BORERS. 83 
*¢ The eggs are evidently laid in pairs, half an inch or 
more apart along the branch, the larve of each pair, upon 
hatching, working in opposite directions around the 
branch, at first just beneath the bark, but afterward 
(probably after the first year) ontering the hard wood.” 
The preventives and remedies recommended for the 
Round-headed Borer are to be used for this insect. 
FLAT-HEADED BORER (Chrysobothres femorata). 
The presence of this borer is usually indicated by 
dark and dead patches on the bark of apple, pear and 
peach trees. It is an insect no less pernicious than 
the old Saperda. The grub, with its cnormonsly flat- 
tened anterior, usually burrows just underneath the bark, 
although it occasionally enters 
the hard wood. Its tunnels are 
flattened, and by this character 
are at once distinguished from 
those of the Round-headed Borer. 
The workofthisborertellssooner __ : 
5 : Fig. 17. Fig. 18.—Fuat- 
upon the tree, and in weakexed yyy prerue, HEADED BORER, 
trees it is more fatal, than that 
of the other insect. It usually attacks trees upon 
the south side, or on the side towards the prevailing 
winds, or in other places where injuries are apt to occur. 
It nearly always attacks trees which are weakened, such 
as those recently transplanted or top-grafted. Newly set 
treos should therefore be watched closely. ‘The eggs of 
the Chrysobothris are laid on the bark from early June 
until August. The young grub eats through the bark 
and matures rapidly, for the next spring it transforms 
