Paet I.] Stebbing : Insect Pests of the Himalayan Oahs. 
11 
tunnel in the wood, bores through the bark which overlies it and leaves 
the tree. 
Larvae in various stages up to nearly full grown and full grown were 
taken from trees in Naini Tal towards the end of May. Several of 
these grubs had already bored down into sap wood and constructed the 
pupal chambers and commenced to pupate. 
The beetle appears on the wing towards the end of July and in 
August, the pupal stage lasting from six weeks to two months. It is 
possible that there may be two generations of the insect in the year, but 
I think it is improbable. It is more likely that the beetles issue at 
intervals (as the larv® mature) through a part of July, August and into 
September. 
Damage committed in the Forest. 
The insect attacks the tree in a manner very similar to its Buprestid 
companion above described. The two are not infrequently found at work 
in the same tree, the Scolytids being at times also present. 
XYLOTRECHUS SMEI, Lep. et Gory. 
Eeferenee. — Steb. Depnrtmental Notes on Insects that affect Forestry (X. vicinus). I, 24. 
Gahan, Fauna British India, Coleop. Vol. I, Cerambycida; No. 270 (p. 241). 
Nature of Attack. 
Similar to that of X. stehhingi. Only as yet reported in the Moru 
oak. 
Previous Record of Insect. 
This insect was taken near Kilba in Bashahr in 1901 by the Range 
Officer in charge of the Range. 
Distribution. 
In addition to Bashahr State in the North-Western Himalayas, the 
insect according to Gahan is to be found in Bhutan and the Deccan. 
B 
