83 



" The eggs are evidently laid in pairs, half an inch or 

 more apart along tlie branch, the larvae of each pair, uiton 

 hatching, working in opposite directions aronnd the 

 branch, at first just beneath the bark, but aftcrv.ard 

 (probably after the first year) entering the liard wood." 



The preventives and remedies recommended for th.e 

 Round-headed Borer are to be used for this insect. 



FLAT-HEADED BOKER {ChrysohofJiris femorato). 



The presence of this borer is usually indicated by 

 (lark 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 enormously 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 work of this borer tells sooner 



Fig. 17. Fig. 18.-FLAT. 



upon the tree, and in weakened the beetle, headed bobeb. 

 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 

 trees should therefore be watched closely. The eggs of 

 the Chrysolothris 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 



