THE ENTOMOLOGIST. 



No. Ill] DECEMBER, MDCCCLXXII. [Price 6cI. 



Economy of Chalcidioc. By Francis Walker, Esq. 



(Continued from p. 227.) 



EUPELMUS DEGEEEI. 



This fly has a range from Italy lo Sweden, where it was 

 first described by Degeer, whose name it bears, and there is 

 matter for discovery in the habits of life of it and its asso- 

 ciates. Of the latter the first is the Cynips of Potentilla 

 reptans, a maker of galls on this plant. The second is 

 Torymus globiceps, Nees, first noticed by Degeer, who 

 reared it and the gall-maker from the same gall, and observed 

 that the Torymus grub spared the Cynips grub, whereby it 



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