FAMILY BOSTRYCHIDAE i 47 



Beetle. Long parallel ; dark brown, with the femora slightly reddish 

 and the antennal club rufous. Elytra glabrous. 



$ Front of head furnished with a tubercle, 



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



occupy a quarter of the inter-ocular space ; finely 



and densely punctate. Prothorax 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 fine and 

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

 regular rows ; apical declivity depressed on either side of suture, latter not 



prominent ; apex of elytra slightly turned up. Intercoxal lobe of the 



., ' j-iiAij-, , unicornis, \\ater- 



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



densely punctate, with a very fine pubescence. 



$ Head as in $. 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, 9! mm. to 1 1 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. I). Bell, of 

 the Indian Forest Service, in Kanara, in the Bombay Presidency. 



Heterobostrychus pileatus, Lesne. 



REFERENCE. Lesne, Ann. Soc. Em. Fr. p. 559 (1898). 



Habitat. Singbhum, Chota Nagpur. Also reported from Kanara, Bombav 

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

 Tree Attacked. Sal (Shorea robusta). Singbhum. 



Beetle. 2 Very similar to unicornis. The frontal tubercle occupies transversely IIKMC 

 than a third of the interocular space, and is much larger than in unicornis. The proth.u.ix :-> 



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

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



widely curved. 



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

 shining. Anterior angle of prothorax furnished with a prominent hook. The lower in. ir-iii.il 

 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 

 <J the front of head is similar to that of $?, whilst the prominent hook of tin- anterior angle <>l 

 prothorax is replaced by a simple upturned tooth. Length, 9-1 i mm. 



This insect has been taken in the Singbhum forests in Chot.i ur, 



where it was found tunnelling into the -al |><>1<- .uul 



Life History. beams of which the f<>rrst rest-house constructed. 



The only individuals I obtained were taken in Ma\ i s 'i;, 



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

 purposes. 



The life history is, doubtless, somewhat similar in character to that <.f 

 Schistoccro* iiaoliioiilcs, already briefly described. 



