CTENOPTILTJM.— HESPERIA. 



575 



oblique to anal angle and slightly concave ; anal angle rounded ; inner margin nearly 

 straight; costal uervure curved, reaching the apex of the wing; first subcostal nerviile 

 originating long before the apex of the discoidal cell; discocellular nervules of equal length, 

 almost straight, slightly outwardly oblique ; discoidal nervule fine but distinct ; second 

 median nervule given off close to the lower end of the cell ; first median arising nearer to 

 lower end of tlie coll than to the base of the wing; aubmedian and internal ncrvure almost 

 straight. Antenna) about half as long as the costa of fore wing, with a well-formed 

 club; thorax rather stout; abdomen rather slender, not quite reaching to anal angle of 

 hind wing. 



" Male with no secondary sexual characters on the wings, but with a dense tuft of hairs 

 attached to the anterior end of the tibia of the hind legs, the hairs extending to the apex 

 of the first joint of the tarsus. Female like the male, except that the wings are rather 

 longer and broader. 



" Type ' AchJi/odes' vasava, Moore." (cZe JS^ictville, I. c.) 



Ctenoptilum vasava. (Plate XLI. fig. 13, s .) 



Achhjodes vasava, Moore, Cat. Lep. Mus. E. I. C. i. p. 252 (1857) ; Proc. Zool. Soc. 



Lond. 18r.5, p. 786. 

 Aniigonus vasara, Elwes, Trans. Ent, Soc. Lond. 1888, p. 458. 



" Upperside dull ferruginous, palest on the hind wing : fore wing slightly suffused with blackish 

 along the posterior margin, an irregular series of various shaped semitransparent spots 

 disposed across the disk, with an exterior blackish transverse streak ; hind wing with the 

 base suffused with blackish ; a subbasal agglomerated series of irregular-shaped semi- 

 transparent spots. Underside paler, marked as above, but without the transverse black outer 

 streak on the fore wing. Palpi and body beneath whitish. Legs ferruginous. 



" Expanse li inch." {3Ioore, I. c.) 



I met with this insect at Ningpo in April, and Pratt obtained it in May 

 at Kiukiang. Both Pratt and Kiicheldorff failed to meet with it in any 

 other locality in China that they visited. 



The Chinese specimens are larger than those from Sikkim and have the 

 subhyaline spots better developed, but do not differ from them in any other 

 respect. The sexes are alike in colour and pattern. 



Elwes says that in Sikkim C. vasava is common in April and May up to 

 about 3000 feet. 



Genus HESPERIA. 



Hesperia, Fabricius, Ent. Syst. iii. vol. i. p. 258 (1793) ; Watson, Proc. Zool. Soc. Lond. 



1893, p. 64. Type, mahcE, Linn. 

 Pyrgus, Hiibner, Verz. p. 109 (1816). Type, syrichtus, Fabr. 

 Scelothrix, Rambur, Cat. Lep. Andal. i. p. 63 (1858). Type, carthami, Hiibn. 

 Syrichtus, Boisduval, Icones, p. 230 (1832-33). Name sinks, being derived from species 



in genus. 



4g 2 



