JAVANESE BBENTHIDAE. 53 



Hab. Toegoe (Western Java). — Leyden Museum. 



Head elongate, moderately narrower at the base than 

 behind the eyes , convex above , with some hair-bearing 

 punctures scattered at the sides and near the base. Rostrum 

 very slightly longer than the head : metarostrum hardly 

 attenuate anteriorly , prorostrum enlarged towards the tip, 

 scarcely emarginate in the middle, above deplanate, smooth. 

 Antennae compressed, with the joints 3 — 5 almost moni- 

 liform, the ^^'^ — 8*^ broader than long with the sides un- 

 equal in length , the 9th and 10^^ larger, like the preceding 

 ones obliquely cut anteriorly, the apical joint is shorter 

 than the two precediug taken together and acuminate. 



Prothorax equalling in length the head and rostrum taken 

 together, the sides of the posterior half are slightly curved , 

 those of the cone are regularly oblique, the vertex is 

 subacuminate and obliquely sloping on the apical margin; 

 the prothorax above is scattered with fine punctures bearing 

 long hairs. 



Elytra elongate, slightly shorter than the head and 

 prothorax together, with the shoulders moderately callous 

 and the sides parallel till the apical third; striate above 

 with the dorsal striae almost impuuctate, the sides are 

 striato-punctate , the interstices broader than the striae, 

 depressed , very obsoletely punctured and hairy. 



Anterior tibiae with the inner edge enlarged and curved 

 near the apex, penicillate ; hind tarsi elongate, moderately 

 robust and punctured, the metatarsus is slightly shorter 

 than twice the following joint. Metasternum and base of 

 the abdomen convex , almost smooth. 



C. longulus is the first species of this genus taken in Java ; 

 it belongs to the group of C. Eichhorni Kirsch and C. 

 signipes Lewis from which it is easy to recognize by the 

 characters of the head, prothorax and elytra above indicated. 



Jonthocerus angulaticeps , n. sp. 

 Niger, opacus , capite , rostro , antennis , elytrorum humeris 



Notes from, the Leyden ÜMuseum, Vol. XX. 



