140 



"The British Coliiinliian insec-t very rarely attacks the cores and seeds of 

 the fruit. There are usually several, two. three or more, larv.-e in each apple, 

 and the cocoons are made beneath {lakes of the bark on the trees or beneath 

 leaves or rubbish on the surface of the ground." 



CHAPTER XI.— BORERS. 



I!oiNDllE-\i).\n I'.onKR (Sainrilii i-iiinliiUi \ . 



a h 



(I'-in. 40.) 

 (0,1 and (6) larva; (c,i boetle ; (<U pupa. Enlargpil. 



The r,(/(/.s' are deposited about June, near the base of the trunk of the apple 

 tree. The luria eats its way through the outer bark to the inni>r, and takes 

 abo\it three years to develop. It works in the sapwood. where it forms flat, 

 ■shallow cavities, filled with sawdust-like castings. These are often seen on 

 the bark, and indicate where the " borer " is at work. As it reaches maturity, 

 it cuts a passage uinvards into the solid wood and then curves towards the 

 b.-irk. In this channel it enters the ;)»/'" stage, about spring. When fully 

 developed it is an inch long, with a round head that distingui.shes it from the 

 flat-headed borer, which also affects the apjile tree. 



The imago is a slender beetle, one inch long, with two broad, whitish 

 stripes on the wing covtrs, and long jointed antennie. It apiiears aliout 

 .Tune. 



Rcmcilij. — Same as that for tlie following : 



