POLYZONUS. 



213 



236. Chelidouium gibbicolle, Jl'/n'te (Callicliroma), Cat.CoIeopt. B. 31., 

 lonf/ic. p. 160 (18.j:3). 



Metallic green, the head and prothorax rather glossy, the elytra 

 dull ; body beneath with a fine covering of silvery-grey pubescence ; 

 legs dark blue ; antennae bluish-black, 

 with the fix\st joint subnitid, more or less 

 tinged with green. Head rugulose-punc- 

 tate, marked with a sinuous transverse 

 line between the clypeus and front ; the 

 front with a median line that extends to 

 the vertex. Antennas about equal in 

 length to the body in the $ and a little 

 longer than it in the c5' ; hftli <o tenth 

 joints sharply angulate, or dentate, at the 

 apex on the anterior side. Prothorax 

 striate over the whole of the upper sur- 

 face, the stria) for the most part trans- 

 verse, but curved on and around the two 

 rather distinct tubercles which are placed 

 wide apart on the hind part of the disc ; 

 front margin of the pronotum somewhat 

 rounded in the middle. Scutelium nitid, 

 triangular and concave. Elytra finely 

 and very densely punctulate, for the 

 most part dull ; somewhat nitid alongside 

 the suture and along the outer half of 

 the disc ; narrowly rounded at the apex. 

 First joint of hind tarsi as long as the remaining joints united. 

 Fifth abdominal segment truncate, the sixth emarginate, at the 

 apex in the male; fifth obtusely rounded at the apex in the 

 female. 



Length 22-28 ; hreadth 54-7 mm. 

 Hah. Assam : Sylhet : China. 



Fig. 80. — CheUdonium 

 ijihhicolk, White, c?. X ^. 



Genus POLYZONUS. 



Poh'zouus, Cmteln. Hist. Nat. CoJeopt. 

 Gen. Coleopt. ix, p. 21 (1869). 



ii, p. 438 (1840) ; Lacord. 



Type, P. fasciatus, Fab., a species occurring in China and 

 Siberia. 



ItaiK/e. Indo-Malayan Eegion, China and Siberia. 



Head moderately raised and feebly concave from side to side, 

 between the antennae ; the frout subvertical, not distinctly marked 

 off from the clypeus ; mandibles rather long, obliquely inclined 

 towards one another, slightly incurved at the apex. Antennae 

 only a little longer than tlie body in the d , and almost as long as it 

 in the $ ; third joint much onger than the fourth ; fifth to seventh 

 subequal, eighth to tenth gradually shorter ; eleventh scarcely 



