CTEXOPTILUir.— HESPEEIA. 575 
oblique to anal angle and slightly concave ; anal angle ronndod ; inner margin neatly 
straight ; costal nervure curved, reaching the apex of the wing ; first subcostal nervule 
originating long before the apex of the discoidal cell; discocellnlar 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 the cell than to the base of the wing; submedian and internal nervure almost 
straight. Antennae 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/odi's ' vasciva, Moore." (de SicevUle, I. c.) 
Ctenoptilum vasava. (Plate XLI. fig. 13, d .) 
Achhjodes vasava, Moore, Cat. Lejo. Miis. E. I. C. i. p. 252 (1857) ; Proc. Zool. Soc. 
Lond. 18()5, p. 786. 
AntigoHUS vasava, Elwes, Trans. Ent. Soc. LonJ. 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 1| inch." {Moore, I. c.) 
I met with this insect at Ningpo in April, and Pratt obtained it in May 
at Kinkiang. Both Pratt and Ivricheldorff 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 difi'er 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 HESPEEIA. 
Hesperia, Fabricius, Ent. Syst. iii. vol. i. p. 258 (1793) ; Watson, Proc. Zool. Soc. Lond. 
1893, p. 64. Type, malvce, 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 
