INSECTS INFESTING THE PEAR TREE. 115 



CHAPTER LVII. 



The Pear Tree Borer. (Cal.) 



{jEgeria pyri. — Harris.) 



Order, Lepidoptera ; Family, ^Egerid^. 



[Boring into the trunks of the pear tree, a pale-yellow, six- 

 teen legged larva.] 



This borer has about the same habits as the peach tree borer, 

 but, as far as known, never infests any other kind of tree than 

 the pear. 



The perfect insect (Fig. 88 — moth) usualh^ issues 

 from the pupa state in July. The wings expand 

 about eight lines ; they are transparent, but bor- 

 dered and veined with purplish black, and across the 

 tips of the front wings is a broad, dark band, show- 

 ing a coppery reflection ; the upper side of the body is pur- 

 plish-black, with the edges of the collar and of the shoulder 

 tufts, three bands across the abdomen, and the tuft at the pos- 

 terior end of a golden-yellow ; the under side of the body is 

 mostly of this color. 



Remedy. — Use No. 37. 



CHAPTER LVIII. 



The Pear-tree Seolytus. 



(Scolytus pyri — Peck.) 



Order, Coleoptera ; Family, Scolytid.e. 



[Boring into the branches of apple, pear, apricot, and plum 

 trees ; a small, footless grub, finally transforming within its 

 burrow into a dark-brown beetle.] 



The egg from which this grub hatches is deposited in the 

 latter part of the Summer, and is usually placed at the base 

 of a bud ; as soon as hatched, the gi'ub gnaws its way into the 

 branch and works around the central part, usually following 



