298 Teneina of Colorado. 



the fiiscia, but as becoming confluent with a discal oblique streak 

 which does extend to the fascia on the one wing, but is entirely absent 

 on the other.) At about the basal one-fourth of the wing length are 

 two other short obh'que discal white streaks, one above, the other 

 beneath the fold ; the fascia placed just behind the middle is of an 

 orange color, and is widest on the costal margin when it is produced 

 backward along the margin, immediately before it is a transverse 

 streak of smooth raised silvery scales, which does not quite touch the 

 costal margin, and is separated from the orange fascia by a narrow 

 line of black scales ; behind the orange fascia, and separated from it 

 by a narrow line of blackish scales, is a smooth raised tuft of silvery 

 scales on the dorsal margin, and there is a similar tuft on the costal 

 margin behind the produced portion of the fascia also separated by a 

 blackish line. The wing behind the fascia is brown, with a short silvery 

 dorsal line, and a similar one at the apex ; hind wings and cilia pale 

 grayish fuscus ; abdomen of the general brown hue, with a longitudi- 

 nal band or wide line of orange-yellow extending along the top of all 

 except the last two segments, and each segment margined beneath 

 and on its sides with silvery; and tuft silvery; legs and tarsi brown, 

 the hinder pair annulate with silveiy. Al. ex. a little over one-half 

 inch. Spanish Bar, August 1. Not surpassed in beauty by any 

 species of this fine genus. 



Gracilaria. 



Two species of this genus feed upon leaves of the "Black Alder" 

 (Alnus sp.) in great numbers. The one which I describe as G. 

 alnivorella makes a short narrow phyllceiiidis-Yike mine on the upper 

 surface in its earlier stages, and after leaving the mine it rolls the leaf 

 downward from the side' and passes the pupa state in a compact whit- 

 ish cocoon under the edge of the leaf which is curled very tightly 

 down over it. The other species which I describe as G. alnicolella, 

 in its early stages makes a small tentiform mine on the under side of 

 the same leaves, and afterward, leaving the mine, it rolls the leaf 

 downward from the tip, and passes the pupa state under a dense 

 greenish-yellow cover or web ribbed or folded along the middle. 



G. alnivorella (n. sp.) 



The antenna? and the palpi are rather shorter and thicker than is 

 usual in gracilaria, Gray. Maxillary palpi whitish, with dark gray 

 or brownish spots; face, third joint of the labial palpi and apex of the 



