LOPHOSTEBNUS. 9 



4. Baladeva walkeri, Waterh. Trans. Ent. Soc. ii, p. 226, pi. 21, fig. 1 

 (1840). 



c? . Dark brown or almost black in colour ; the back of the 

 head, the prothorax, and the underside more or less reddish. 

 Head feebly and sparsely punctulate above, somewhat granulate 

 at the sides ; mandibles very long and, in well-developed speci- 

 mens, armed with a tooth on the outer margin near the middle. 

 Antennae not reaching to the middle of the elytra ; first joint 

 reaching to the hind margin of the rather broad eye. Pronotum 

 glossy, very minutely punctulate. Elytra rugulose and more or 

 less nitid. Tibiae of the front and middle legs strongly asperate, 

 or subspinose beneath ; front tarsi somewhat dilated, the tirst 

 joint longer and narrower than the second or third. Hind breast 

 with a faint tawny pubescence at the sides, a triangular area in 

 the middle naked and glossy. Last ventral segment sinuate and 

 slightly depressed, at the apex. 



$ . With much shorter head, and shorter and more slender 

 antennae, than the male ; the legs also shorter, smooth, the 

 front tarsi very little broader than the hind tarsi. Pronotum 

 more deeply punctulate than in the male and not so glossy. Hind 

 breast without pubescence. Last ventral segment rounded at the 

 apex. 



Length 38-79 ; breadth 15-29 mm. 



Hob. Burma ; Siam. 



Genus LOPHOSTERNUS. 



Lophosternus, Guer. Icon. Regm Anim., Ins. p. 209 (1844). 

 Cyrtosternus, Guer. Icon. Regne Anim., Ins. p. 210 (1844). 

 Cyrtognathus (part.), Lacord. Gen. Coleopt. viii, p. 53 (1869). 



Type, L. buqueti, Guer. 



Range. Oriental Region. 



cJ . Head elongated behind the eyes, short in front ; mandibles 

 long, curred downwards and backwards, crossing when closed, 

 their inner edges sharp ; palpi long, the labial equal in length to 

 the maxillary ; antennal tubers depressed, separated by a more or 

 less deep channel ; eyes emarginate in front. Antennae usually 

 shorter than the body, 11-jointed ; the first joint slightly curved, 

 reaching to the hind margin of the eye or a little beyond ; 

 the third longer than the first ; the fifth to the tenth, and some- 

 times also the third and fourth, produced into a sharp angle or 

 tooth at the apex on the anterior side ; the fourth to the tenth 

 each much shorter than the third ; eleventh with a very distinct- 

 appendix divided off by a transverse carina and projecting angle. 

 Prothorax transverse, convex above, its lateral edge oblique and 

 often denticulate in front, produced into a spine at the middle, 

 into another spine between the middle and front margin, and 

 sometimes sharply angulated or toothed near the base. Elytra 



