AMERICAN MOTHS OF THE SUBFAMILY PHYCITINAE 



225 



of cell. Hind wing pale smoky white; veins faintly 

 outlined. Alar expanse, 22 mm. 



Genitalia distinguished by the very sparse scobina- 

 tion of bursa copulatrix without any trace of a concen- 

 tration of these scobinations into a conspicuous spot. 



Ttpe locality: Oconeque, Carabaya, Peril (Schaus, 

 collector; type in USNM). 



Food plant: Unknown. 



Known only from the female type. 



459. Horaoeosoma ussitimi, new species 

 FiauREs 492, 988 



A small pale gray species, very faintly but appreciably 

 marked; forewing with a narrow, slanting, dark ante- 

 medial line; a very faint, straight, slanting, white, sub- 

 terminal line; two small, obscure discal dots at outer 

 angles of cell. Hind wing smoky white; veins darkly 

 outlined; a narrow dark line along termen; ciha white. 

 The species resembles peregrinum but is smaller and 

 paler. Alar expanse, 13-17 mm. 



Male genitalia distinguished by their narrow, taper- 

 ing haipes and smooth aedeagus. 



Type locality: Canete, Peru (type in USNM, 61376; 

 paratypes in USNM, BM, Paris Mus.). 



Food plant: Unknown. 



Described from male type and seven male and four 

 female paratypes from the type locahty, taken Mar. 2, 

 1943, on the foliage of a composite by E. J. Hambleton. 



460. Homoeosoma acmaeopterum Ragonot 



Figure 493 



Homoeosoma acmaeoptera Ragonot, Nov. Gen., p. 34, 1888; 

 Monograph, pt. 2, p. 255, 1901. 



According to Clarke's notes there are five specimens 

 under this name in the Ragonot Collection at Paris 

 representing what appears to be an assortment of spe- 

 cies. The male type, so labeled by Ragonot and from 

 which the figure in his Monograph (pi. 33, fig. 21) was 

 made, is the only specimen that can definitely be called 

 acmaeopterum. According to Clarke, the Ragonot 

 figure is a fair representation except that the forewing 

 is too short in proportion to its width and its median 

 dark area too strongly contrasted. Alar expanse, 22 

 mm. 



Type locality: Coquimbo, Chile (type in Paris 

 Mus.). 



Food plant: Unknown. 



461. Homoeosoma nimbosellum Ragonot 



Figure 494 



Homoeosoma nimbosella Ragonot, Nouv. Gen., p. 34, 1888; 

 Monograph, pt. 2, p. 255, 1901. 



The type is a male, and not a female, as stated by 

 Ragonot. According to Clarke, the Ragonot figure 

 (Monograph, pi. 30, fig. 22) is somewhat inaccurate, 

 being too dark and with the subterminal line too well 

 defined. Alar expanse, 18 mm. 



Type locality: Valparaiso, Chile (type in Paris 

 Mus.). 



Food plant: Unknown. 



Known only from the type in Paris. 



800329—66 16 



Genus Homoeosoma, Species 462 (unplaced): 

 H. unionellum 



462. Homoeosoma unionellum Ragonot 



Homoeosoma unionella Ragonot, Nouv. Gen., p. 33, 1888. — 

 Hampson, in Ragonot, Monograph, pt. 2, p. 235, 1901. 



A photograph of the type shows a large, narrow- 

 winged, pale specimen (yellowish white, according to 

 description) ^vith costal edge of forewing beyond middle, 

 blackish. A sketch of the female genitalia shows that 

 the species belongs in the first group (Homoeosoma 

 Species 441-454), but more exact placement is impos- 

 sible without a male. Alar expanse, 28 mm. 



Type locality: MUpas, Mexico (type in BM). 



Food plant: Unlcnown. 



Known only from the female type. 



127. Genus Patagonia Ragonot 



Patagonia Ragonot, Monograph, pt. 2, p. xiii, 1901. — Hampson, 

 in Ragonot, Monograph, pt. 2, p. 236, 1901. (Type of 

 genus: Homoeosoma magellanella Ragonot.) 



Characters of the second Homoeosoma species group, 

 except veins 4 and 5 of forewing coimate rather than 

 stalked. 



So far represented only by the single female example 

 of the type species. I suspect that this is an individual, 

 venational aberrant and that when further examples 

 are taken they will show the normal Homoeosoma vena- 

 tion of forewing, 4 and 5 appreciably stalked. If, 

 however, the connate condition of 4-5 were to prove 

 constant and the genitalia of the male show no marked 

 variation from those of the second Homoeosoma group, 

 the venational diflFerence would have a purely specific 

 significance and Patagonia could be retained as a valid 

 genus on the genitaUc characters of the group ; and the 

 species of the group could be referred to it. 



463. Patagonia magellanella (Ragonot) 



Figure 993 



Homoeosoma magellanella Ragonot, Nouv. Gen., p. 35, 1888. 

 Patagonia magellanella (Ragonot), Monograph, pt. 2, p. 226, 

 1901. 



According to Clarke's notes, the figiu-e of the type in 

 Ragonot's Monograph (pi. 33, fig. 25) is faulty in that 

 the forewing is too broad, the whitish costal streak not 

 extensive or white enough, the subterminal striations 

 too much accented, and the wing generally too dark. 

 However, the pattern should make specimens from the 

 type locahty easily identifiable. Alar expanse, 19 mm. 



Type locality: Punta Arenas, Straits of Magellan, 

 Chile (type in Paris Mus.). 



Food plant: Unknown. 



128. Rotruda, new genus 



Type of genus: Homoeosoma mucidellum Ragonot. 



Tongue, antenna, palpi, venation, and habitus as in 

 Homoeosoma. Male genitalia with a comb of strong 

 spines along side of aedeagus. Female genitalia with 



