THE INSECTS OF NEW JERSEY. 



99 



PHIL>ENUS Stal. 



P. lineatus Linn. Said to occur throughout North America. 

 P. spumarius Linn. Also of general distribution. 



CLASTOPTERA Germ. 



C. proteus Fitch. Throughout the State in July. 



var. flava Ball. Hopatcong VII, Jamesburg VII (Coll). 



var. vittata Ball. Chester VII (Coll); Lakehurst VII (div). 



var. nigra Ball. Jamesburg VI, 22, VII (Ds) ; Lakehurst VII (Coll). 

 C. xanthocephala Germ. New Brunswick VII, 20, Anglesea VII, 23 (Sm). 



C. obtusa Say. Piedmont Plain and northward VII-X, not rare; Staten 

 Island X (Ds) ; Jamesburg VII, VIII (div). 

 var. achatina Germ. Chester VII, 4, Jamesburg VII, 18 (Coll). 



JASSOIDEA. 



Under the general term "leaf-toppers" are included a large number of 

 active little species referred to the families Tettigoniellidas, Bythoscopidee 

 and Jassidse. They are more or less elongate, usually tapering posteriorly, 

 the head short, generally blunt and more or less crescent shaped, the tip 

 of the beak projecting between the front legs. The feelers are very short 

 and bristle-like, the hind legs long and fitted for leaping. They occur on 

 grasses, shrubs and trees of all kinds and many of them are injurious, 

 sometimes much more so than is generally appreciated. On grape one 



Fig. 36. Athysamis vaccini. Fig. 37. Thamnotetix fitchii. Fig. 38. Agallia 4-punctata. 



species occurs that often becomes excessively abundant after mid- 

 summer, punctures the cells of the leaves and produces a yellow spot 

 which afterward turns brown. When these spots are sufficiently close 

 together the entire leaf dries up, dies and drops long before the shoot is 

 mature. Young apple trees frequently suffer from an allied species that 

 yellows and dries the foliage soon after mid-summer. 



In general, the insects winter as adults in rubbish and crevices and lay 



