DORCUS. 136 



cJ. Length (with mandibles), 18-20 mm, ; (without mandibles) 

 17-18 mm. : hreridth, 7 nmi. 



Bhutan : Maria Basti. 



Type, in the Oberthur collection ; co-tyi)o in the British 

 Museum. 



The peculiar features of this species are in many respects 

 similar to those of D. clpgans and it is probable that the 

 known specimens, consisting only of males, are not of full 

 development and that larger examjjlcs will be found to have 

 the mandibles, as in D. elegaiis, very long for an insect of such 

 small size. 



64. Dorcus elegans. (Plate XI, fig. 20.) 



Clddognathus elegans Parry,* Proc. Ent. Soc. 1863, p. 110 ; Truns. 



Ent. Soc. 1864, p. 27, pi. 8, fig. 3. 

 Digotiophorus AtkirinSoni Wat.,* Ann. Mag. Nat. Hist. (6) xvi, 1895, 



p. 157. 

 Hemisodorcus elegans Nagel, Deutsche Ent. Zeitschr. 1928, p. 277. 



(^. Bright reddish-yellow, with the tips of the mandibles, 

 the elytral suture, the knees, tarsi and antennae black, the 

 surface rather dull, l)ut with the scutellum and eh'tral suture 

 glossy. Very narrowly elongate, with slender legs. The 

 head is long, very finely coriaceous and opaque, flat above, 

 widest across the eyes, which are very small and not prominent, 

 and gradually narrowed behind them. The front angles 

 are very blunt, the front margin vertical, with a sharp arcuate 

 ridge above. The dypeal process is very short and transverse, 

 separated by a fine suture from the front. The antennal 

 s(^ape is flattened, extremely thin and very slender at the 

 base, the three joints of the club arc very short and the seventh 

 joint is not ])rodu(ed. The pronotinn is also very finely coria- 

 ceous and dull but h-ss so in the middle than at the sides. The 

 front angles are produced but rather blunt, the lateral margins 

 are gently sirmate in front, leaving a blunt projection beliind, 

 in front of the spiniform lateral angle, and sinuate from the 

 latter to the hind angle, which is well marked but blunt. The 

 elytra are rather flat and produced to a point behind, coriaceous 

 and opaque except close to the suture, where they are very 

 smooth and shining. The prosternal process is strongly 

 compressed and rather sharply pointed. The lower surface 

 is very smooth. The front tibia is very slender, rather feebly 

 bifurcate at the extremity, with a few minute sharj) lateral 

 teeth, close together near the end, and the middle and hind 

 tibiae are without lateral spines. 



Variation of the male. In the ty^e specimen (a very small 

 example) the head and thorax are more transverse than in 

 larger specimens and the mandibles are little longer than the 

 head. They are flat, paraUcl-sided and straight at the base, 



