418 
THE ENTOMOLOGIST. 
Economy of Chalcidice. By Francis Walker, Esq. 
Continued from p. 399.) 
These figures illustrate three families of Chalcidiae :— 
Pteromaliclae, Eunotidae, and Eulopliidae. Etroxys connects 
the Pteromalidae with the Cleonymidae, by means of Trigono- 
derus : the species of the latter genus are of comparatively 
ETROXYS SCENICUS. 
EUNOTUS CEETACEUS. 
large size and rare occurrence; they may be sometimes found 
in herbage beneath old trees, and are parasitic on wood¬ 
feeding insects, and the lanceolate abdomen of the female is 
adapted for insertion into holes made by these insects, and 
in an exotic genus of the family is more particularly suited 
for this purpose, being supplied with a very long oviduct. 
The insect in the lower figure appears to be very rare; 
