COLOBORHOMBUS AURICOMUS. 247 



NOTE XLIII. 

 THREE NEW MALAYAN LONGICORN COLEOPTERA. 



DESCRIBED BY 



C. RITSEMA Cz. 



Coloho rhombus auricomus^ sp. n. Q. 



Length about 33 mm. — The whole insect , with the 

 exception , however , of the 2nd and succeeding abdominal 

 segments , shows , under certain lights , a beautiful golden 

 lustre, owing to a fine golden pubescence which is longer 

 and more erect on the prothorax; on the first ventral 

 segment this pubescence is, in places, silvery, on the 

 2nd and following segments it is black. 



The head with palpi and antennae , the legs , the wing- 

 cases and the wings are ochreous ; the head with an 

 impressed, mesial, dark line, which extends from the centre 

 of the face up to the prothorax ; the throat , a spot behind 

 each eye, and the tip of the mandibles black, the antennae 

 slightly infuscate towards the end. 



The prothorax blackish , with ill-defined brown spots 

 along the flanks which have a slight protuberance about 

 the middle; the disk with four slight rounded elevations. 

 The meso- and metasternum black , brownish in the middle, 

 and with faint blue tinges. The scutellum dark coloured 

 and of an elongate triangular shape. 



The elytra reach somewhat beyond the posterior coxae, 

 their outer margin straight, their inner one strongly sinuate 

 which makes them widely gaping towards the apices which 

 are sharply pointed. 



Notes from the Leyden Museum , "Vol. XII. 



