240 [December 



slightly produced in eitlier sex. The hind wings vary slightly in all 

 the specimens of either sex that I have before me, and sometimes ( 9 ) 

 the wing is traversed by four undulate, annulate bands. Sometimes 

 ( S ) the thoracic annuli are filled in. Six specimens ('S'SS'S??) 

 examined. Exp. "S , 1.40 to 1.70 inch; 9) --'^O inch. Length of 

 body, S 9 9 , 0.70 to 0.80 inch. 



Ilahitaf.—Cnha, (Poey.) Coll. Ent. Soc. Philad. 



Numher 191, Poci/'s MSS. Catalogue. 



ETJPSEUDOSOMA, nov. gen. 

 % . Primaries large, triangulate, apices produced. Costa very 

 straight; external margin oblique; internal angle rounded, impromi- 

 neut; internal margin short. Costal margin twice as long as internal 

 margin. Nervules straight; discal cell open. First, second and third 

 m. nervules springing very nearly from one point; fourth, not greatly 

 removed from the third. Sub-median nervure bent upwards beyond 

 its middle towards fourth m. nervule, hence the course of this nervure 

 in Eiqjseudosoma is opposed to that in Spilosoma. Secondaries re- 

 duced, somewhat quadrangulate ; costal margin roundedly convex; 

 external margin straight. (The ueuration is undistinguishable, owing 

 to the condition of the specimen.) Body, stout, finely scaled. The 

 squammation is close and short. Head, prominent; eyes, large; epicra- 

 nium broad behind. Prothoracic parts rounded towards the caputal 

 base, well advanced before the insertion of the primaries. Thorax, glo- 

 bose and elevated. Abdomen, stout, closely scaled, exceeding the secon- 

 daries. The anal segment is wanting in the single specimen I have 

 before me. Maxilla) moderate; labial palpi finely scaled, not exceed- 

 ing the "front;" legs rather stout, finely scaled, provided with minute 

 spurs. Antennae long, bi-serrate, tapering to the tips, the serrations 

 short, acute and rather distant. 



This genus is allied to Idalus Walker, with the given characters of 

 which, the single species very nearly agrees, but on comparing my spe- 

 cies with the figures of Idalus admirabilis, I do not believe that, though 

 allied, the two species are congenerical. 



Eupseudosoma niveum, inihi. 



? Charidea? niyea, Herrich-Sehoeffer, Lep. Exot. fig. 279, 9 . (1850-1858.) 



Wings, white. Primaries closely and sparsely covered with a uni- 

 form white squammation ; a very few scattered dark scales. Beneath, 

 beyond basal third, a few scarlet scales on internal margin. Seconda- 

 ries white, sparsely scaled; a few longer scarlet hairs within internal 

 margin. Beneath, white, immaculate. Thoracic region above, whitish, 



