294 ' Teneina of Colorado. 



annulate with white ; each segment of the abdomen beneath margined 

 behind with silvery white, and anal tuft whitish. Al. ex. averaging 

 about five lines. Season, August. 



In company with the multitude of specimens, from which I have 

 prepared the foregoing description, of what I regard as a single species, 

 was a single specimen having the base of the dorsal margin of the 

 forewings white, and the first dorsal streak forming a large square spot 

 with a tooth projecting towards but not touching the second costal 

 streak. I regard it also as belonging to the same species. 



Argyresthia. — A. goedastella, Auct. 



Only known heretofore in this country by a single specimen sent to 

 me by M. Belanger from Quebec, this species occurs in the greatest 

 abundance among the leaves of the 'Black Alder' (Abms sp?) along 

 Clear Creek, and on Grand River, in Middle Park, reaching an 

 elevation of at least 9,000 feet, where still water freezes nearly every 

 night in August. 



CoLEOPHORA. — C. luttocostella (n. sp.) 



Second joint of palpi with a small projecting tuft; basal joint of 

 tlie antennai enlarged. Dark greyish ocherous, or perhaps as 

 correctly, dark greyish drab, and in some lights brownish ; basal 

 joint of the antennse and the annulations of the stalk yellowish 

 ocherous, and a narrow streak of the same hue along the costal margin 

 of the forewings, which ai'e a little dusted with brown especially 

 toward the apex ; abdomen with a leaden hue, sparsely dusted with 

 ocherous on the under surface and the tuft ocherous. In many 

 specimens whicli were taken at the same time, the light color of the 

 costal margin is very narrow being sometimes confined to the extreme 

 costa or even entirely absent near the base of the wing and sometimes 

 the brown dusting is very dense. Al. ex-, about seven lines. It occurs 

 in the latter part of July and in August in swarms in the grass at 

 Spanish Bar. Altitude 7,800 feet, and a single specimen of it, or of 

 an allied species, was observed but not secured at an elevation of over 

 11,000 feet near Berthouds Pass. 



C. spaisijndrclla (n. sp.) 



Antennte simple. Second joint of palpi with a minute projecting 

 tuft. White with a faint appearance of ocherous dusting on the 

 forewings. Al. ex. Q^ lines. Spanish Bar, in August. 



