THE INSECTS OF NEW JERSEY. 589 



PACHYNEMATUS Konow. 



P. corniger Nort. New Jersey (Cress); Riverton (Vk) ; Merchantville V, 

 2C (Dke); Clementon IX, 5 (Hk). 



P. affinis Marl. Greenwood Lake, larva on grass (Jl). 



P. extensicornis Nort. The larva feeds on wheat "throughout the north- 

 eastern United States" (Marlatt). 



P. subalbatus Nort. Toms River (Bt). 



P. gregarius Marl. (Micronematus) Englewood, on smooth-leafed willow 

 (Dyar). 



PRISTIPHORA Latr. 



P. idiota Nort. Orange Mts. VIII, 29, Jamesburg VIII, 8 (Coll); lona V, 

 25 (Dke) ; the larva is said to be an important enemy of cranberry, 

 and this is probably the species that is occasionally found in Atlantic 

 Co. 



P. sycophanta Walsh. Orange V, 24 (Coll) ; larva on willow, birch, 

 "Vaccinium, etc. (Dyar). 



P. banks! Marl. Del. Water Gap VII, 7, Clementon V, 16, Atco VI, 13 



(Jn); lona IV, 13 (Hk). 

 P. tibialis Nort. Long Island, and almost surely New Jersey. 



EUURA Newn. 

 E. nigra Prov. Riverton (Vk) ; all the species are gall-makers on willow 



(Dyar). 

 E. salicis-ovum Walsh. Makes a stem gall; near N. Y. City (Bt). 



PONTANIA Costa. 

 P. pallicornis Nort. Ft. Lee, folding leaves of smooth-leaved willow 



(Dyar). 

 P. pisum Walsh. Makes a pea-like gall on willow leaves, and surely 



occurs in New Jersey. 



P. hyalina Nort. New Jersey (LT S N M); makes galls on willow leaves. 

 P. robusta Marl. Ft. Lee, folding leaves of poplar (Dyar) ; Clementon 



VI, 9 (Jn). 



P. pomum Walsh. A common gall-maker on bush willow (Bt). 

 P. gracilis Marl. Makes galls on willow leaves in Van Cortland Park 



(Dyar). 

 P. populi Marl. Ft. Lee (Dyar); makes a slight gall, and is a leaf roller 



on "Populus grandidentata" (Dyar). 



P. terminalis Marl. Makes a slight gall, and is a leaf-roller on smooth 

 willow, Van Cortland Park, N. Y. (Dyar). 



CRCESUS Leach. 



9 



C. latitarsus Nort. Jamesburg V, 31 (Coll) ; larva gregarious on birch 

 (Dyar). 



