47.8 



NEW YORK STATE MUSEUM 



Locust twig borer 



Ecdytolopha iusiticiana Zell. 



A pale whitish caterpillar bores the smaller twigs of locust, causing a thickened, 

 irregular growth i to 3 inches long. 



The work of this species has been observed by us in several localities, 

 though the borer is rarely abundant enough to cause material injury 

 Mr J. G. Jack of the Arnold arboretum, states that the young locusts are 

 very subject to serious injury by this borer. 



Description. The full grown larva, according to Professor Comstock, 

 is about half an inch long, yellowish and somewhat darker along the dorsal 

 line. The head is dark brown and the thoracic shield a light honey yellow. 



The moth has dark ashy brown fore wings with a large patch of dull 

 pinkish white on the outer part and several small black spots near the 

 middle of this patch. The hind wings are a little lighter than the basal 

 portion of the fore wings ; wing spread about ^ inch. 



Life history. The larvae, according to Professor Comstock, become 

 full grown about the first of October and desert the stems through holes 

 cut to the surface, descend to the ground and transform to pupae among 

 the dried curled leaves in which they spin thin, tough silken cocoons. One 

 moth emerged October 17 and others from the 20th to the 27th. 



Distribution. This species apparently has a wide distribution, as it has 

 been recorded from as far west as Colorado. 



Remedial measures. The most effective method of checking this 

 species is to cut off and burn the infested twigs any time before October. 



Woodbine borer 



Sapcrda punct icollis Say 



A bright yellow-marked, jet-black beetle, almost ^ inch long, may be bred from 

 woodbine, sumac and possibly poison ivy. 



This is one of the smallest and prettiest species belonging to this 

 important genus. It is a rare form in most collections in spite of the fact 

 that the insect lives in the dead branches of the common Virginia creeper. 



Life history. The beetle is shy, rarely seen, and though it may occa- 



