


PREFACE. 
ale object of issuing the Departmental Notes on 
Insects that affect forestry in India in their present 
form is to enable the Officers of the department and others 
interested in the culture of trees to keep up to date with 
our knowledge of the subject and to assist the advances 
ment of the work by studying the still unknown portions of 
the life histories of the various pests detailed and of 
others still unrecorded. To this end, criticism and dis- 
cussion are cordially invited. 
Several of the insects dealt with are new to science 
and most of the information on their habits, etc., is new. 
It has not been considered necessary here, however, to 
give in full detail the reasons for the statements made 
with reference to some of the new and more complex of 
the life histories. The author hopes to publish elsewhere 
full and detailed technical papers dealing with the matter 
from the scientific standpoint. 
It is proposed to give information in these notes upon :— 
i.— Hurtful Insects. 
ii.— Useful Insects. 
FRE. Oe BBENG,. 
DEHRA DUN; 
February 1902. 
