No. 1] E.P. Stebbing — On the Bostrichidas of the Indian Region. 31 



Cylindrical. Front simple or gibbous anteriorly, sometimes 

 slightly depressed behind. Anterior angles of epistome sharp, 

 pointed. The buccal border without a prominent tooth beneath the 

 eyes. Articulations of the antennal club are provided with two long 

 fine longitudinal channels on each face. Prothorax markedly 

 narrowed in front, not hollowed out above its anterior margin. Elytra 

 without prominent dorsal nurvures. Meso and metasternum meet at 

 the • outer edge of the intermediate coxa. The fifth apparent 

 abdominal segment simple. Sometimes slightly sinuate in the 

 middle of the posterior margin. 



The species of the genus are divided by Lesne into four divisions. 

 Only one Indian species appears to be yet known, so it is at present 

 unnecessary to consider these different divisions here. 



7. Schistoceros anobioides, Waterh. 



Waterhouse, 1888, An. Nat. Hist., 1 888, I, p. 35o($)(sk& Ccsnophrada). 

 Lesne, 1897, An. Belg., 1897, p. 18 ($). 



Id. 1898, An. Fr., p. 519. ' 



This species is very closely allied to a Malay and also a Chinese 

 'one, S. malayensis and S. casnophradoides, both of which may prove 

 to be inhabitants of the Indian Region proper. 



Long. 12-18 millim. Dark brown to black; anterior edge of 

 the prothorax covered with a bright red pubescence ; pubescence 

 on under-surface of insect rufous and dense. Prothorax not as wide 

 as long and markedly narrower in front, rounded on the sides and at 

 the posterior angles. The posterior space of the pronotum covered 

 with imbricate scales (<J) or flat granulations ( $ ). Forehead very 

 finely and slightly punctured, crescent-shaped when looked at from 

 behind. Apical declivity of the elytra with two marginal tubercles 

 on each side, less marked in $ ; unpunctured on their lower half, 

 -their lower border joined along their whole length with the edge of 

 the elytra. 



In the ? the punctuation on the elytra is slighter and the eyes are 

 distinctly larger than in S. malayanus and casnophradoides. Some 

 females are rendered remarkable by having an elytral sculpture 

 which becomes rasp-like owing to the development of small tuber- 

 cles in the intervals of the punctuation. In both sexes elytra are 

 covered with a very fine and short rufous pubescence. 



The chief character of this species is furnished by the conforma- 

 tion of the antennae of the ? . 



Distribution. — India: Bengal — Calcutta, Dinapur, Chota Nagpur, 

 Hazaribagh ; Central Provinces,— Saugor ; Bombay — Belgaum (in 

 March), Canara, Sind ; Madras: Ceylon : Burma. 



