FAMILY BOSTRYCHIDAE i 75 



the sapwood more or less horizontally, turned away at an acute angle as 

 they proceeded deeper into the wood. Only quite small grubs were found 

 near the bottom of the female tunnels. The egg-tunnels go deep down into 

 small poles, and in some cases observed the poles were seriously weakened 

 by the attacks of the beetles. 



Sinoxylon indicum, Lesne. 

 Habitat. North Coimbatore, Madras. 

 Tree Attacked. -Anogeissus latifolia. Lokanhalle, North Coimbatore. 



Beetle. Small, elongate, cylindrical, dark red-brown, shining. Head 

 black, rugose-punctate. Prothorax very convex, raised into a transverse 



ridge medianly, the anterior portion coarsely 



Description. rasp-like, with four teeth on either side of anterior 



margin, the innermost ones the largest; posterior 



part finely rugose-punctate. Elytra scarcely widened apically, rugose- 

 punctate, the rugosities coarser in apical portion ; declivity rugose-punc- 

 tate, with two sharp teeth placed centrally one on each side of suture, 

 the outer edges of declivity raised and broadly toothed. Length, p IG ~"j~., 



5.5 to 6 mm. Sinoxylon indicum, 



Lesne. Madras. 

 i his insect oviposits in fairly fresh Anogeissus latifolia 



wood. I found the beetle riddling the posts supporting 

 Life History. the roof of the veranda of the bungalow at Lokanhalle 

 in North Coimbatore in August 1902. These posts con- 

 sisted of Anogeissus latifolia poles cut and placed in position when the 

 bungalow had been repaired a short time previously, the wood consequently 

 being quite green. The insect was hard at work on the loth and nth of the 

 month, engaged in laying its eggs in the wood. On the external surface of 

 the posts round holes were visible, many having small masses of fresh wood- 

 powder at their entrances. The beetle tunnels in horizontally for a distance 

 varying from half an inch to an inch, and then turns to the right or 

 left and eats out a tunnel which curves round the stem, running in a more 

 <>r less horizontal direction. Near the bottom of this tunnel the eggs are 

 laid. I have not taken the irrubs of the insect. 



Sinoxylon conigerum, Gerst. 



REFERENCE. Gerst. .M. licrl. Ac mi. p. -'<> s 11X55). 



Habitat. Tinnevelly, Madras. 

 Tree Attacked. Al/n-.'.iii auuira. Tmm:\vlly. 

 Beetle. Short, squat, and stout, easily distinguished in>m ntrntum by its much bra 



and squat appearance. Black, slightly reddish, moderately sinning. l'roil>or.,\ convex, i 



on disk ; posterior portion line-Is rugose; anterioi rugosi pun uie, tin- 

 Description, rugosities coarsest ;mt<Tiorly .md lateral!) : i"nr lateral teeth on 

 anterior margin, the inner tlin-c l.ti-e. ->li.irp. and more or less i .1 ennui 



size. Elytra one-third as Ion- again as prothorax, slightly widest apically ; rugose-punctate, 



