176 FAMILY BOSTRYCHIDAE 



the punctures strongest apically, a short raised longitudinal stria on either side of suture in 

 basal half; the two teeth on elytral dedivity stout, pointed, placed at a distance from suture 

 in upper portion of declivity and inclined outwards. Length, 3.5 mm. 



This insect was reported in igo8 by the District Forest Officer 

 of Tinnevelly, Madras, as tunnelHng into the wood of Albizzia amcira in 



July- 



Sinoxylon sudanicum, Lesne. 



Habitat.— Saharanptir District, North India ; Vellore, Madras Presidency. 

 Trees Attacked.— Dhak {Bidea frondosa): Bicharigahr, Saharanpur ; 

 Casuarina [Casnarina cquisetifolia) : Vellore. 



Beetle. Very small. Black, elytra reddish brown ; under-surface clothed with a fine 



long silvery silky pubescence. Prothorax convex, the anterior half rasp-like, the anterior 



margin with four lateral teeth on either side, the innermost the 



Description. smallest ; posterior half finely rugose, with a sparse fine yellow 



pubescence laterally. Elytra rugose-punctate, denser near declivity, 



latter with two small sharp teeth placed fairly close together in upper half. Length, 3 mm. to 



3.4 mm. 



This insect was sent to me from Vellore in Madras in company with 



other pests of the casuarina. The beetle apparently 



Life History. tunnels into the wood to oviposit. Whether it damages 



living trees is yet unknown. I cut out some specimens 



of the insect from the wood of Butea frondosa in November igo8 in the 



Saharanpur District. The beetles were mature in the pupating-chambers. 



Sinoxylon tignarium, Lesne. 



Reference. — De Niceville, Ind. Mus. Notes, v (113). 



Habitat. — Darjeeling District. 



Tree Attacked. — Mallotus roxhurghianas, Darjeeling District (C. G. 

 Rogers;. 



Beetle.— .Short, dark red-brown. Prothorax convex, anterior portion rugose-punctate, 



denser on sides, the anterior margin with three lateral teeth of more or less equal size, 



posterior portion finely rugose. Elytra finely rugose-punctate, denser 



Description. near declivity, latter with the two teeth placed rather close together 



on either side of suture. Length, 4 mm. 



Specimens of this Sinoxylon were bred out at the Indian Museum from 

 branches of Mallotus roxhitrij;hianiis, sent there in April 

 Life History. 1900 by Mr. C. G. Rogers, at the time Deputy Conser- 



vator of Forests of the Darjeeling District. Specimens 

 of the infested branches were also sent to me for the collection of forest 

 pests I was getting together that year for the Paris Exhibition. The 

 specimens of the beetle I bred out were submitted to M. Lesne, who 

 notes them as a new species of Sinoxylon. Specimens of the beetles 

 bred out at the Indian Museum were sent to Dr. L. O. Howard in 



