194 IJTCANTD^. 



$. Tlic l)la(k siitural stripe is broad, dilating a little at the 

 base and abruptly narrowing to a point at the extremity. The 

 had is opa(|ue, rugosely punctured in front and rather finely 

 behind, with the canthus rather shar])ly produced outwards. 

 The pronotum is smooth and finely punctured in the middle and 

 densely granular at the sides. The front angles are very blunt 

 and the lateral and hind angles not very sharp. The elytra are 

 verj^ smooth and shining. The prostcrnum forms a fairly 

 sharp horizontal process. The front iilna is broad and armed 

 with three or four lateral teeth 



cJ. The black sutural stripe is very narrow posteriorly, but 

 forms a small, rather irregular triangle in the basal part. The 

 head is densely granular and has an angular projection behind 

 the eye on each side. The pronotum is feebly coriaceous and 

 shining in the middle, densely granular at the sides and coarsely 

 rugose near the outer margins. The front angles are not very 

 shai'j), the lateral and posterior angles acute but not sjiiniform. 

 The elytra are very smooth and shining and rather long and 

 narrow. The front tihia is very slender and armed only with 

 one or two minute lateral spines. The prosternum forms a 

 sharp dowiiward-directed conical process. 



Variation of the male. — Inco7istant phase. In small males 

 the postocular process is feeble, the head is strongly emarginate 

 in front and the short mandibles are in close contact and very 

 ir-regularly serrate internally. In the largest representatives 

 of this phase that I have seen, the head is long, the postocular 

 processes are acute and the mandibles are moderately long 

 and very asymmetrical, the right having two strong internal 

 teeth and the left one only placed at a point between those of 

 the opposite mandible. 



Constant phase. The head is very large and its front margin 

 forms a strongly elevated straight ridge. The mandibles are 

 extremel}^ long, slender and symmetrical. Each has a small 

 shar]} tooth near tlie base, a very strong downward-directed 

 tootli placed near the middle and another intermediate in size 

 and position. The tij) is forked and there are two very small 

 teeth between the bianclies of tlu^ fork. 



^. Length (with mandibles), 50-9;! nnn ; (without man- 

 dibles) 44-69 mm. : breadth, 20-29 mm. 

 $. Length, 42-51 mm. ; breadth, 20-23 mm. 

 S. India : Travancore {R. S. Imray) ; Nilgiri Hills 

 {H. L. Andre we s) ; Anaimalai Hills. 



Type in the Hojx' l)e])artnient, Oxford University Museum. 

 Tliis species rather closely resembles C. delesserti, but the 

 elytra are longer and the black sutural stripe is narrower at 

 the base, not extending to the slioulders, not triangular 

 in shape in the female and forming only a very small tri- 

 angle in front in the male. The elytral epipleurae, dark in 



