DORCUS. 159 



yellowisli hairs. Moderately elongate, with the legs rather 

 stout, the four posterior tibiae each armed with a strong lateral 

 spine. The prosternuni very prominent and bluntly rounded 

 behind. The shoulders of the elytra not sharp and a very 

 short but deep oblicjue impression at the base of each elytron 

 close to the scutellum. The seventh antennal joint feebly 

 produced. 



$. The upper surface is opaque, with the scutellum and the 

 sutural margins of the elytra shining. Tlu^ head bears two 

 small transversely placed tubercles near the middle and the 

 part in front of these is gently hollowed and almost unpunc- 

 tured, while the part behind them is irregularly and rugosely 

 punctured. The outer edge of the mandible is almost straight, 

 the tip acutely produced, and there is a strong blunt internal 

 tooth beneath and a smaller one above. The proiwtum and 

 elytra are entirely ojjaque at tlie sides, but rather less so 

 towards the middle line of the bod}^ and the elytra are densely 

 punctured, except in the anterior dorsal region. The lateral 

 angles of the pronotum are very strongly produced and the 

 sides strongly contracted towards the front and hind angles. 

 The tnentum is rugosely punctured. 



(^. The head, basal part of the mandibles, sides of the pro- 

 notum and extreme outer margms of the elytra are entirely 

 o})aque. The head is flat behind and sloping in front, without 

 sharply defined dividing line, the front angles are sharp, the 

 eyes small and tlie sides of the head strongly convergent behind 

 the eyes. The dypeal process is strongly transverse, rounded 

 in front. The pronotum is finely and densely granular and 

 subopaque dorsally, the front angles are blmitly produced, 

 the sides diverging to well beyond the middle, where there 

 is a very sharply produced angle, and concave and strongly 

 convergent to the rounded hind angles. The elytra are finely 

 coriaceous and rather shining. 



Variation of the male. In small males the mandibles are 

 short and broad, strongly and regularly curved externally, 

 acutely pointed, with an obtuse rudiment of a tooth near the 

 middle of the inner edge. In large males the mandibles are 

 long, the middle part is almost straight, the tooth is small but 

 sharp and placed beyond the middle and another similar tooth 

 appears before the tip, the two teeth connected by a rather 

 sharp ridge. 



^. Length (with mandibles), 32-59 mm. ; (without man- 

 dibles) 27—43 mm. : breadth, 11 -5-17 mm. 



?. Length. 29-40 mm. ; breadth, ll-o-lO mm. 



HiKKiM : Gnatong (July). D.^rjeeling Distr.: Lepcha- 

 jagar, 7090 ft. {J. C. M. Gardner, Sept.). Assam. Upper 

 Burma : Nam Tamai Valley. 3000 ft. (B. Kaulback, .Jul\). 



Type in the Hope Dept., Oxford University Museum. 



