80 WILLIAM G. DIETZ, M. D. 



As stated before, the two species described by Chambers, were 

 placed by him in Semele. 



They are distinguished as follows : 



With transverse white fascia argentistrigella. 



Without such a fascia argentiuotella. 



H. argentistrigella Ch. — Dyar's List, p. 574, No. 6546. 



I here give Chamber's description : 



" Face and palpi silvery white, outer surface of the labial palpi brown ; antennae 

 silvery beneath, maroon brown above, annulate with silvery white; vertex 

 maroon brown, thorax above, a spot under each wing and the basal portion of 

 the primaries rich maroon brown, or in some lights violaceous, with a narrow 

 irregular white facia upon the wings behind the maroon basal portion ; behind 

 the fascia the primaries are maroon brown or violaceous mixed with white 

 towards the facia, the white gradually disappearing towards the apex. Six 

 oblique silvery costal streaks, the first being small and the others becoming grad- 

 ually larger to the fifth, the sixth again being smaller; two distinct dorsol apical 

 white streaks and a small patch of maroon, dusted with white in the dorso-apical 

 part of the wing, which is continuous with those of the five dorsal silvery streaks; 

 dorsal cilia silvery; .abdomen violaceous, each segment silver fringed; legs 

 silvery iridescent. Alar ex. i inch. Kentucky. 



Not known to me in nature. 



H. argentinotella Ch.— Dyar's List, p. 574, No. 6547. — Palpi and face 

 creamy yellowish, second joint of labial palpi blackish externally. Vertex, 

 thorax and basal portion of forewings a rich velvety brown, patagia mixed 

 with whitish. Antennas over f, brown, finely annulate with pale, the basal 

 portion of the forewings is angulated externally on the fold, it reaches to 

 about one-fifth on the costa and one-fourth on the dorsal margin, and extends 

 more or less interruptedly on the fold, and also along the costal margin, imme- 

 diately beyond the basal patch, the wing is strongly suffused with silvery white 

 to about the middle, when it becomes overlaid with bronzed brown, more espec- 

 ially in the dorsal half of wing; the dark brown of the costal margin becomes 

 gradually wider towards the apex, and completely covers the apical part of the 

 wing; on the costa are eight silvery white oblique spots, the first of these is 

 immediately beyond the basal space, and is almost confined to the extreme costa, 

 the following spots become less and less oblique, all pointing backward, except 

 the last, just before the apex, which is perpendicular to the margin, and points 

 forwards, opposite to the last is a similar dorsal spot, and preceding it, five or 

 six oblique, but less distinct dorsal spots; two distinct silvery spots at end of 

 cell; all these spots are raised above the surface, but differ entirely from the 

 scale-tufts of Homosetia proper. Along the anterior part of the dorsal cilia, the 

 wing is more distinctly silvery white; costal cilia dark brown, dorsal portion 

 whitish, with a median dividing line, and another towards the free margin, 

 basal portion more brown, the marginal spots extend into the cilia. Hindwings 

 pale brassy brown; cilia fuscous. Abdomen brown, tinged with silvery; anal 



