural history. 150 Illinois Natural History Survey Bulletin Fol. 23, Art. 1 16, 1936, Ross & Mohr, 45, 1$. Dan- ville, Middle Fork River: Aug. 27, 1936, Ross & Burks, 2 larvae. Eddyville, Lusk Creek: June 19-20, 1940, Mohr & Riegel, 5 (J , 59, 1 pupa. Elizabethtown : June 25, 1932, Ross, Dozier & Park, 1 $. Fox Lake: June 30, 1935, DeLong & Ross, 19. Harrisburg: June 15, 1934, DeLong 6 Ross, at light, 1(5. Herod: June 20, 1940, Mohr & Riegel, 1^. Homer: Aug. 5, 1931, H. H. Ross, 1 $ . Momence: Aug. 21, 1936, Ross & Burks, 1 <?. Ottawa: July 3, 1937, at light, Werner, 1 S . Hydroptila amoena Ross Hydroptila amoena Ross (1938a, p. 124); cf. Larva.—Unknown. Adults.—Size and color as for armata. Seventh sternite of male with a long mesal process which is curved ventrad and slightly indented at apex, the apical margin slightly rounded and neither flanged nor serrate. Invaginated lateral portion of ninth seg- ment long and narrow. Male genitalia, fig. 513: tenth tergite narrow and projecting; claspers short, with a wide base and narrow apex, slightly beaked at tip; aedeagus with very short spiral wound tightly around the short neck, the apical portion long and divided almost to base to form long proc- esses. Female genitalia, fig. 528: eighth sternite tapering and semimembranous, with a pair of ovate lobes at apex, each bearing three long setae. Allotype, female.—Broken Bow, Okla- homa, along small creek near town: June 8, 1940, Mrs. Roy Weddle. Our only records for this species are col- lections of males from Herod, Illinois, and Turner Falls State Park, Oklahoma (the type series) and a subsequent collection of both sexes from Broken Bow, Oklahoma. Presumably this species is a spring form inhabiting small streams in the Ozarks and neighboring ranges. Illinois Records.—Herod: May 29, 1935 Ross & Mohr, 1 $ ; Gibbons Creek, April 19, 1937, Ross & Mohr, 1 $ . Hydroptila waubesiana Betten Hydroptila
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