5 88 FAMILY SCOLYTIDAE 



Beetle. $ Very small. Short cylindrical, bright testaceous, elytra black. Head dull, 

 the front rather finely punctate, with a fine raised median longitudinal line. Prothorax as 



long as broad, the sides nearly straight behind, gradually rounded to 

 Description. the apex in an ellipse ; surface in front with small granular eleva- 



tions, very finely punctured behind with a brush of short erect 



fulvous hairs medianly. Elytra as long as prothorax, cylindrical, abruptly truncate behind 

 the middle, shining black, finely punctate, the punctures of the rows and interstices scarcely 

 separable from each other ; apex strongly declivous, circular, covered with very short fulvous 

 pubescence and thence sub-opaque, finely striate, the interstices quite flat. Under-side and 

 legs bright testaceous, the anterior tibiae narrow. Length, 1.8 mm. 



The bright testaceous colour of body, black elytra, and fulvous downy pubescence of the 

 sharply curtailed extremities, render it easy to recognize. 



Specimens of this Xyleborus were forwarded to the Forest Zoologist, 

 Dehra, together with X. inter jectus and Xyleborus sp., by Mr. J. C. Carroll, 

 I.F.S., from the Tista Division in Bengal, in August 1910. Only the 

 beetle was obtained, it having been found infesting twigs of Mesuaferrea. 

 Mr. Carroll wrote: "The inquiry is made in connexion with an extensive 

 mortality which is occurring in this division amongst the nahor-trees, and 

 'I would mention that extensive fungal infection has also been found in the 

 trees that have died. Whether the beetle attack follows the fungal attack 

 or vice versa I cannot ascertain, and I should be glad of your opinion as 

 to whether the beetle attack alone would be sufficient to cause the death 

 of large trees." 



As described under Xyleborus mancus above, this beetle was reported 

 as causing injury to the branches of the cocoa-tree in Ceylon. 



Xyleborus interjectus, Blandford. 



REFERENCE. Blandford, Trans. Ent. Soc. Land. 576 (1894). 



Habitat. Tista Division, Bengal (J. C. Carroll). Also reported from 

 Japan, China. 



Tree Attacked. Nahor (M esua ferrea). Tista Division. 



Beetle. Oblong, piceous black, shining, antennae and legs ferruginous. Thorax squarish, 

 the sides and apex rounded, finely punctate anteriorly ; elytra cylindrical, scarcely half as 



long again as the thorax, convex ; striate-punctate, the lines of 



Description. punctures non-impressed, the interstices flat, with long close seriate 



bristles, which arise even up to the base from punctures which have 



at least the anterior margin elevated, so as to be subtuberculate ; apex obliquely depressed 

 and convex, striate-punctate and tuberculate, the interstices scarcely convex. Length, 3.4 mm. 



This species greatly resembles Eichhoffs X. validus, a common 

 Japanese species infesting firs. 



As already mentioned, .Y. interjectus was sent from the Tista Division 

 Mr. Carroll in company with Y. discolor. It tunnels into the twigs of 

 Mesuaferrea. 



Xyleborus sp. 



Species of Xyleborus, as yet undetermined, were sent in company with 

 discolor and interjectus as infesting Mesuaferrea in the Tista Division. 



