204 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Subfamily CRAMBIN^. 



Genus EOREUMA, new. 



Labial palpi porrect, extending about three times length of head, 

 thickly clothed with hair; maxillary palpi triangularly scaled; tongue 

 small; frons rounded; antennae of male thickened and flattened. Fore 

 wing with apex somewhat produced; vein 3 from before angle of cell; 

 4, 5 separate; 6 from below upper angle of cell; 7 from angle; 8, 9, 10 

 stalked; 1L free and oblique. Hind wing with 3 from before angle of 

 cell; 4, 5 stalked; 6, 7 from upper angle. 



J"ype: Chilo densellus Zell. 



As noted by Dr. Dyar (Proc. Ent. Soc. Wash., xi, 27, 1909), 

 densellus is referred by Sir G. F. Hampson to the genus Plut- 

 ytes, but is retained in the genus Chilo by American authors, 

 while Dr. Dyar lists it under Argyria. From specimens taken 

 by the writer in East River, Connecticut, which correspond 

 to those in the U. S. National Museum collection under den- 

 sellus, it appears that this species does not belong to any of 

 these genera. The venation of the fore wings with veins 8, 

 9, 10 stalked would appear to place it in the genus Erupa, one 

 not hitherto represented in our fauna. Entpa, however, as 

 denned by Sir G. F. Hampson, and as shown by the species 

 which is the type of this genus, has veins 4, 5 of the hind wings 

 well separated, while in the species under consideration 4, 5 

 are stalked. The species now placed under Erupa in the 

 U. S. National Museum collection appear to be composed of 

 two groups a rather broad-winged form in which veins 4, 5 

 of the hind wings are separate, and a narrow-winged form in 

 which veins 4, 5 are stalked. In the latter group there are 

 three species, which have been assigned to Entpa by Sir G. 

 F. Hampson, Erupa roseiceps Hamp. and two other species 

 as yet undescribed. These last three species should therefore 

 be placed with densellus under the genus Eoreuma. 



Crambus auratella Clemens. 



Argyria auratella Clem., Dyar, List. N. A. Lepidoptera, No. 

 4622, 1903. 



This species is listed by Sir G. F. Hampson under the genus 

 Plalyles instead of under Argyrin, which he treats as a sub- 

 genus of Platytes. Although resembling some of the other 

 species of Argyria in general appearance its venation is that 

 of the genus Crambus, to which, as it is now defined, it would 

 appear to be necessary to refer it. Vein 7 of the fore wing is 

 stalked with 8, 9, and veins 11 and 12 anastomose. 



The writer wishes to express his thanks to Dr. Dyar for the 

 assistance he has received from him while studying the 

 material upon which this paper is based. 



Actual date of issue, December 31, 1910. 



