152 LUCANID^. 



shiniiig. Convex and not very elongate, with luodeiately 

 slender legs. The canthus extendmg past the middle of the 

 eye and the sides of the head triangularly j^roduced beliind the 

 eyes. The pronotum short, with the front angles bliuit, the 

 sides gently curved to the lateral angles, which are sharp but 

 inconspicuous, and almost straight to the hind angles, which 

 are ver^' broadly rounded. The shoulders of the elytra sharp. 

 The prosternum vertical behind and a little compressed. 



2. The head is strongly punctured, excejit upon the posterior 

 median j)art and the sides are obliquely curved ui front of the 

 eyes and produced behind them into small blunt triangular 

 processes. The pronotum is finely and sj)aringly punctured m 

 the middle and very strongly and closely at the sides. The 

 elytra are closely and distinctly jjunctured in the middle and 

 strongly and densely at the sides and apices. The sides of the 

 metasternum and abdomen bear scattered punctures and the first 

 and last sternites of the latter are strongly punctured. The 

 front tibia is trilobed at the end. 



^. The head and pronotum are densely minutely granular and 

 opaque, the latter rather less densely in the middle than at the 

 sides. The head is flat above, more or less semicircidarly 

 excised in front, the canthus rather broadly rounded in front of 

 the eye and the cheeks produced behind into strong sharp 

 triangular processes. The clypeal process is narrow and 

 bluntly pomted. The elytra are very finely and closely 

 punctured, but slightly shining upon the inner half, very 

 densely and confluently upon the outer half, base and apex, 

 where they are entirely opaque. The lower surface is granular 

 and opaque. The front tihia is minutely serrate and finely 

 toothed, the terminal fork is not very divergent and the apical 

 spm- is hooked. The middle and hind tibiae bear sharp lateral 

 sjjines. 



Variation of the male. In smaU males the mandibles are 

 slioi't and broad, with the inner edges in contact and serratt' 

 from base to tip but the basal part on a lower level than the 

 rest. In larger specimens the basal part is lengthened and a 

 single strong basal tooth on the lower level is separated by a gap 

 from the serrate edge on the upper level. At a more advanced 

 stage two se])arate teeth appear on the lower level, the serrate 

 upper edge becoming shorter, in the largest sjjecimens the 

 head is very short and broad, the mandibles are only a little 

 longer than the head and the serrate upper edges remain capable 

 of close contact. 



(^. Length (with mandibles), 21-35 mm, ; (without man- 

 dibles) 18-20 mm. : breadth, 8-11 mm. 



9. Length, \'^~2^ mm.; breadth,! •5-[)'r> mm. 



Bhutan. Darjeelino Distr. : Pedong {A . De godins) 

 Bagdogra llauge, Kurscong {IS . C. Chatterjee, June) ; *Mangp 



