PHEMONE TRIANGULIFER. 2G1 



NOTE XXII. 

 A NEW LONGICORN BEETLE FROM BORNEO 



DESCKIllED HY 



C. RITSEMA Cz. 



Phemone triangulifer, n. sp. 9' 



Resembling, in general appearance, Phemone cordiger 

 Rits. ^) from Sumatra, but easily distinguished by the 

 different arrangement of the white lines on the elytra. 



Length 12,5 mm. — Black, subshining, covered with a 

 very delicate pile which is dark on the upper surface of 

 the insect, bright grey, however, on the undersurface 

 and legs. 



The face and cheeks are covered with a dirty grey 

 pubescence, which becomes darker towards the vertex; a 

 fine smooth line runs from the lower margin of the face 

 down to the front margin of the thorax. The antennae are 

 somewhat shorter than the body; the four basal joints are 

 distinctly fringed beneath with black hairs; the scape is 

 greyish above, black beneath, the S^'l joint whitish, sprinkled 

 with black; the 4*^ joint, which is slightly swollen and 

 contrasts with the adjacent joints, is black; the 5tli — lUh 

 joints are of a rufous colour; the 5th and 6th joints are 

 covered with a greyish pile changing into black towards 

 the tip. The scape is as long as the 2°^ and Sr*! joints 

 together, the 4th joint is distinctly shorter than the S^d 

 but as long as the 5thj the succeeding joints almost 

 inconspicuously decreasing in length. 



1) Notes Leyd. Mus. Vol. XII (1890), p. 137. 



Notes from the Leyden M.useuixi, Vol. XXIX. 



