A NEW TERMITOPHILOUS COLEOPTERA. 



485 



tubercles there runs a narrow longitudinal groove downwards. Post- 

 erior part of head also subquadrate, with slightly rounded lateral edges 

 and slightly concave posterior margin (figs. 2, 3). 



Antenna. — Rather long, longer than head and pronotum combined, 

 submoniliform, 11-jointed; ist joint very large, subcylindrical, nearly 

 ii times as long as broad, narrow at base and broadening distally ; 

 2nd joint the smallest of all, orbiculate ; 3rd and 4th joints similar, 

 about as long as broad ; 5th-c)th joints increasing slightly and gradually 

 in breadth and assuming a more and more turbinate form in the 

 more distally situated ones ; 10th joint somewhat narrower than the 

 pieceding one; nth joint equal to the last in breadth, with slightly 

 obliquely truncated tip bearing fine spiny hairs on the surface (fig. 4). 



Labrum. — Slightly arched, a little broader than long, subquadrate, 

 slightly sinuate in front, obtusely rounded in the antero-lateral corners 

 and straight on the sides. The margin bears short hairs, of which 

 those on antero-lateral corners are on the whole the longest (fig. 5). 



Eyes. — Distinctly separated from one another, very narrow, not 

 projecting, black in colour, finely punctured as in other parts of the 

 head but not facetted ; so far as can be seen on the upper side of 

 head, each eye presents a trasversely elongate reniform shape, being 

 broadly emarginateci in front. Seen on the sides of head it is nar- 

 rower, shows slight backward curvature near inferior end (figs. 2, 3). 



Mandibles. — Equal, strong, three-sided, a little longer than broad, 

 reddish brown in colour except the acute incurved tip which is black, 

 upper side slightly convex, outer side concave, lower side much more 

 concave. Inner margin of mandible almost straight with a small 

 notch-like concavity in the middle ; outer margin much convex. At 

 inner base there exists a subquadrate tooth-like process with finely 

 serrate inner edge (figs. 6, 7). 



Pronotum. — Much broader than head, nearly so long as broad, 

 with anterior margin almost straight, antero-lateral margins broadly 

 rounded, postero-lateral margins slightly converging posteriorly, and 



