COELOSTERNA ROUYERI. 137 



NOTE VIL 

 A NEW LONGICORN BEETLE FROM SUMATRA 



DESCEIBED BY 



C. RITSEMA Cz. 



Coelosterna Roiiyeri, n, sp. 9- 



LeDgth 38 mm., breadth at the shoulders 14 mm., 

 length of the antennae 37 mm. — Black, covered with a 

 grey pubescence which is wanting on the declivous front 

 portion of the shoulders and which is very delicate on the 

 legs ; the antennae sooty black, the apical third of the 

 elytra narrowly margined laterally with the same colour, 

 the extreme tip of the apical ventral segment likewise black. 



Head subquadrate in front, underlobe of the eyes large, 

 rounded; face between the eyes rather narrow, higher than 

 broad, slightly convex in a longitudinal direction, divided 

 longitudinally by a groove which has the impressed median 

 line at its bottom. Antennary tubers subapproximate; an- 

 tennae slender, as long as the body, the 6 or 7 basal 

 joints thinly fringed beneath ; the nearly impunctate scape 

 is subcylindrical, slightly widened out at the tip on the 

 outside and provided with a sharply defined open cicatrix; 

 the scape is as long as the 4^^ joint which is distinctly 

 shorter than the 3'd; the 5tt to 10*^ joints are subequal 

 in length to each other, the lltt or apical one slightly 

 longer and very acutely pointed. 



Prothorax transverse, provided at the middle of the sides 

 with a strong acute spine, the disk with a few undulate trans- 

 verse wrinkles between which some indistinct punctures oc- 

 cur. Scutellum very broadly rounded at the apex. 



Elytra broad at the base which is straight, faintly nar- 



JVotes from the Lieyden JMuseuin, Vol. XXVllI. 



