452 
CHRYSOMELIDiE. 
Hob. “ India or.”; also Java and other Malayan islands. 
In this species the puncturation of the elytra is very fine and 
not very closely arranged, but it is somewhat doubtful whether 
the description above would apply to the specimen on which 
Eabricius founded his type more accurately than to one or other 
of the closely allied species belonging to this puzzling group. 
789. Colasposoma asperatum *, Lej'ev. Cat. Eumolp. 1885, p. 104, 
note 2. 
“ Metallic green, aeneous or bluish-black ; labrum and antennae 
fulvous, terminal joints of 
latter often dark ; legs some- 
times fulvous. 
“ $ . Head and thorax 
densely punctured, the latter 
transversely depressed behind 
the anterior margin, sides 
rounded and margined : tarsi 
fuscous. Elytra transversely 
depressed below the shoulders, 
densely punctured, sides finely 
substrigose ; anterior tibiae di- 
lated at apex. 
“ 7 • Elytra more strongly 
depressed below shoulders, 
sides strongly strigose, a row of 
tubercles placed near the mar- 
gins extending from shoulders 
nearly to apex.” ( Lefevre .) 
Length 4f— 6 mm. 
Bab. Bengal ; Burma ; extending to China. 
The above description as given by Lefevre is scarcely detailed 
enough for certain recognition of the male, while the female is 
better distinguished on account of the rows or row of tubercles 
at the sides of the elytra. In the male of the Indian specimens 
which I refer to this species the thorax is proportionately wide, 
* Colasposoma prosternale, Jac. Ann. Soc. Ent. Belg. xl, 1896, p. 303. 
It is somewhat doubtful whether this species is specifically distinct from 
C. asperatum as far as the male is concerned, as I have not seen the type of the 
latter and the description is too vague to be certain. The female, however (if 
this is rightly referred to the same species, C. prosternale), certainly differs from 
that of C. asperatum in having the sides of the elytra simply rugose not tuber- 
culate. In all other respects the two species are identical. In C. prosternale 
the male organ seems also to differ from that of the allied species, instead 
of its being strongly curved it is more slender and straight, the apex is widely 
opened and contains a kind of hardened tubercle : this is the same in the two 
specimens dissected. 
The species has been obtained at Tharawaddy in Burma, and Mandar in 
Bengal, also in the Andaman Islands ( $ 5 ). 
