324 Memoii's 0/ the Indian Miisenm. [Vol. Ill, 



/'Outer tubercles sleuder in profile, truncate; ridge joiuiiig 



! iuuer tubercles concave . . . . . . .. M. nicobaricus, pp. 241 & 294. 



j Outer tubercles stouter and distinctly bifid in profile, ridge 



I joining inner tubercles straight . . . . .. M. aiulcimtitensis.pn. ^42&2g4. 



I Inuer tubercles situated distinctly l)eliind anterior margin of 



, ' bead . . . . . . . . . . , 



6 ••../. 



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



Vof head . . . . . . . . . . . . _ q 



/'Grooves of elytra coarsely punctured, lateral grooves almost 

 I as broad as intervening ridges, their punctures very coarse 



7 > indeed .. .. .. .. .. M.crena(ipennis,pp.2^4 & 2^)$. 



j Grooves of elytra less coarsely punctured, lateral grooves 



Vniuch narrower than intervening ridges . . . . . . . . 8. 



( Ridge between inner tubercles convex, evenly curved through- 



) out; anterior angles of pronotum strongly punctured . . .1/. rjlmi lifron-;, pp. 2 [i &2g5. 



J Ridge between inner tubercles straight throughout almost its 



(^ whole length ; anterior angles of pronotum unpmctured .. M. w i(efkoitsin, i)p. 2^^Si2g5. 

 I Third lamella of antennae distinctly shorter than fourth ; 

 ' median groove of pronotum distinct, complete . . . . M. sHkipjrfeclus, p. 296. 



' j Third lamella of antennae not distinctly shorter than fourth ; 

 1 median groove of pronotum obsolete . . . . . . . . 10. 



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

 third when antenna is furled . . . . . . M. webtri, pp. 245 & 296. 



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



I is furled .. .. .. .. .. ,1/. /((///>t')(»/s, pp. 245 & 20b. 



Genus Parapelopides, Zang. 

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



Genus Trapezochilus, Zang. 

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



Genus Gnaphalocnemis, Heller. 



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

 obliquely truncate process; right outer tubercle consisting of 

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



I' with smaller pointed outer and middle processes . . G. simplex, pp. 24S & 2^8. 



Both tubercles consisting of three denticles more or less fused 

 .together, the middle one sometimes obsolete . . . . . . . . 2. 



i Lateral grooves of elytra all narrow, simply punctured . . G. bimneislcn, pp 249 & 258. 



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

 polished flattened band which is marked by a single row of 

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

 roughened line, with which the punctures may be to some 

 I extent confluent 



