DORCUS. 143 



elytra are long and narrow, broadest at the base, where they are 

 much narrower tlian the bas(> of the pronotuin, and tapcrinif to 

 the extremity. They are finely and closely punctured, the 

 jiunctures becoming gradually stronger and closer towards the 

 outer margins ; eacli has a juxta-sutural Une and three paired 

 lines of punctures, the latter not reaching the extremity. The 

 shoulders are acute. The legs are not very slender. The front 

 tibia is rather feebly forked at the tip and the outer edge is 

 very minutely serrate, with two or three very small teeth ; the 

 middle and hind tibijp are closely fringed at the inner edge and 

 without lateral spines. The tarsi have long hairy fringes. 



Variation of the male. A small specimen in M. Oberthiir's 

 collection has the head and prothorax only moderately broad, 

 the sides of the former and most of the surface of the latter, 

 finely but distinctl}' punctured and the sides of the i)rothorax 

 very slightly converging towards the front. The mandible is 

 short, straight to just beyond the middle and uniformly curved 

 from there to the tip. The basal half has an abrupt, rather 

 rectangular, dilatation internally. In well-developed specimens 

 head and thorax are very broad, the latter not at all narrowed 

 in front and strongly lobed at the front angles. The punctures 

 are very fine and inconspicuous. The mandible is abruptly 

 bent in the middle, the basal and apical halves almost straight 

 and at right angles to each other, the basal half with a tri- 

 angular dilatation internally, produced to a sharj) point 



5. UnknoAvn to me. Both sexes are figured by Planet. 



Q. Length (with mandibles), 16-2.3 mm. ; (without mandi- 

 bles) 14-18 "5 mm. : breadth, 0-9 mm. 



Assam : Khasi Hills, Shillong. 



Types. That of barbarus Jord. in M. Oberthiir's collection ; 

 location of that oigroiilti uncertain. 



Although the well-developed males of Dorcus groidti which 

 have been figured both by Planet and Jordan ])resent a marked 

 difference from the males of D. humilis, the two species are cer- 

 tainly closely related. D. (jronlti, however, is lighter in colour 

 and the male, like; the female, has clearly punctured elytra, 

 with three distinct double rows of punctures. I have not 

 seen the female of that species but it is described as having 

 the pronotum very closely i)unctured and marked with a 

 roimd ])ale spot on each side. The generic characters of 

 Falcicornis are confined to the well-developed males and in 

 my opinion the genus cannot be maintained. 



71. Dorcus biplagiatus. (Plate XT, figs. 1-3.) 



Lmcanufi biplagiatus Westw.,* Trans. Ent. Soe. Lond. 185;"(, p. 200, 



pi. 10, fig. 4. 

 Metopodonltis biplagintiiK Gravely, Rec. Ind. Mas. xi, 191.'), p. 420, 



lig. 3 c, 



