INSECTS AND FORESTRY—SOME EFFECTS OF THE WAR 45 
pine and larch have been felled, together with small groups 
of spruce. The Large Pine-weevil and the Pine-shoot 
Beetle are undoubtedly the most serious pests to be feared, 
but the variety of injurious insects found in this locality 
deserves notice. Both species of Myelophilus (M. piniperda 
Root of Scots Pine with Bark damaged 
by Black Pine-beetle. 
A TYPE OF DAMAGE DONE BY INSECTS WHICH THE WAR HAS 
INCREASED IN SCOTLAND.! 
and mznor) occurred, although the proportion of the latter 
species as compared with fzuiperda was low... . Felled 
and suppressed spruce harboured the Spruce Plantation 
Pine-beetle, Pztyogenes chalcographus, and spruce stumps 
and logs contained the Ambrosia Beetle, 7xypodendron 
fineatum, in hundreds. Dying branches of silver fir harboured 
a Bark-beetle, Cryphalus abzietis, while felled and suppressed 
1 Permission to reproduce this figure from Au//. 2 of the Forestry 
Commission has been granted, and the block has been lent by the 
Controller of H.M. Stationery Office. 
