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UNITED STATES NATIONAL MUSEUM BULLETEST 2 07 



Genus Homoeosoma, Species 454: H. discrebile 



[Male with apical process of gnathos broadly triangulate, anellus 

 U-shaped, eighth abdominal segment with a pair of ventrolateral 

 scale tufts; female with signum, ovipositor lobes unsclerotized.] 



454. Homoeosoma discrebile, new species 

 Figures 489, 986 



! White with a very faint cream tint and with three 

 trongly contrasted brown markiags on forewing, a 

 transverse slanting antemedial band, a somewhat 

 narrower but equally distinct subterminal band and a 

 large discal spot formed by the fusion of the two dots 

 at outer angles of cell. Hind wings white; veins not 

 outlined by dark shading. Alar expanse, 15-17 mm. 



Male genitalia similar to those of electellum ; vinculum 

 with produced dorsolateral arms. Signum of female 

 large, situated well back of the anterior end of bursa. 



Type locality: "S. E. Brazil" (F. D. Jones, "1920- 

 303"; type in BM; paratypes in BM and USNM, 

 61374). 



Food plant: Unknown. 



Described from male type and three female paratypes 

 from the type locality, and one female paratype from 

 Castro, Parand, BrazU. 



An easily recognized species. 



Genus Homoeosoma, Species 455-461: H. pere- 

 grinum to H. nimbosellum 



[Male with apical process of gnathos considerably smaller and 

 tear-shaped, anellus semitubular; female without signum, ovi- 

 postor lobes sclerotized.] 



455. Homoeosoma peregrinum, new species 

 Figures 490, 987 



Forewing very narrow in the male (8 by 1% mm.); m 

 female somewhat broader. Color brown, evenly pep- 

 pered with whitish scales, making the general color 

 grayish fuscous; markings obscure, only the faintest 

 indication of a narrow antemedial dark line and the 

 discal spot at end of cell. Hind wing of a very pale 

 smoky hue with darkened veins and a fuscous line along 

 termen. Alar expanse, 15-17 mm. 



Male genitalia chiefly distinguished from those of 

 other species in the group (except assitum) by the very 

 small, semicircular sclerotized area of penis (assitum is 

 distinguished by its smooth aedeagus and slenderer, 

 more evenly tapering harpes); aedeagus in peregrinum 

 finely scobinate at apex. The structural differences 

 among the species of this group are slight and hardly of 

 specific value. In the female the amount and extent 

 of scobination of the bursa varies somewhat from species 

 to species, but almost as much from specimen to speci- 

 men. These scobinations (except in oconeguensis) are 

 more concentrated in a single circular area where they 

 have the appearance of a weak signum, which they are 

 not. 



Type locality: Carmel, Calif, (type in USNM, 61375; 

 paratypes in USNM and Lange Coll.). 



Food plant: Anaphalis margaritosa. 



Described from male type and three male and two 

 female paratypes from the type locality, reared by 

 W. H. Lange (Mar. 4, 1938, and Mar. 25, 1939); and 

 one male paratype from Juan Vinas, Costa Rica (May). 



H. peregrinum is the only species of the group known 

 from the United States, and since it also occurs in Costa 

 Rica, the natural assumption is that it is a wanderer 

 from tropical America. It may be the species that 

 Hampson misidentified with his Old World ephestidiella 

 (in Ragonot, Monograph, pt. 2, p. 256, 1901). The 

 latter belongs to quite a different species group which is 

 not found in the New World. 



456. Homoeosoma vepallidum, new species 



Figures 491, 991, 992 



Pale brownish fuscous dusted with white, giving the 

 insect a sordid whitish tint; antemedial markings of 

 forewing reduced to a dark spot extending from inner 

 margin to vein lb; discal dots at outer angles of cell 

 present but obscure; subterminal line obscure, slanting, 

 narrow, white, and margined inwardly by a few very 

 faint, dark spots; a faint but distinct white subcostal 

 streak. Hind wing smoky white, veins faintly dark- 

 lined. Alar expanse, 18-20 mm. 



Genitalia without outstanding specific characters. 



Type locality: "VUla Ana, F. C. S. F.," Argentina 

 (type and paratype in BM). 



Food plant: Unknown. 



Described from male type and female paratype from 

 the type locality, Nov. 29, 1923, R. J. Hayward. A 

 female from the Cornell University Collection, taken in 

 the Sierra de Cdrdoba, Argentina, Mar. 9, 1920, is not 

 included among the types because it is paler in color 

 and has a larger bursa copulatrix (fig. 992) than the 

 paratype from Villa Ana, but it is xmdoubtedly the 

 same species. 



457. Homoeosoma ditaeniatellum Sagonot 



Figure 990 



Homoeosoma diiaeniatella Ragonot, Nouv. Gen., p. 33, 1888; 

 Monograph, pt. 2, p. 236, 1901. 



According to Clarke's notes this specimen is badly 

 rubbed and stained and the figure and description drawn 

 from it consequently somewhat misleading. The species m 

 is probably considerably more whitish than the type I 

 would seem to indicate. Its identification will have to * 

 wait upon more material from the type locality. Alar 

 expanse, 18 mm. 



Type locality: Quillota, Chile (Paulson, 1887; type 

 in Paris Mus.). 



Known only from the female type. 



458. Homoeosoma oconequensis (Dyar), new combination 



Figure 989 



Eucampyla oconequensis Dyar, Ins. Insc. Menstr., vol. 7, p. 60, 

 1919. 



A pale fuscous gray species almost unmarked; the 

 faintest indication of a narrow, transverse, dark ante- 

 medial fine and a dark discal dot at lower outer angle 



