'24 CORYNODRS BALVI. 



by a (leep transverse groove •, subquadrate , its sides obli- 

 quely cut , surface punctured like the head. Labrum , jaws 

 and palpi black. Antennae of half the length of the 

 body, the six basal joints slender, the 5 terminal ones 

 compressed, broadly dilated, bluish black. Thorax distinctly 

 narrowed in front, the sides greatly deflexed anteriorly, 

 anterior angles produced into an acute point , the latter 

 distinctly thickened ; sides nearly straight near the base , 

 rounded towards the apex , surface closely impressed with 

 larger and smaller punctures , the punctation itself but 

 little deeply impressed and partly obsolete. Scutellum 

 slightly longer than broad, smooth. Elytra broad, a little 

 widened below the middle , impressed with a narrow and 

 rather shallow transverse groove below the base which 

 terminates at the sides below the shoulder in an obsolete 

 tubercle, the latter at the same time being contiguous with 

 the humeral callus ; surface evenly and finely subgeuiinate 

 punctate-striate , the punctures becoming very fine towards 

 the apex; a row of transversely shaped and deep punctu- 

 res runs parallel with the lateral margin. Tibiae not 

 notched, the intermediate pair flexuose. Claws appendi- 

 culate. 



A single specimen from the District of Rawas (Sumatra- 

 Expedition). 



To be separated from its congeners by the entirely vio- 

 laceous blue colour, the obsolete punctuation of the thorax, 

 the fine and even punctures of the elytra and their lateral 

 tubercle, as well as by the absence of any costae near 

 the sides. 



Cori/nodes fraternus , Baly. 



It is very probable , that Mr. Baly's description of this 

 species was drawn from female specimens. The Sumatran 

 collection contains four insects , one male from Mesauw 

 and three females from Soeroelangoen and Koetoer. The 



Notes from the Ijeyden Museum, Vol. VI. 



