THE ENTOMOLOGIST. 67 



antennis alisqne haustis proxime conjunctum videtur. Sed 

 vitaj ratio Cynipluim potius est, quibus Eucharide genere 

 medio conciliatur, neqiie errabit, qui, utriusque ordinis, 

 Cynipbuiu ct Pteroraalinoruin inquarn, novo certiorique 

 charactere invento, Eurytomas Cyniphibus restituet." 



He gives to the genus the character of a gall-maker, and 

 then mentions the exceptions observed by him, which do not 

 apply to Eurytoma as now restricted, and he has no suspicions 

 that the latter is a parasite. Several species in the genera of 

 this family have such a close mutual resemblance that the 

 names of the earliest authors cannot be referred to them 



NOTASPIS KORMICIFOEMIS. 



individually with certainty. The question of synonyms 

 veould occupy a vast number of pages, and the few words 

 about it here are merely in reference to the parasitism. The 

 species which Nees describes as Eurytoma plumala, Rossi, 

 seems to be one that has not been found in England. He 

 says thatitinhabits a gall, — woody, many-chambered, rounded, 

 attenuated at each end, — in the stalks of Serratula arvensis ; 

 and in another place he mentions, as a synonym of it, 

 E. serratulai, Bouch^, which destroys a beneficial insect, 

 Microgaster Liparidis. His description of E. Abrotani, 

 Illiger, probably refers to the species for which I have adopted 

 the name E. plumata, and is the thistle-gall — Eurytoma, 

 which extends to North Africa; but in another place he says 

 that E. Abrotani inhabits the galls of his Cynips Potenlillae ; 

 and his second description certainly does not refer to the 



