RASPBERRY, BLACKBERRY AND DEWBERRY INSECTS 327 



tributed over the Northern states and Canada. The adult is a 

 long-horned, slender-bodied beetle about half an inch in length 

 (Fig. 284). It is of a deep black color except the prothorax, 

 which is yellow, usually with two or three black spots on the 

 upper surface. The beetles appear in June and the female 

 deposits her eggs (Fig. 281) singly in the pith of the tender 



Fig. 281. — The raspberry oane-borer girdling a cane after oviposition. 



new growth about six inches from the tip of the cane. She 

 first makes two rows of punctures encircling the cane about 

 half an inch apart, and between them, but nearer the lower 

 row, inserts the egg in a deep puncture directed upward (Figs. 

 282 and 285). Sometimes the beetle girdles the cane spirally, 

 and abandons the cane without ovipositing. The scars (Fig. 

 283) of these imperfect girdles are common on blackberry. The 

 egg is yellowish-white, elongate, nearly cylindrical, with rounded 

 ends slightly curved, and is about j\ inch in length. The 



