CATALOGUE OF INSECTS. 607 



C. pectinicornis Fourc. = isomera Nort. The larva is general on roses : 

 the Spring rose saw-fly (Dyar). 



PRIOPHORTJS Dahlb. 

 P. aequalis Nort. Connecticut (Cress). 



Sub-family II NEMATIN^!. 



GYMNONYOHUS Marlatt. 



G-. appendiculatus Hartig. = grossularise Walsh. This is the gooseberry 

 saw-fly, and is sometimes locally common. 



PACHYNEMATUS Konow. 



P. affinis Marl. Larva on grass : Greenwood Lake (Joutel). 

 P. cornig'er Nort. "New Jersey" (Cress Coll). 



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

 eastern United States" (Marlatt). 



PRISTIPHORA Lata:. 



P. idiota Nort. = identidem Nort. The larva is said to be an " important 

 enemy to the cranberry," and this is probably the species that is occa- 

 sionally found in Atlantic county. 



P. tibialis Nort. Long Island (Ashm). 



P. sycophanta Walsh. Larva on willow, birch, Vacciuium, &c. (Dyar). 



P. banksi Marl. Del. Water Gap, VII, 7, Clementon, V, 16, Atco, VI, 13 (Jn). 



MICRONEMATUS Konow. 

 M. gregarius Marl. Englewood, on smooth-leaf willow (Dyar). 



EUTJRA Newm. 



E. orbitalis Nort. These species are gall-makers on willow (Dyar). 



E. salicis-nodum Walsh. " United States " (Cress). 



E. salicis-ovum Walsh. Gall on stems, not common (Bt). 



PONTANIA Costa. 



P. pallicomis Nort. Ft. Lee, on smooth-leaf willow, folding the leaves 



(Dyar). 

 P. robusta Marl. Ft. Lee, on poplar, folding the leaf (Dyar), Clementon, V, 



9, 16 (Jn). 

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

 P. pomum Walsh. Gall-maker on bush willow, common (Bt). 

 P. hyalina Nort. Makes galls on willow leaves, " New Jersey " (U S N M). 



