APH1DID.«. 



293 



attack. This tig. was photograplied from a plantation which was not 

 in a very good state of health. If, as a rule, the health of the crop 

 is fairly good, the trees "throw oft*" the attack, and no a[)preci- 

 able damage is done. It is often found on young Scots firs in the 

 nursery-lines, but if the general health of the plants is good they will 

 soon get over the attack. 



Chbrmes corticalis (Kalt.) 



This species is very common in the south of England on Wey- 

 mouth pine, and is said to do very great injury to the trees. It has 



FifT. -275.— Cliermes pin 



stem of young Scots plii 



27(5.— Cheniip.s i>ini on tei 



Scots pin,:. 



been notably sent me from the sandy soils of Surrey, and I have 

 found it bad on one tree in Kent. Fig. 278 is taken from a branch of 

 Weymouth pine in a garden in Cheshire. I have not found this 

 species in Xorthumberland,^ so that I am unable to give any descrip- 

 tion of the creature. 



^ Quite recently Mr G. Ross, Hexliain, sent me a specimen from l^iding Mill, 

 Northumberland. 



