361 



ON THE CARENIDES (FAM. CARABIDjE). 



No. IV. 



By Thomas G. Sloane. 



In this paper are included some new species sent to me for 

 description by Mr. C. French, of Melbourne (the types being in 

 his possession); also a synoptic table of the groups of species 

 into which the Genus Carenum may be divided, with some notes 

 on synonymy, &c. 



Genus Laccopterum. 

 Laccopterum humeralis, n.sp. 



Elongate-oval; prothorax lobate, lobe wide and roundly trun- 

 cate; elytra with base deeply emarginate, humeral angles promi- 

 nent, a longitudinal row of three or four large foveiform punctures 

 along middle of each elytron; anterior tibia? tridentate. Black, 

 nitid, with subviolaceous tints at basal fovea? of prothorax and on 

 inflexed margin of elytra. 



Head subquadrate (2-5 x 4 mm.), convex, transversely im- 

 pressed behind frontal spaces, these convex ; frontal sulci deep, 

 parallel; clypeus with median part truncate, intermediate angles 

 short, triangular; eyes not prominent; two supraorbital punctures 

 on each side. Prothorax lightly transverse (3 - 3 x 43 mm.), 

 convex, parallel on sides, widely rounded at posterior angles, 

 strongly sinuate on each side of basal lobe; anterior margin 

 truncate with angles shortly but decidedly advanced ; border 

 reflexed, a little wider behind posterior angles ; marginal 



