PITYOGENES CONIFERZ, MS. 245 

and egg galleries are not unlike those of its Jarger companion, 
with which they are often found mixed up and interlaced. The 
iatter are, however, larger, have longer arms and the egg 
galleries are fewer in number, and go much deeper into the 
sapwood, this being more especially noticeable in the case 
of the smaller branches attacked. 
I have not yet found this insect infesting spruce but it or a 
very close ally occurs plentifully in the branches of the Prnus 
Gerardiana in which its life history appears to be the same as 
that already given for the blue pine. It was found in this tree 
towards the end of June near Kilba, Bashahr State. 
Points tn the life history requiring further observation. 
1. The number of 2’s pairing with each ¢ andthe num. 
ber of egg-galleries bored by each. 
2. The number of generations passed through during the 
year and the time occupied in the various stages 
of each, 
3. Whether the insect attacks the spruce. 
Localities from which the spectes of Polygraphus and Pityos 
genes have been reported. 
The range of these beetles, as far as has yet been ascer- 
tained, is the same as that already given for the Blue Pine 
Tomicus (Zomicus sp.). 
Protection and Remedies, 
The recommendation already made for the treatment of the 
Tomicus attacks apply equally to those of its three allies, In 
addition it should be mentioned that when young growth is 
badly attacked by the larger Polygraphus and the Pityogenes, 
the signs of whose attacks, as already explained, are easily dis- 
cernible, it will be advisable to cut out all badly infected plants 
and saplings and burn them. This should, of course, be done at 
a time when they are full of larve or pupe and Jdefore the 
beetles begin to mature and issue, 
