THE ENTOMOLOGIST. 



17 



Economy of Eurylomidce. — The Eurytoraicla?, by late 

 observations on their history, have become tlie most interest- 

 ing of all the Chalcidiae. The latter, like the Ichneumonidae 

 and the allied tribes, are termed parasitic, but the EurytomidaB 



ISOSOMA FLAVICOLLIS. 



EHRYTOMA PLATYPTEEA. 



have been discovered, in several instances, to be herbivorous, 

 and the attraction which they have on that account is 

 increased by the uncertainty which remains, as to whether 

 they are wholly herbivorous, or partly or occasionally 



c 2 



