516 STATE BOARD OF AGRICULTURE. 



Sub-family IV RHOPALIN^. 



RHOPALUM Kirby. 



R. pedicellatum Pack. Gloucester Co., IX, 7, Riverton, V, 30 (Viereck). 

 R. rufigaster Pack. " New Jersey " (Ashm). 



Family XVII PEMPHREDONIDiE. 



Usually slender, rather small wasps, shining black in color. They burrow in 

 the pith of dry branches, making very irregular and complicated channels : 

 the cells are stored with plant-lice. 



Sub-family I PEMPHRKDONIN.33. 



SPILOMENA Shuck. 

 S. pusilla Say. New Jersey, probably. 



STIG-MUS Jur. 



S. americanus Pack. Camden Co., VI, 28 (Fox). 

 S. fraternus Say. New Jersey, probably. 



CEMONTJS Jur. 



G. inornatus Pack. "New Jersey" (Cress Coll), Flatbush, Long Island 

 (Zabriskie). 



PEMPHREDON Latr. 



P. concolor Say. Camden Co., VII, 27 (Fox). 



PASSALCECTJS Shuck. 



P. annulatus Say. Camden Co., VII, 28, Philadelphia, VII, 14 (Fox). 

 P. mandibularis Cress. Northern New Jersey (Ashm). 



Sub-family II PSENIN^}. 



PSEN Latr. 



P. cressonii Pack. Camden Co., IX, 7 (Fox). 

 P. denticulata Pack. Camden Co., IX, 7 (Fox). 

 P. kohlii Fox. Should occur in New Jersey. 

 P. leucopus Say. Should occur in New Jersey. 

 P. mellipes Say. New Jersey, probably. 



