144 FAMILY BOSTRYCHIDAE 



Beetle.— Greatly resembles D. niinutus. Differs in its more convex form and eleven- 

 jointed antennae. The dorsal punctures of the elytra are less dense than in minutus. The 

 erect hairs on the apical declivity of the elytra less dense and slightly 

 Description. longer, cylindrical or sub-claviform, not pointed. In the female the 



two median teeth of the marginal row of the rasp-like arterior 

 portion of the prothorax are larger, wider apart, and more prominent than in the male. 



I have taken this beetle in July infesting bamboos in the roofs of 

 bungalows in Dehra Dun, and also a few individuals 



Life History. from bamboos at the Indian Museum in Calcutta, in 



October 1903. The life history of the insect is very 

 similar, so far as my present observations have been carried, to that of 

 D. mimihis. 



I think it is probable that the insect also infests sal posts used in 

 bungalow roofs in Dehra Dun. 



L. Fea took specimens of this insect at Teinzo in Burma in May, and in 

 Rangoon in May-Julv. Horn obtained a specimen which he saw issue from 

 the bamboo handle of a Japanese fan. 



II. BOSTRYCHINAE. 



Tarsi as long as, or longer than, the tibiae, last joint shorter than the 

 rest of the joints together ; prothorax strongly tuberculate, the anterior 

 margin with the lateral teeth more prominent than the median ones. This 

 division contains the groups : 



Bostrychines, including the genera Schistoceros, Hcterobostyychus^ 

 Bostrychopsis, Xylopertha, Xylodcctes, and Xylothrips ; 



Apatines, one species of the genus A pate ; 



Sinoxylonines, including the important genus Sinoxylon, which contains 

 the wood-borers S. crassnui and 5. anale. 



Schistoceros (Caenophkada). 

 Schistoceros (Caenophrada) anobioides, Waterhouse. 



References. — Waterhouse, Ann. Nat. Hist, i, 350 (female), sub Caenophrada (1898) ; Lesne, .-inn. Belg. 

 p. 18 (male; (1897) ; id. Ann. Fr. p. 519 (1898) ; Bostrychus jesuita, Stebbing, Inj. Ins. Ind. For. p. 42 

 (1899); Bostrychopsis jesuita, S:ebbing, Ind. Mus. Notes, vi, 35 (1903). 



Habitat. — Singbhum, Chota Nagpur, Calcutta. Also reported from 

 Dinapur, Hazaribagh in Bengal, Saugor, Belgaum, Kanara, Sind, Madras, 

 Burma, and Ceylon. 



Trees Attacked. — Sal {Shorca rohusta) : Singbhum ; Guava {Psidium 

 guava) : Hazaribagh (Ind. Mus. Notes). 



