COGIA. 339 



Cell of the primaries about two-thirds the length of the costa ; second and third 

 subcostal segments longer than the fourth and fifth ; upper discocellular very short, 

 middle and lower discocellulars subequal, in an oblique line to the axis of the wing ; 

 first submedian segment short, less than half the second, about equal to the third ; the 

 discocellulars of the secondaries very faint ; third median segment short, about one-third 

 the second segment. A tuft of hairs arises from the angle between the median and 

 submedian nervures near the base. (Description taken from C. cajeta, H.-S.) 



The four Central- American and Mexican species may be briefly divided as follows : 



Tuft of hairs long ; secondaries rounded. 



Primaries with diaphanous spots cajeta. 



Primaries unspotted eluina. 



Tuft of hairs truncate. 



Secondaries rounded calchas. 



Secondaries slightly elongated hippalus. 



1. Cogia cajeta. (Tab. lxxxi. figg. l, 2, 3 s .) 



Eudamus cajeta, Herr.-Schaff. Prodr. iii. p. 68 (1868) 1 ; Kirby, Cat. Hew. Coll. p. 214 2 . 



Alis ochraceo-fuscis ; anticis ad costam et ad marginem externum saturatioribus, macula in cellula altera supra 

 earn costali, una rami mediaui secundi utrinque (introrsum fusco marginatis) et punctis quatuor subapica- 

 libus semihyalinis, maculis indistinctis infra cellulam et alteris ad angulum analem fuscis ; posticis paullo 

 pallidioribus, fasciis duabus fuscis, una discali, altera cellulari ; plica margini interno parallela cirro ochraceo 

 includente : subtus fere ut supra* anticis area interna pallida. 



$ mari similis, sed posticis plica nulla. 



Hab. Mexico, Jalapa, Paso de San Juan ( W. Schaus), Teapa (H H. Smith). 



There is a specimen in the British Museum of this species bearing Herrich-Schaffer's 

 title E. cajeta, but its origin is not stated 2 . We possess three specimens, and 

 Mr. Schaus has several, all of them from Mexico, which establish it as a member of 

 our fauna. Though a much larger species, it seems strictly congeneric with G. hassan, 

 the type of the genus Cogia. 



The male genitalia have the tegumen notched at the end, the points being blunt ; 

 the scaphium is well developed : the harpes are truncate, the ventral edge turns up 

 rather abruptly and is concave beyond the angle ; there is a notch on the dorsal edge, 

 but no fissure. (See Tab. LXXXI. fig. 3.) 



2. Cogia eluina, sp. n. (Tab. LXXXI. figg. 4, 5.) 



C. cajetce similis, sed alis obscurioribus ; anticis immaculatis, posticis saturatioribus fere unicoloribus, fasciis 

 obsoletis : subtus fere unicoloribus, fasciis omnibus vix indicatis ; cirro abdominali posticarum ochraceo. 



Hab. Mexico, Actopan (G. Mathew), Valladolid in Yucatan (Gaumer) ; Guatemala, 

 Volcan de Santa Maria ( W. B. Bichardson), Motagua Valley, San Geronimo (F. D. G 

 & 0. S.). 



2x2 



