TRICHOGOMPHUS. 



283 



253. Trichogomphus mongol. 



Trichooomphus mongol, Arrow,* Trans. Ent. Soc. Lond., 1908, 



p. 347. 

 Trichogomphus martabani, Burin, (nee Guer.), Handh. Ent., v, 



1847, p. 220. 



Shining black, with the lower surface and femora reddish, and 

 scantily clothed with tawny hairs at the sides beneath. The form 

 is that of T. martabani, with which it may be easily confused, but 

 the elytra are almost smooth and impunctate, having only a deeply 

 impressed sutural line upon each and a few large irregular 



Fig. 64. — Trickoffom2)hits mongol. male, natural size, with lateral view of 

 head and thorax (above) and outline of female (below). 



punctures close to the base. There ara usually a few longitudinal 

 impressions or vestigial striae, but these are entirely free from 

 punctures. The apical margins are slightly rugosely punctured. 



S • The armature of the head and tliorax is the same as that of 

 T. martabani, but in well-developed specimens the posterior 

 thoracic horn is more hollowed out in front and its lateral edges 

 are more sharply carinate. The hind angles of the prothorax are 

 more obtuse than in that species. 



Length 33-47 mm. ; breadth 18-25 mm. 



Burma: Kachin Hills (L. Fea); Siam ; Cambodia; Chixa : 

 Hong Kong. 



Type in the British Museum. 



Whereas T. martabani ranges north-westwards from Burma, 

 T. mongol extends eastwards from that centre and is apparently 

 not found in India proper. 



