FAMILY BOSTRYCHIDAE 147 



Beetle. — Long parallel ; dark brown, with tlie femora sliL;hlly reddisli 



and the antcnnal chili rufous. Elytra glabrous. 



$ Front of head furnished with a tubercle, 



Description. densely hairy and arc-shaped, which does not 



occupy a cjuarter of the inter-ocular space ; finely 



and densely punctate. I'rothorax as wide as long, greatest width in the 



middle, sides slightly rounded, anterior margin slightly indented, the 



indentations bounded on each side by an erect but not prominent tooth, 



posterior angles rounded ; middle of posterior area covered with tine and 



dense flattened granulations. Elytral punctures well marked, but not in 



regular rows ; apical declivity depressed on either side of suture, latter not ^ 'f'" 9"^" 



prominent; apex of elytra slightly turned up. Intercoxal lobe of the ^- ■' ,,' , 



• , r ,•.,,,,-, - , , mncornis, \\ ater- 



mesosternum with a nne median keel. Abdominal segments finely and house Assam etc 



densely punctate, with a very fine pubescence. 



$ Head as in J. Elytra furnished on either side of the apical declivity with two 



tubercles, the outer simple, the inner larger and prolonged into a robust horn, curved inwards. 



Length, 95 mm. to 1 15 mm. 



I took a male and female of this insect in the bungalow at Kachugaon, 



in Goalpara, Assam, on 23 May 1906, at night. I was 



Life History. of opinion that they had come either from the sal or the 



bamboos of which the bungalow was constructed. Both 



the sal and bamboos were pitted with the circular entrance and exit holes of 



wood-boring insects. The insect has been taken by Mr. T. R. D. Bell, of 



the Indian Forest Service, in Kanara, in the Bombay Presidenc\-. 



Heterobostrychus pileatus, Lesne. 



Reference. — Lesne, Ann. Soc. Em. Fr. p. 559 (1S98). 



Habitat. — Singbhum, Chota Nagpur. Also reported from Kanara, Bombay 

 Presidency, Cochin, and Tharrawaddy, Burma; Seven Pagodas, Tonkin. 

 Tree Attacked.— Sal (Shorea robusta). Singbhum. 

 Beetle. — $ \'ery similar to u)iicoi'nis. The frontal tubercle occupies transversely more 

 than a third of the interocular space, and is much larger than in iinicontis. The prothorax is 

 longer than wide, widest behind the middle, narrower than in 

 Description. unicornis. Anterior angles less well defined, posterior angles more 



widely curved. 

 (J Heteromorphous, head and prothorax larger than in $. Front simple, smooth, 

 shining. Anterior angle of prothorax furnished with a prominent hook. The lower marginal 

 tubercle of apical declivity of the elytra only slightly developed, the upper tubercle larger, pro- 

 longed into a horned prominence curved inwards and downwards. In the homeomorphous 

 $ the front of head is similar to that of 5, whilst the prominent hook of the anterior angle of 

 prothorax is replaced by a simple upturned tooth. Length, g-i r mm. 



This insect has been taken in the Singbhum forests in Chota Nagpur, 



where it was found tunnelling into the sal poles and 



Life History. beams of which the forest rest-houses are constructed. 



The only individuals I obtained were taken in May 1897, 



at which time the insect appeared to be issuing from the timber for pairing 



purposes. 



The life history is, doubtless, somewhat similar in character to that of 

 Schistoceros anobioides, already briefly described. 



K 2 



