Mr. Sprnce’s Monograph of the Genus Choleva. — 143 
Truncus. Thorax quadrato-transversus longitudine tertiä parte latior, anticé fer& 
dimidio angustior quàm posticé, basi rectior quàm in precedente truncatus, ex- 
 cisionibus levioribus. — Coleoptra thorace plus dupló longiora et in medio dimidio 
latiora, pone medium latissima, obsoletissimé striata, striis sub lente a basi ad. 
apicem excurrentibus. 
Var. 8. flavo-testacea tota; an nuper e nymphá declarata? 
The antenne of this and the preceding are of a conformation 
intermediate between that of the antenn® of C. oblonga and 
agilis, and of the remaining species of this family ; the fifth and 
sixth joints not being so distinctly shorter than the third and 
fourth as in the next two species; the eighth joint not so evi- 
dently less than the ninth, and the club of the antennz not so di- 
stinctly formed. I have not seen the male of this insect. 
I have little hesitation in quoting Paykull's Catops sericeus as 
synonymous with this species, although it has generally been re- 
ferred to the next. His description for the most part accords 
much better with this than with that, or indeed with any other 
of the genus. His omission to notice the small eighth joint 
of the antenne, may be easily accounted for in describing this. 
species, in which that part is not much more distinctly less than 
in C. oblonga, where also he has overlooked it. The thorax, 
though contracted just at the base as in all the rest of this section, 
is yet, as he describes it, in this species, nearly twice as wide 
there as at the apex, which is by no means the case in the next. 
But the characters in his description which most indisputably fix 
the identity of the two insects are those given of the elytra— 
“ antice valdé convexa, gibba, latitudine viz dimidio longiora." These 
` will suit no other species, but are, if we refer the convexity to 
the middle rather than the base of the elytra, very applicable to. 
this. The only incongruity in his description is the obscure tes- 
taceous colour attributed to the elytra, which in my insect are 
of 
