NO. 1376. LEPIDOPTERA OF THE KOOTENAI DISTRICT— DYAR. 925 



L<ti'ni. — Head rounded, squarish, held obliquely, smooth and even 

 in front, clypeus highly trianoidar; deep black, slig-htly .Mhininjr, 

 mouth a little paler, basal joint of antenntu pale. Cervical shield 

 large, dull l)lack, vinous tinted. Body slender, very active, unifornd}' 

 dark vinous brown throughout; anal plate l)lack; tubercles small, 

 slightly raised, appearing paler than the body by reflection of light, 

 really concolorous. Seta> moderate, brownish, longer on the anal end, 

 iv+v; on thorax ia+ib and iia+iil). 



OLETHREUTES CORUSCANA Clemens. 



Thirty-seven specimens, June 11, 13, 16, 17, 18, 19, 2(1, 22, 23, 24, 

 25, 29, 30, July 1, 2, 4, 10 (Ainsworth), 13, 15, and one from Mr. 

 Cockle's collection, June IS, 1J)()2. The specimens are larger than 

 eastern coruscana, the hind wings paler. Some examples dosel}' 

 approach conHteUatana Zeller. 



OLETHREUTES DUPLEX Walsingham. 



Five specimens, June 10, 12, 16, and one from Mr. Cockle's collec- 

 tiori, June 27, 1901. The green larvae were found on aspen, but spun 

 before a description had been prepared. 



EUCOSMA CIRCULANA Hiibner. 



No specimens; one from Mr. Cockle's collection. The specimen is 

 large, like those 1 have from Manitou, Colorado, and Huaeimca Moun- 

 tains, Arizona, and the transverse obscure silvery bands are straight. 

 The costal fold is closely applied and difficult to see. I can not posi- 

 tively observe it in the Kalso specimen, though it is fairly obvious in 

 some of the others. 



EUCOSMA CASTANEANA Walsingham. 



Nineteen specimens, June 26, 27, July 10, and one from Mr. Cockle's 

 collection, June 24. The moths were common, flying about the goose- 

 berry bushes on which their larva' fed. 



EUCOSMA JUNCTICILIANA Walsingham. 



No specimens; one from Mi-. Cockle's collection resembles eastern 

 specimens so nearly that I do not venture to separate it. 



EUCOSMA AGRICOLANA Walsingham. 



Two specimens. June 11. 17. and one from Mr. Cockle's collection. 



EUCOSMA ATOMOSANA Walsingham. 



No specimens; one from Mr. Cockle's collection, considerably worn, 

 seems probably referable to this species on comparison with W'alsing- 

 ham's figure. 



