58 LUCANtD-a;. 



Varialion of the iiiak. In the smallest sjiccimcns the elypcal 

 process is short, rounded in front and without lateral processes, 

 and tlie mandibles are simi)le, with a very feeble internal 

 tooth beyond the middle. In larger specimens there is also 

 a tooth before the tip and the clypeal process is long, pointed 

 and bears a small tubercle on each side. In large examples 

 the mandible has a fairly strong tooth beyond the middle, 

 there is a very small tooth beneath near the base and the 

 extremity is equally bifurcate. The clj^^eal process is sharply 

 pointed and strongly tuberculate on each side. 



(^. Length (with mandibles), 29-52 mm. ; (without mandibles) 

 24-^1 mm. : breadth, 12-17 mm. 



?. Length, 26-33 mm. ; breadth, 11-14 mm. 



SiKKiM : Gopaklhara, Rungbong Valley {H. Stevens). 

 Darjeeling Distr. : Darjeeling, 7000 ft. {F. H. Gravely, 

 April, May); Kurseong, 6000 ft. {E. A. D'Abreu) ; Mangpu 

 {E. T. Atkinson) ; Pedong. 



Type in the Hope Dept., Oxford University Museum ; 

 that of mniszechi in M. Rene Oberthiir's collection. 



13. Lucanus atratus. (Plate IV, figs. 7, 8.) 



Liicaituti atratu-! Hope,* Gray's Zool. Misc. 18.S1, p. 22 ; Hope & 



Westw., Cat. Luc. Col. 1845, p. 10. 

 Pseudolucarms atratus Plan., Le Naturaliste, 1896, i^. 278, figs. 1, 



2, 3 ; Essai Monogr. i, 1898, p. 9, pi. 1, figs. 1, 2, 3. 



Entirely black, rather smooth and sliining, the lower surface 

 clothed with yellow hair, long and close upon the metasternum. 

 8mall, rather short and convex in shape. The pronotum 

 narrow, its front angles j)roduced and fairly sharp, its sides 

 very strongly but bluntlj^ angulate in the middle and feebly 

 concave from there to the hind angles, which are very sharp 

 but not produced. The scutellum distinctly punctured, with 

 scanty hairs. The elytra very glossy in tlie male and dull 

 in the female. The club of the antenna rather long, the 

 seventh joint a little shorter than the three terminal ones. 

 The front tibiae not finely serrate. The presternum very 

 prominent behind and bluntly pointed. 



$. The head is coarsely and closely rugose. The pronotum 

 is entirely punctured, rath-^r strongly and closely at the sides 

 and finely and rather evenly elsewhere. The elytra are dull 

 and finely ])unctured, the punctures rather sparse except at 

 the sides, where tliey are moderately close. The front tibiie 

 are broad, with the terminal fork strong but not very divergent. 



3*. The head is densely coriaceous and opaque and surrounded 

 by a sharj) ridge, whicli is gently curved in front and broadly 

 interrupted in tlie middle beliind, the front of the head vertical 

 and the clypeal process very sliort, with rounded angles. Tlie 

 front angles of the head are veiy l)Iunt, not jnojecting beyond 



