48 h. de Niceyille — Butterflies from the Indo-Mahyan region. [No, 1, 



Family HESPERIID^. 

 Genus Chaemion, nov. 



Male. Foeewing, triangular, entire ; costa gently arched ; apex 

 rather acute ; outer margin very straight in general direction, slightly 

 convex ; inner mai'gin straight, in length equal to the outer margin ; 

 costal nervure ending opposite the apex of the discoidal cell ; first 

 suhcostal nervule arising nearly twice as far from the second subcostal 

 as that vein does from the third ; foiirtli and fifth subcostals arising 

 close together ; upper disco-cellular nervule stout, long, strongly outwardly 

 oblique ; middle and loiver disco-cellulars thin, gently curved, concave, 

 placed inwardly obliquely, the lower slightly longer than the middle, 

 consequently the loicer discoidal nervule lies nearer to the upper discoidal 

 than to the third median nerviile ; discoidal cell reaching to a little loss 

 than two-thirds the length of the wing* from the base ; second median 

 nervule arising far from the lower end of the cell ; first median arises 

 near the base of the wing, with its base further from the base of the 

 second median than that vein arises from the third ; suhmedian nervure 

 slightly sinuous. HiNDWiNG, entire ; costa much arched at base, then 

 nearly straight ; apex rather acute ; outer margin regularly curved to the 

 abdominal margin, slightly produced at the termination of the second 

 median nervule, between the second median nervule and the anal angle 

 slightly concave ; costal nervure nearly straight, ending at the apex of 

 the wing; first suhcostal nervule arising far before the apex of the cell ; 

 disco-cellular nervules slightly outwardly oblique ; uppter disco-cellular 

 sinuous ; loiver disco-cellular concave, slightly longer than the upper ; 

 discoidal nervule well developed ; second median nervule arising well 

 before the lower end of the cell ; first median arising twice as far from 

 the second, as the second arises from the third ; suhmedian and internal 

 nervures sti*aight, ANTEXXii; with a well-developed club, the thin apical 

 portion of which is directed at right-angles to the shaft. Palpi erect; 

 pressed close to the face, densely pilose, third joint hidden beneath the 

 hairs. Abdomen reaching to the level of the outer margin of the wing. 

 Legs. Foreleg with an epiphysis on the tibia. Hindleg with a long tuft 

 of hairs attached to the tibia at its base, and two pairs of spines towards 

 its apex. Female. Differs from the male in the wings being slightly 

 rounder and fuller, and lacking the tuft of hairs on the hindleg. Type, 

 C. fiadnea, Hewitson. 



* Lieut. E. Y. Watson, in Proc. Zool. Soc. Lond., 1893, pp. 15 and 16, divides 

 his subfamily neiperiinx into Sections A and B by the discoidal cell of the forewing 

 being more or less than two-thirds the length of the costa. This is a measurement 

 which I End very difficult to verify. 



