538 EHOPALOCEKA. 



Dr. Staudinger has lent us both the male and female types of this species from 

 Chiriqui, and we have others from Mexico and Guatemala agreeing with them. The 

 female is scarcely separable from a specimen of the same sex sent us by Herr G. Semper 

 under the name of Hesperia pelora, Plotz, from Brazil 2 , but in the absence of the male 

 of the Brazilian insect it is impossible to identify Plotz's species with certainty. 

 Our figures of the insect are taken from Mabille's types. For the genitalia of the male, 

 see Tab. XCVIII. fig. 31. 



2. Cobalopsis dyscritus. (Tab. XCVIII. fig. 33, s .) 



Carystus dyscritus, Mab. Compt. rend. Soc. Ent. Belg. xxxv. p. cxv (1891) \ 



6 . Supra C. eddce similis, quoad colorem, subtus posticis ochraceoribus, partibus genitaliis dissimilibus. 

 2 mari similis, sed anticis macula submediana elongata ocbracea. 



Hob. Mexico, Teapa (If. H. Smith) ; Costa Rica, Cache (Rogers) ; Panama, Chiriqui 

 . (mm. Staudinger). — Colombia, San Juan l ; Guiana ; Amazons ; Peru. 



The male of this species, which we have identified from specimens from the Amazons 

 lent us by Dr. Staudinger, is so like the corresponding sex of C. edda that we should 

 have placed them together without hesitation, had not their genitalia proved to be very 

 different. We have dissected several males from various localities, and as these 

 characters are constant we are compelled to treat the two insects as distinct. We 

 possess eight males of C. dyscritus, one of which is from Costa Rica, and with these 

 we associate a single female from Chiriqui ; this latter differs considerably from the 

 same sex of C. edda, being, indeed, very much like the male. 



For the genitalia of the male, see Tab. XCVIII. fig. 33. 



ONOPHAS, gen. nov. 



Pamphila columbaria, H.-S. (.= P. flossites, Butl.), is one of the numerous Tropical- 

 American forms nearly allied to Colalus, but cannot be included in that genus, as 

 defined by Watson, on account of the brand on the primaries of the male, the brand 

 again being different in form from that of the species of the neighbouring genera. We 

 are therefore compelled to place this insect in a separate genus. 



The antennae are considerably more than half the length of the costa, and have an 

 elongate, stout club, terminating in a long crook. The third joint of the palpi is short 

 and bluntly conical. The primaries are moderately long and somewhat pointed at the 

 tip ; the cell is much less than two-thirds the length of the costa; the discocellulars are 

 oblique, the upper one nearly three times the length of the lower, the latter being 

 shorter than the third median segment ; the lower radial is depressed at the base ; the 

 first branch arises from the middle of the median nervure, the second at some little 

 distance before the lower angle of the cell. The secondaries are produced at the anal 

 angle ; the discocellulars are very faint. The body is robust, The middle tibia? are 



