CALINAGA.— CETIIOSIA. 119 
this respect with Sikkim specimens of C. budJ/ia, IMoore*. Specimens of 
this form from other localities have the whitish discal markings suffused 
witli fuliginous. 
The otlicr form of C. davidis, which is common at Chang-j-ang, Central 
China, wlicre it is tlie sole representative of the species, but also occurs 
sparingly in Western China, is greyish with the whitish markings well defined ; 
the streaks and spots are often confluent, giving the appearance of a whitish 
insect with greyish marginal border and blackisli venation. 
lu both forms the female has the outer margin of all the wings rounder 
than in the male, but agrees with that sex in colour and markings. 
Oberthiir states that his figure of C. davidis was taken fi-om a very worn 
example ; but if the darker portions of the mugs were a shade heavier in 
tone the figure would then very well represent the form occurring in Western 
China, to which I have referred above. 
Genus CETHOSIA. 
Cethosia, Fabricius, Illiger Magazin, vi. ^. 280 (1807); Doubleday, Gen. Diurn. Lep. i. 
p. 130 (1848) ; de Niceville, Butt. Ind. ii. p. 31 (1886). 
" Head rather narrow, clothed with hair. 
" Eyes oval, prominent. 
" Palpi slightly divergent, ascending, rising considerably above the forehead, clothed with 
appressed scales ; the first joint stout, curved ; second joint more than five times the length 
of the first, much swollen beyond the middle, smaller towards the apex, which is obliquely 
truncate, set in front with long erect setoe ; third joint slender, elongate, oval, about equal 
in length to the first. 
"Antenna about three fourths the length of the body, gradually clavate : the club slender, 
rather pointed, grooved below. 
"TnoBAX oval, not robust; the prothorax small, but distinct. 
" Fore wlnrj triangular ; the costal margin and apex slightly rounded ; outer margin sinuate- 
dentate, not two thirds the length of the costa ; inner margin slightly sinuate, rather 
longer than the outer. Costal nervurc stout, not extending much beyond the middle 
of the wing ; subcostal nervure slender, placed very close to the costal, five-branched, its 
first branch thrown off just before the end of the cell ; the first and second, and the third 
and fourth, branches about equally distant from one another ; the third rather nearer to the 
second than to the fourth. Discoidal cell not quite half tho length of the wing. Upper 
discocellular ncrvule almost wanting ; middle discocellular nearly straight, directed slightly 
inwards ; lower discocellular twice the length of the middle one, directed first slightly 
* Cat. Lep. Mus. E. I. C. p. 163, pi. iii. a. fig. 5 (1S57). 
