304 SPHHROTRYPES SIWALIKENSIS, n. sp. 
2nd generation.—June to middle of July. ? 
grd generation.—Middle of July to end of August ? 
4th generatton.—September to middle of October ? 
5th generation.—Middle of October to end of Nov- 
ember ? 
(This latter would probably be only a ‘patted 
generation, the greater number of larve hiber- 
nating as such or as pupz and only a few beetles 
maturing and hibernating in hole in the thick 
bark of other trees.) . 
3. Does the insect attack other trees besides the sal ? 
4. Does the beetle attack the sal in the Central Pro- 
vinces, Chota Nagpur, N. Madras (Ganjam), N-- 
E, Bengal (Eastern sub-montane Himalayan 
forests, Jalpaiguri, Buxar-Duars) and Assam? 
