122 LUCANtniE, 



of the four posterior tibia' internally, as well as the lower 

 surface of the tarsal joints, bear conspicuous jjads of bright 

 yellow liairs. 



Variation of the wale. In the ordinary form of male the 

 mandibles are of the j)riodont tyi)e, about as long as the head, 

 triangular in shajje and toothed almost fi'om base to tip. In 

 small si^ecimens the outer edge is gently rounded, in larger 

 ones it is straiglit or sliglitly concave and the first two teeth 

 of the inner edge are large and bead-like, with a ga]) between 

 them. ■ There is a ridge u])ou the upper surface and in large 

 specimens this forms a prominent lobe at the base of the 

 mandible. Large males may have another (constant) form 

 of mandible, evenly curved and fairly slender, with a strong 

 erect tooth before the middle of the up])er surface, a rounded 

 basal tooth at the inner edge and two or three small blunt 

 teeth before the extremity, which is bifurcated. I'his |)hase 

 occurs together with the normal one, but is comj)aratively 

 rare. 1 have figured (PI. II, lig. ob) a remarkable specimen 

 in which the two mandibles are of the two different forms. 



^. Length (with mandibles), 22—40 mm. ; (without mandibles) 

 19-33 mm. : breadth, 8-14 mm. 



$. Length, 20-25 mm. ; breadth, 8-10 mm. 



Darjeelixg DisTR. : Mangpu, 5000 ft. (*S'. 11'. Kemp, A])ril, 

 May) ; Vedong {A . Desgodin.'^) ; Pankassari, Kalhnpong (Aug.). 



7\>/pe in the Hope Dept., Oxford Universitj' Museum. 



Tliis species, wrongly described as bulbo-nis in Ho])e and 

 Westwood's Catalogue, Avas renamed parr//i hy Boileau but, 

 since that name had been j^reviously applied to other species 

 of Dorcus, it is necessary to find yet another name for it. 

 _ The ordinary males bear a very close resemblance to those 

 of the true bulbo.sus but the clypeal process, thougli minute, 

 has (juite a different shajjc and the head is a little dilated and 

 not contracted behind the eyes. 



54. Dorcus dentifer. (Plate Xll, fig. (5.) 



Cladognathus dentifer Devr.,* Ann. Soc. Knt. ficlg. i.x, IISG.">, p. 2!), 



pi. "l, fig. 5. 

 Prosopocoelus jxirallelus Did.,* Liic. du (ilobe, 1931, p. 231 (new 



syn.). 



Black, snu)()th and shining beneath and upon the pronotuni 

 and the sutural margins of the elytra, the remainder of flu- 

 elytra densely ])unctured. The lateral edges of the ])ronotum 

 finely s<Mrate, a very deej) front marginal groove exce})t in 

 the middle, and the front angles fairly sharp. The shoulders 

 of the elytra acute. The ])rosternum compressed behind, 

 rectangular and not produced ; the metasternum coarsely 

 punctured at the sides. 



.f (probable). Narrowly elongate. The head is strongly but 



