PEACH INSECTS 



277 



Reference 

 U. S. Bur. Ent. Bull. 68, Pt. IV. 1907. 



The Fruit-tree Bark-beetle 



Scolyius ragalosus Ratzeburg 



This European bark-beetle was first noticed in this country 

 in 1877 in the vicinity of Elmira, N. Y. It now occurs in Canada, 

 and is generally distributed 

 over the Eastern states as 

 far South as Alabama and 

 Georgia. It breeds freely 

 in the peach, plum, cherry, 

 apricot and apple and will 

 also attack quince, moun- 

 tain ash, June berry and 

 chokecherry. Its presence 

 is indicated by numerous F.a. 237.- The fruit-tree bark-beetle (X20). 



small exit holes in the bark, about jq inch in diameter, hence 

 its common name of shot-hole borer. In stone fruits its work 



is rendered con- 



spicuous by the 

 gum which oozes 

 from the bur- 

 rows and hangs 

 in unsightly 

 masses from the 

 branches (Fig. 

 243). 



The adult, or 

 beetle, is about 

 jQ inch in length and of a dark brown color, except parts of 

 the legs and the tips of the wing covers, which are dull reddish 



Fig. 238. 



Brood chamber and larval burrows of the 

 fruit-tree bark-bcctle. . 



