THE ENTOMOLOGIST. 



471 



Economy of Chalcldim. By Francis Walker, Esq. 

 (Continued from p. 445.) 



CIRKOSPILUS ATTALUS. 



TETEASTICHUS CAUDATUS. 



Tetrastichus and Pteroptrix belong to the Tetrastichidte. 

 In T. caudatus and in a i^w other species of the genus, 

 which is very extensive, the oviduct extends more or less 

 beyond the abdomen. One Tetrastichus is parasitic on some 

 of the inhabitants of oak-apples; another on Hyponomeuta 

 evonyniella; and I lately received from Mr. Rothera a third, 

 reared by him from dwarf rose-galls ; and I have previously 



