of neio genera and species of TenehrionidcB. 375 
The Isopus convexus, Moiitrouz., having a scutelhim, 
belongs to a distinct genus, as we have previously indi- 
cated. 
Isopus Blanchardi, Montrouz., 1. c. p. 299 
(sec. Coll. Doue). 
An example of this species obtained from the Coll. Done 
agrees tolerably well with the rather queer description 
given by Montrouzier. The form is somcAvhat briefly 
oval, shining, head and prothorax olive-green, epistoma 
and vertex closely punctured, front coarsely and closely 
rugose-punctured : epistomal suture distinct : prothorax 
somewhat finely and regularly, but not closely, pimc- 
tured, transverse, wider at base than at apex, sides a little 
rounded at the middle, curvedly contracted — most strongly 
at apex — at base and apex, front angles acutely produ«ed 
and outwardly directed : elytra very convex, of a beautiful 
purplish-violet, the suture broadly greenish, feebly rounded 
at the sides to beyond the middle, thence narrowed to the 
apex, which is produced and narrowly rounded; base 
slightly sinuously emarginate, decidedly wider than base of 
prothorax ; on each elytron eight faint — save at the sides — 
punctured striaa, the punctures small and distant at the 
sides and apex, intervals finely and not closely punctured, 
flat except the 7th, 8th and 9th, which are feebly costiform 
(the 7th most distinctly so) from near the apex : prosternal 
process broadly rounded behind : mesosternum short, but 
little prominent, broadly excavated nearly to the base : 
underside and legs shining black, with a greenish tinge ; 
antennfE and palpi pitchy : intercoxal process moderately 
wide, broadly and slightly sinuously rounded at apex. 
Long. 4| lin. ; lat. elytr. 2 lin. 
Hob. — New Caledonia. 
Isopus rohustus, n. sp. 
Very briefly oval, shining, head and prothorax shining 
black, the former coarsely and closely rugose-punctate on 
the front ; the latter very convex, the sides gradually 
narrowing in a slight curve from base to apex; apex 
strongly emarginate, fi^-ont angles acutely produced and 
directed forwards, disk foveate- punctate, sides and apex 
very finely punctured : elytra scarcely Avider at base than 
base of prothorax, sides more or less gradually narrowed 
from the middle, the apex produced and narrowly rounded. 
