82 WILLIAM G. DIETZ, M. D. 



and appearing under the lens to be slightly interrupted about the middle; it also 

 is irregular in outline, and margined behind with a transverse tuft near the 

 costa, and has some scattered silvery scales, margining it behind from the 

 middle to the dorsal margin, and extending back along the margin. Just before 

 the costal fringe is a large silvery spot which extends nearly to the dorsal mar- 

 gin, and almost unites with the silvery scales by which that margin is marked 

 behind the second fascia. In the second fascia, on the extreme costa, are two 

 minute white spots, and on the extreme costa in the large silvery spot before the 

 cilia are two others, and behind them yet two others more distinct ; these last 

 four spots are nearly equidistant, and opposite to them are three others at the 

 base of the dorsal cilia. Cilia showy white. Hindwings and upper surface of 

 the abdomen silvery tinged with golden. Under surface of the primaries brown, 

 tinged with purple, that of the hindwings a little paler. First and second pair 

 of legs mainly white. Venter with the basal half of each segment brown, apical 

 half yellowish white. Al. ex. a little over 4 inch. Kentucky in June. The 

 tufts on the wings are very easily rubbed off. 



This is the type of Chambers' genus Semele, which, however, as 

 stated before, is not distinct from Homosetia Clem. The type in 

 good condition is in Cambridge. A beautiful and strongly marked 

 form; the second silvery fascia is rather behind than "about" the 

 middle; the third tuft is quite large and at the end of the cell ; 

 there is also a small tuft at three-fifths of the fold. I have seen no 

 other specimen like it. 



H. obscurella. n. sp. — Maxillary and labial palpi sordid, yellowish white, 

 second joint of the labial palpi externally and beneath fuscous brown. Face 

 whitish, vertex brown. Antennas sordid, grayish ochreous, finely annulate with 

 fuscous above, basal joint dark brown. Thorax dark purplish brown. Fore- 

 wings dark, golden brown, irrorated with silvery blue and sparsely sprinkled 

 with some darker and paler scales; an oblique scale tuft at one-fourth, imme- 

 diately below the fold, a large discal tuft at one-third, nearer the costa, a trans- 

 verse tuft at end of cell, all the tufts are dark seal brown, scarcely paler within ; 

 along the. base of the costal cilia near the apex are three or four small oblique 

 silvery white spots, preceded by some minute, pale dots on the costa, the last of 

 the costal spots forms with the last dorsal spot a curved line enclosing the apex ; 

 an indistinct pale silvery space between the first and second scale tufts there is 

 also a bluish silvery oblique line from the costa between the second and third 

 scale tufts and another similar spot a little beyond, these latter spots contain no 

 white scales. Costal cilia brown, with three or four pale lines, apical and dorsal 

 cilia yellowish sprinkled with fuscous scales in basal half. Hindwings pale fus- 

 cous, with strongly brassy lustre, cilia concolorous. Underside of wings fuscous 

 with purple reflection. Abdomen fuscous; underside of body and legs grayish 

 white, dusted with fuscous ; tarsi banded with fuscous. 



Exp. 11.0 mm.; 0.44 inch. 



Hab. — Kansas (Onaga). 



A male speciman in my collection, quite distinct from cristatella 

 as well as chrysoadspersella, though nearer the latter. 



