FAMILY SCOLYTIDAI*: 545 



In case of severe attacks of these pests in areas where natural 

 regeneration is urgently required, I would recommend 



of Protection. ^^^ "^^ °^ ^^^- ^^'hen a severe attack is in progress a 

 careful watch should be kept over the area affected, 

 and when the maximum number of infested seeds have fallen to the ground 

 the undergrowth should be fired. In Assam this period would be about the 

 first week or so in June. This firing would kill off large numbers of the 

 pests, and would thus enable next year's crop of seed to reach maturity. 

 This suggestion could fall in with the experiments conducted by Mr. Perree 

 in Goalpara in 1905-6 in firing areas to get rid of the dense undergrowth, 

 grass, etc., with the object of obtaining natural regeneration. 



Coccotrypes sp. 



Habitat. — South Malabar, Madras. 



Tree Attacked.— Teak {Tcctona <:;randis). Nilumbur Teak Plantations, 

 South Malabar. 



Beetle.— The only specimen taken was in too poor a state of preservation to make it 

 possible to determine whether it is C. integer or other known species of the genus 



I cut a specimen of this scolytid out of a green dying branch of a teak- 

 pole. The beetle oviposits in the bast layer and sapwood, the grubs 

 feeding in the bast onl}-. 



Dryocoetes. 

 A species of some importance infests the oak in the Xorth-West Himalaya. 



Dryocoetes hewetti, Stebbing. 



Rf.ferences — Stebbing, Some Undescr. Scolyt. Ind. For. Meni.Zool. Sen vol. i, pt. i, p. 1 1 (ifjoS): id. Ins. 

 Pes. Himal. Oaks, Ind. For. Records, vol. ii, pt. i, 15 (1909). 



Habitat. — Kumaun, Xorth-West Hiinala\a. 



Trees Attacked.— Moru Oak [Qncrcus dilatata), Ban Oak {Ouerciis 

 incana). Naini Tal and Kinnaun Oak Forests. 



Beetle.— A small oblong black insect with a reddish-chestnut tinge. Head with front 

 slightly convex, shining, punctate, very finely transversely striate at sides, with long scattered 



hairs on front and a fringe of hairs on mouth. Prothorax slightly 

 Description. broader than long, base truncate, humeral angles rounded, sides 



and apex forming a blunt ellipse ; surface convex, raised into a point 

 medianly and depressed posteriorly ; granulose, the granulations coarse on anterior half, 

 especially on disk, and much finer posteriorly. Scu;ellum rather large, shining, convex, 

 rounded. Elytra slightly broader apically than prothorax and a fourth as long aoain ; 

 truncate at base, apex strongly rounded ; surface shining, flat medianly and stron^^ly declivous 

 apically, the declivity shining and edged with long spiny hairs ; rest of surface with rows of 

 punctures which are fine basally and laterally and confluent and rugose medianly. I nder- 

 surface lighter reddish- brown medianly, with longish hairs dense laterally. I.en^'ih 

 2.5 mm. to 3 mm. 



9003 M \\ 



