128 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



G. eollinusella n. sp. — Thorax, head, palpi, and antennae white, the 

 outer surface of the second joint of the palpi with two small patches of 

 brownish dusting, the autemife annulate with brown, and the thorax faint- 

 ly stained with pale yellowish. Fore wings very pale yellow, almost whit - 

 ish, with three whitish fascia- not very distinct from the surrounding parts 

 of the wing, except by the brownish scales with which they are dusted : 

 the first is about the basal fourth, the second about the middle, and the 

 i bird just before the cilia, and each of the first two contains a small 

 brownish spot placed just above the fold ; apex and cilia sparsely dusted 

 with brownish scales. Hind wings pale fuscous, with paler cilia excised 

 ath the tip. Abdomen pale fuscous above, white beneath; anal tuft 

 white. Expanse of wings, nearly S lines. Foot-hills near Edgerton; 

 altitude about 7,000 feet. 



G. gallcesolidaginis Riley. — Specimens bred from galls in Soliddgo 

 gathered in Middle Park (altitude 8.000 feet) in August are smaller and 

 with the markings much less distinct than those from the Mississippi 

 Valley. See remarks in Cin. Quar. Jour. Sci.,vol. ii, p. 290. 



G. 10-maculella Cham. (Cin. Quar. Jour. Sci., vol. ii, p. 290): G. 4 mar»- 

 lella Cham. (Cin. Quar. Jour. Sci., vol. ii, p. 290) ; G. 8-maculella Cham. 

 (Cin. Quar. Jour. Sci., vol. ii. p. 291); G. albimarginella Cham. (Cin. Quar. 

 dour. Sci., vol. ii, p. 291). — All captured at Spanish Bar in July and Au- 

 gust; not met with elsewhere except a few specimens of the last two 

 taken in Middle Park. 



G. ribesella Cham. (Cin. Quar. Jour. Sci., vol. ii, p. 290). — A pretty spe- 

 cies, the larva of which sews together the leaves of the red wild cur- 

 rant in the mountains. Altitude, 8,500 feet. 



Larva' of Gekchia. — Several larvae of this species were met with 

 which 1 did not succeed in rearing to the imago. One of these feeds 

 on the leaves of Thermopsis montana, sewing many of them together 

 in a bunch. It is pale greenish-white, head stramineous, next segment 

 pale stramineous, and has five greenish-yellow or sometimes almost 

 reddish longitudinal stripes extending over the other segments. 



Another when very small mines, and when older sews together, leaves 

 of Physalia viscosa. It has the head and next segment piceous, and on 

 each of the other segments six minute black spots (two behind the 

 other four), and in the latter part of June is one-fourth inch long. 

 Young specimens scarcely show the black spots. It is at first pale green- 

 ish, then becomes bright apple-green, and when full grown the head 

 and upper surface of the next segment are ferrugiueous, divided on the 

 segment into two spots, that segment and the next one being bright ap- 

 ple-green and the remaining segments purple. I have little doubt that 

 it is the larva of G. physaliella Cham., heretofore described from Ken - 

 lucky. 



Another feeds on oak-leaves. Head and next segment reddish stra- 

 mineous or pale ferrugiueous. Next three segments greeu. remainder 



