544 EHOPALOCERA. 



TIGASIS, gen. nov. 



The Costa Eican insect placed here is allied to Mucia, Perimeles, and other branded 

 forms nearly related to Cobalus. It differs, however, from all these, not only in the 

 form of the brand in the male, but also in the structure of the genitalia, and the 

 species must at present be placed in a genus by itself. The wings and body are of a 

 uniform dark fuscous colour, as in so many other Tropical-American Pamphilinae. 



The antennae are more than half the length of the costa, and have a rather stout club, 

 terminating in a long crook. (The palpi are broken off, but the third joint is probably 

 short.) The primaries are moderately long, somewhat pointed at the tip, and slightly 

 arched on the costa at the base ; the cell is much less than two-thirds the length of 

 the costa; the discocellulars are oblique, the upper one about three times the length 

 of the lower ; the lower radial is strongly depressed at the base ; the first branch arises 

 from a little before the middle of the median nervure, the second not far from the 

 lower angle of the cell. The secondaries are slightly produced at the anal angle ; the 

 discocellulars are faint. The body is robust. The hind tibiae have two pairs of spurs. 

 The primaries of the male have a conspicuous, curved, oblique brand, extending from 

 the base of the second median branch to the middle of the submedian nervure, crossing 

 the first median branch far from its point of origin, and interrupted below it. 



1. Tigasis zalates, sp. n. (Tab. XCIX. figg. 4, 5, s .) 



Alis fuscis, unicoloribus, stigmate obscuriore : subtus dilutioribus et forsan rufescentioribus, anticis margine 



interiors apicem versus pallidioribus. 

 $ ignota. 



Hab. Costa Eica, Cache {Rogers). 



One specimen only has been received. For the genitalia, see Tab. XCIX. fig. 5. 



EUTYCHIDE, gen. nov. 



We take as the type of this genus Hesperia physcella, Hew., and associate with 

 it several other Tropical-American species. It differs from Cobalus in having a very 

 conspicuous brand on the primaries in the male, this being divided into three separate 

 portions : (1) an elongate >-shaped piece at the junction of the second median segment 

 with the first median branch ; (2) a longitudinal streak below it ; (3) a similar streak 

 just above the submedian nervure. In addition to Hesperia physcella, which is confined 

 to South America, Eutychide includes H. midia, Hew., H. achelous, Plotz, Pamphila 

 asema, Mab., Cobalus cingulicornis, H.-S., and others. Watson places H. physcella 

 under Cobalus, though he states that there are no secondary sexual characters on the 

 wings of the male. 



The antennae are about half the length of the costa, and have an elongate club 



