ART. VI.-THE TINEINA OF COLORADO. 



By Y. T. CHA3IBERS. 



Descriptions autl notes of many of these species have heretofore been 

 published in the Cincinnati Quarterly Jonrnal of Science, and in the Cana- 

 dian Entomologist. It has, however, been deemed best to give a list of 

 the species, with brief notes upon them, in the present paper, which, with 

 the new species now first described, presents a compendium of all that 

 has been published upon the subject to this time. 



Froniiba yuccasella Eiley. — Very abundant in the flowers of " soap- 

 weed" {Yucca) as high up on the mountains as 7,000 feet, in the vicinity 

 of Colorado Springs. Mr. Riley says (Fifth Annual Report Noxious and 

 Beneficial Insects of Missouri, p. 151), "Front wings uniformly silvery 

 white", but at least half of the numerous specimens observed by me 

 in Colorado had the wings more or less spotted with black (like 

 Hyponomeuta, to which in the form and neuration of the wings it seems 

 somewhat allied, though its aflSnities seem to be rather with the true 

 Tineid(c; it is, however, sui generis). These spots vary in number from 

 tp 13, and when all are present are arranged as follows : one (the larg- 

 est) at the end of the disk, with three others before it, making a cof- 

 fin-shaped figure; one on the dorsal margin before the cilia; and eight 

 others around the apex. The one at the end of the cell is found oftener 

 than any of the others, and those around the apex oftener than the 

 other four. The expanse of wings is given by Mr. Riley at 1.00 inch for 

 the 9 and 0.90 inch for the $ . The largest 9 specimen observed by me 

 scarcely exceeded 10 lines and the smallest $ was scarcely 6 lines, so that 

 it seems to attain a greater development of wings in the East than in the 

 ^Yest. contrary to the rule said by Prof. Baird, Dr. Packard, and others 

 to ]>revail among other insects and birds. 



A large proportion of the seed-pods examined by me, fully one- third, 

 showed no trace of the larva. 



Ancsycliia mlniseUa Cham. (Can. Ent., vol. vi, p. 233). — First described 

 from Texas, from numerous specimens, all of which seem to have been 

 somewhat faded, or are a little different from the Colorado specimens. 

 In these, the outer surface of the second joint of the palpi is dar;- 

 browu, the inner surfixce white; third joint white, with the tip and a 

 wide anuulus in the middle brown ; anteunie fuscous ; head, thorax above r 

 and patagia white; a brown spot on the middle of the anterior margin 

 of the thorax, and four others, two on each side, one of them about the 



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