598 



NEW YORK STATE MUSEUM 



Agallia quadripunctata Prov. was abundant at Poughkeepsie May 21, 

 1903, on honey locust. 



Clastoptera proteus Fitch. Larvae and adults of this species were 

 abundant on Cornus at Kenwood N. Y. July 11. 



Lightning leaf hopper 

 Oniicii/s pruinosa Say 

 This active little leaf hopper is a trifle over V^ inch in length and mav 

 be recognized by its whitish covering over the 

 dark purplish or brownish wings. The young 

 insects are a delicate green and bear long floc- 

 culent masses of woolly matter. Both young and 

 adults are very active and occasionally occur 

 in immense numbers. A single example was 

 taken on scrub oak at Karner July 19, 1901. 

 It has been met with by the writer in large 

 numbers about ornamental bushes in a door- 

 yard, and jNIr Young found it present in enor. 

 mous numbers on a catalpa trre, which did not seem to be injured in the 



slightest. 



Hawthorn tingis 



Corytlinca arciiata Sa)' 



A small net-veined insect, about ]/i inch in length, may be found on the underside 

 of Crataegus or thorn and oak leaves during the summer. 



This species or one of its varieties is quite common in New York State 

 on oak leaves and an assemblage of its peculiar &g<g masses is an interesting 

 sight. It is occasionally abundant enough so that toward the end of the 

 summer foliage of oaks and other plants infested become somewhat dry 

 and withered. 



Description. The insect in its various stages has been described by 



Professor Comstock as follows : 



The eggs of this insect, which, I think, have not been described, are 

 smooth, whitish, glistening, semitransparent and ovoid in shape. Their 



enlarged (orininaU 



