FAMILY SCOLYTIDAE 493 



elliptical rin^^ on the bark usually corresponded in number with the larval 

 galleries on the inner side of the bark and in the sapwood. Further obser- 

 vations are required on this point. 



Previous to findin^i^ this insect I saw in the Coinibatore Forest Museum 

 a portion of an Aiiogcissits post marked " attacked by insects." The post 

 showed a series of plans of the old egg and larval galleries evidently caused 

 by a scolytid insect. They resembled closely the ones described here, and 

 the post had probably been attacked in the forest by this beetle. 



Newly cut poles should be at once removed from the forest or barked. 

 If neither is possible, and a stream is close by, they 



Protection and should be put into this for a couple of weeks. This will 

 Remedies. probably be sufficient to render the bark distasteful to 



the insects. In the case above described the trees had 

 been cut for road-making purposes. Care should be taken to see that poles 

 cut in excess of the requirements are not left unbarked in the forest, as was 

 the case in this instance. The last part of April and first half of May, the 

 last half of July and the first half of August, are probably the flight times of 

 the beetle, i.e. the egg-laying periods, with perhaps the middle portion of 

 September if there is a third, or portion of a third, generation, which is 

 probable. It is quite possible that the eggs of the first generation of the 

 year may be laid in February. The April generation would then be the 

 second one of the year. 



In plantations, coppice areas, etc., all infested trees should be at once 

 cut out and either barked, if this is possible, or burnt. The periods for 

 treating the plantations would be the three weeks succeeding the completion 

 of egg-laying in the different generations. 



Niponius andrewesi. — This Niponim, already described under the 



sal-tree Sphacrotrypcs, is also predaceous upon this species. I took mature 



specimens of the beetle in the tunnels made by the 



Predaceous Insect, bark-borer in Anogeissus in August. The beetles 



were probably engaged in laying their eggs in the 



egg-galleries of the Sphaerotrypes. 



Sphaerotrypes querci, Stebbing. 



References— Stebbing, Iiid. For. Mem. Zoo]. Ser. vol. i, pt. i, 5 (1908); id. Ins. Pes. Himal. Oaks, /;;rf. 



For. Records, vol. ii, pt. i, 19 (1909). 



Habitat. — Kumaun, North-West Himalaya. 

 Tree Attacked. — Moru Oak (Quercus dilatata). Naini Tal. 

 Beetle.— Short, oval, very conve.K. Black, with antennae slightly lighter and tarsi ferrugi- 

 nous. Head punctate, more strongly so at sides, hairy at vertex. Prothorax one and a half times 

 as broad as long, base bordered and produced backward to form an 

 Description. obtuse angle, the angle truncate, concave on either side, emarginate 



anteriorly, and sides rounded and narrowed anteriorly, a narrow 

 elevated line down centre more prominent and shining at base and not reaching to anterior 

 margin ; coarsely and somewhat closely rugose ; a few stout bristles, yellow in colour, on 

 anterior outer margin. Scutellum squarish, oblong, punctate. Elytra slightly wider than 



