collected by the late M. Mouhot, Sc. 321 
Oncomeea cerulea,* n. sp. 
O. cerulea; capite, thorace, elytrisque punctatis: Subtus 
punctata, primo abdominis segmento ad medium brunneo- 
pubescente. 
Bright shining blue. Head deeply punctured. Thorax very 
much wider behind than in front, at the base twice as broad as 
long ; anterior margin nearly straight, sides very slightly curved ; 
posterior angles acute, slightly enclosing the shoulders of the 
elytra; base slightly lobed, disk punctured, more strongly so on 
the sides. Elytra convex; shoulders slightly elevated, sides 
rounded and converging to the apex; disk punctured, suture ele- 
vated posteriorly, with a stria on each side of it. Beneath punc- 
tured, the first segment of the abdomen with a patch of long 
brown hair in the middle near the posterior margin. 
Length 23 lines; breadth 13. 
Pachbon. 
* This insect may possibly prove to be the Galbella violacea described and 
figured by Professor Westwood in the “ Cabinet of Oriental Entomology,” 
p. 83, pl. xli., as suggested by him at the meeting of the Entomological So- 
ciety at which this paper was read and the insect exhibited. I have not had 
an opportunity of examining the type-specimen of Galbella, which is classed 
by its author amongst the Ewenemide, though Prof. Lacordaire remarks (Gen. 
des Col. iv. 104) that the genus is probably referable to the Throscide. Sub- 
sequent examination however confirms me in the belief that the insect above 
described is a true Buprestid. 
