324 Memoirs of the Indian Museum. 



/^Outer tubercles slender in profile, truncate; ridge joining 



j inner tubercles concave , . 



\ Outer tubercles stouter and distinctly bifid in profile , ridge 



I joining inner tubercles straight ., 



( Inner tubercles situated distinctly behind anterior margin of 



) head 



i Inner tubercles situated on (or vertically above) anterior margin 



V of head 



[Grooves of elytra coarsely punctured, lateral grooves almost 

 as broad as intervening ridges, their punctures very coarse 

 7 \ indeed 



Grooves of elytra less coarsely punctured, lateral grooves 



\much narrower than intervening ridges 



/Ridge between inner tubercles convex, evenly curved through- 



) out; anterior angles of pronotum strongly punctured 



j Ridge between inner tubercles straight throughout almost its 



(^ whole length; anterior angles of pronotum unpuactured 



/ Third lamella of antennae distinctly shorter than fourth ; 



I median groove of pronotum distinct, complete . . 

 ^ ] Third lamella of antennae not distinctly shorter than fourth ; 



I median groove of pronotum obsolete 



/ Tip of second lamella not reaching line joining tips of first and 



j third when antenna is furled 



\ Tips of all six lamellae arranged in a straight line when antenna 



I is furled 



[Vol.. Ill, 



M. nicobaricus , pp. 241 & 294. 

 M. a ndamanensis, -pp. 242&294. 



7. 



9. 



M.crenatipennis, pp.244 & 295. 

 8. 

 M.yotaniifi'ons, pp. 2^4 &295. 

 M. wxterhousei, pp. 245&295. 

 M. sulciparfectiis, p. 296. 



10. 

 M. weberi, pp. 245 & 296. 

 M. latipennis, pp. 245 & 2q6. 



Genus Parapelopides, Zang. 

 Only one species, P. symmetricus , pp. 246 and 297. 



Genus Trapezochilus, Zang. 

 Only one species, T. dorsalis, pp. 247 and 297. 



Genus Gnaphalocnemis, Heller. 



j Left outer tubercle consisting of a single, somewhat slender, 



obliquely truncate process; right outer tubercle consisting of 



j a similar but broader and slightly bifid inner process, together 



Iwith smaller pointed outer and middle processes 

 Both tubercles consisting of three denticles more or less fused 

 , together, the middle one sometimes obsolete 

 Lateral grooves of elytra all narrow, simply punctured 

 Grooves 5-7 of elytra more or less broad; each containing a 

 polished flattened band which is marked by a single row of 

 punctures, and defined on either side by a more less distinct 

 roughened line, with which the punctures may be to some 

 extent confluent 



G. simplex, pp. 248 ^ 



G. bur meisten, pp. 249 & 298. 



