PINE-SHOOT TORTRIX MOTH. 73 
which they infest are to be found; yet, curiously enough, although I 
have seen bad attack myself, no report has ever before been sent me 
of it as seriously injurious. 
The history of the attack, condensed from the accounts of various 
observers, is as follows. The moths appear at the end of June, but 
mm HM 
RETINIA BUOLIANA.—Moth, nat. size and magnified; injured shoot. 
chiefly in July, on young wood, and are mostly to be found on trees of 
ten to fourteen years old. Here they are little observable as they rest in 
the day amongst the needle-like leafage, but in the dusk of the evening 
they swarm about the tops of the trees; and here pairing takes place. 
The fertilized females lay their eggs singly between the buds at the 
end of the shoot, and from the gnawings of the caterpillars which 
presently hatch from these eggs during the later part of the summer, 
a flow of rosin results, which to some degree coats over the injured 
bud. Here the caterpillars hybernate, and with the growth of the 
spring shoots their presence becomes more noticeable. Then they 
often attack the neighbouring shoots, or one side of them, moe 
