of nexo genera and species of TenebrionidcB. 373 
prothorax and elytra more strongly margined at the sides ; 
prosternum less compressed in front, the process broadly 
rounded behind, convex throughout. 
The presence of a scutellum, and the convex prosternal 
process will serve at once to distinguish this genus from 
Isopus. 
The Isopus convexus, Montrouzier, will enter into this 
genus ; the species are not luilike, in form and appearance, 
to some of the shining-black species of Cohjmhetes. 
Episopus politus, n. sp. 
Larger than E. convexus, Montr., moderately convex, 
entirely — including legs (except the coxfe, which are dark 
chestnut) and antennae — of a deep shining black : head 
moderately punctured, slightly rugose near the eyes ; pro- 
thorax minutely and sparsely punctvilate, the anterior 
angles somewhat produced, acute, directed forwards : scu- 
tellum very small, triangular, smooth ; elytra feebly seriate- 
jjunctate, obsoletely so at sides and apex ; intervals very 
minutely and sparsely punctulate, the 7th costiform at the 
apex. 
Long. 5^ lin.; lat. elytr. 2f lin. 
Hah. — New Caledonia. One example. 
Distinct from E. convexus by the larger size, more pro- 
minent anterior angles of prothorax, black antennas, and 
smoother intervals of elytra: in E. convexus the intervals — 
or rather the whole ground surface — are subcoriaceous. 
Isopus. 
Montrouz. Ann. France, 1860, p. 299. 
The very brief and unsatisfactory exposition of this 
genus given by Montrouzier (which might well apply to 
a hundred other genera) has deteimined me to give a de- 
tailed description : the possession of typical examples of 
the genus out of the Collection Done enables me to do this, 
Avhilst a further supply of si:)ecimens from New Caledonia 
has also enabled me to add several new species. The 
position of the genus is undoubtedly with the 1st section 
of the Misolampides of Lacordaire,* and it must be placed 
immediately after my genus Episopus, this latter having — 
* Gemminger and V. Harold in their Catalogue ■ have placed it— hap- 
hazard — with the Strongyliides. 
