237 



Chicago, 111., 1 9, Edgebrook, 111. (Beer) and 1 9, Quincy, 111. 

 (Poling). 



Itame (diastictis) confederata sp. nov. (PI. XXIV, Figs. 5, 6). 



Primaries cream-colored, rather heavily sprinkled with ruddy-brown and 

 crossed by three ruddy-brown lines, broadest on costa; t. a. line evenly and 

 slightly concave, median line parallel to t. a. line and passing through a small 

 black discal spot; t. p. line bluntly angled outwardly below costa, then sinuate; 

 s. t. line merely indicated by a faint brown shading at costa and a more distinct 

 ruddy brown diffuse spot between veins 3 and 4; faint terminal dotted line, 

 more distinct in $ ; secondaries rather less heavily sprinkled than primaries 

 with the t. p. line continued as a curved, smoky, rather broad line. Beneath 

 rather yellower than above with the markings of upper side faintly repeated on 

 primaries but very distinct on secondaries ; no discal dots in $ but distinct ones 

 as well as terminal dotted line in ? which also has the secondaries slightly 

 angled at vein 4. Expanse 28 mm. 



Habitat: Glenwood Spgs., Colo. (July, Aug.) i Durango, Colo. (July). 

 4 $,6 $ . Types, Coll. Barnes. 



This species has been confused with umbriferata Hist, due to a 

 spurious type from Colorado in the Hulst Collection; the true umbri- 

 ferata was described from Soda Spgs., California and is a duller, more 

 purplish colored insect with better defined discal dots and more con- 

 fluent terminal ones and, if our identification from the true type in the 

 Hulst Coll. be correct, at once separable in the $ sex by the antennae, 

 which are scarcely bipectinate but rather strongly serrate. Dr. Mc- 

 Dunnough found the species quite common on the borders of Castle 

 Lake, Siskiyou Co., Calif., a small lake, some 6000 ft. in altitude, sit- 

 uated about 8 miles north-west of Soda Spgs. ; as this lake was one of 

 the favorite hunting grounds of Behrens, from whom Hulst received 

 his type specimen, we should not be surprised if it were captured here 

 rather than at Soda Spgs., a small resort which Behrens made his 

 headquarters, situated in the Upper Sacramento Valley at an altitude 

 of about 2300 ft. ; in any case Dr. McDunnough found no trace of um- 

 briferata in the valleys, although he took a couple of specimens of our 

 new species, confederata. We figure a pair of umbriferata for com- 

 parison. (PI. XXIV, Figs. 3, 4.) 



Itame plumosata sp. nov. (PI. XXIV, Figs. 7, 8). 



$ antennae strongly bipectinate ; primaries creamy- white, sprinkled with 

 yellow-brown, more heavily in basal and terminal areas than in median area ; 

 primaries crossed by three brown lines ; t. a. line bent below costa then straight 

 to inner margin; median line faint (sometimes obsolete) slightly bent below 

 cell, crossing a small dark discal spot; t. p. line well-defined, sinuate, followed 



