Fig. 5- 



35 



(see Fig. 5) then begins the construction of a tunnel of its 

 own, directed at nearly right angles away from the parent 



brood chamber. These 

 tunnels become more or 

 less tortuous in their 

 course, being continued 

 to a length varying from 

 one to two inches before 

 the larva reaches matur- 

 ity. In the slightly en- 

 "Srg/d!^^^'"''''''^^''''**^^''^'^'"^*"^ larged terminus of the 

 tunnel the larva changes to a pupa (see Fig. 6), in which con- 

 dition it continues for about ten days, at the end of which 

 time it usually bores its way out as a perf 3ct beetle, ready to 

 carry on the work of constructing brood chambers elsewhere. 

 By carefully removing the bark on a portion of an in- 

 fested limb or trunk, a good view can be had of the peculiar 

 appearance (see Fig. 7) produced by these radiating galleries. 

 When there are many brood chambers near each other, the 

 result is a confused network in which it is diflBcult to trace 

 the separate galleries. In cases of this sort, which frequently 

 occur, the bark becomes almost entirely separated from the 

 tree, girdling and killing it. In 

 some bad cases observed at Au- 

 burn there have appeared on the 

 bark from thirty to forty of these 

 exit holes to the square inch. 



-. ^ , <-,,•• ^'g- 6— Pupa of the Fruit Bark 



In the extreme South It is Beetle, greatly enlarged. 



almost impossible to trace any broods. They seem to breed 

 continuously through the spring, summer and fall. We have 

 found here at Auburn in December, females in newly formed 

 brood chambers, with males in attendance at the mouth of the 

 burrow. We have found at this time larvse also, so the insect 

 must pass the winter in both egg and larval stages. 



Remediks. 



It seems very likely that the presence of this insect, as in 

 tha case of the peach tree borer, is an evidence of a lack of 



