n6 REPORT OF NEW JERSEY STATE MUSEUM. 



LONGISTIGMA Wilson. 



L. caryae Harr. Locally common on hickory, walnut, linden, etc., and 

 accused of killing trees in some instances. 



S'ub-family 



CLADOBIUS Koch. (MELANOXANTHUS.) 



C. saliciti Harr. Occurs on willow, poplar, maple, etc.; sometimes com- 

 mon at New Brunswick late in the season, the relatively large winter 

 eggs attracting attention. "Salicicola Uhler" of the last edition is the 

 same. 



CHAITOPHORUS Koch. 



C. aceris Linn. A common species on maple; sometimes seriously in- 

 jurious to Norway maples in early summer. 



C. negundinis Thos. Found infesting box elder. 

 C. pinicolens Fitch. Feeds upon pine. 



C. populifoliae Fitch. On leaves of poplar. The New Jersey species 

 found on poplar have not been determined. 



C. viminalis Monell. On willow, poplar and maple; locally common. 



CALLIPTERUS Koch. 



C. asclepiadis Monell. A common species on milkweeds. 

 C. bell us Walsh. Infests red and other oaks. 

 C. betulaecolens Fitch. A species of wide distribution on birch. 

 C. caryss Monell. Found on hickory and walnut. 

 C. castaneae Fitch. On leaves of the American chestnut. 

 C. discolor Monell. A feeder on oak. There are several species of this 

 genus that occur on oak, and our forms have not been determined. 



C. trifolii Monell. One of the clover-leaf plant-lice. 



C. ulmifolli Monell. On leaves of the American elm. 



MONELLIA Oestl. 

 M. caryella Fitch. A species of wide distribution on hickory. 



DREPANOSIPHUM Koch. 



D. acerifolii Thos. A species of wide distribution on maple; common in 



New Jersey on the soft maple. 



HYALOPTERIS Koch. 



H. arundinis Fab. River Edge, Newark, Vineland (U S Ag) ; a common 

 species on prune and plum. Is the "pruni" of last edition. 



