NOTKS, CAPTUUES, ETC. 209 



^ uiiglit settle the question. Mr. Bassett, with the assistance 

 of Mr. Riley, has bred C. operator, O. S., from the woolly 

 bud galls of the shrub oak {Qiierciis ilici/olia), and from the 

 acorn-cup galls on the same tree. Should the flies bred 

 from these two galls be specifically identical, of which, 

 however, I think there is great doubt, it would revolutionise 

 many ideas of gall-history as now understood ; one of general 

 application being, as mentioned above, the constancy of the 

 production. For further information on the double-brooded 

 theory Mr. Bassett's paper must be consulted (Can. Ent. v. 

 91) ; it is shortly to be enlarged upon, giving the results 

 of four years' further observation. To return to the question 

 of parasitism : — In addition to the Synergi and Torymidce we 

 have a Euryloma and Pteromalus: the former is bred much 

 more frequently than the latter; however, both occur later 

 than the other inmates, ihe Euryloma generally appearing to 

 the end of July. Zeirapliera commnnana was bred from this 

 gall by Mr. C. G. Barrett: this is a Torlrix which frequently 

 lives in the common oak-apple (see Entom. ix. 40). 



This season two or three valued correspondents, as well as 

 myself, have endeavoured to throw further light on the life- 

 history of this species, but with very limited, if any, success; 

 one fact noticed has been its relative scarceness this year. 

 However, Dr. Adler, of Schleswig, is said to have "proved" the 

 metagenesis theory to hold in CynipidcB ; but I prefer to 

 leave the above as written some time since, and wait for 

 further information on so important a discovery. If Neuro- 

 terus lenticularis is but a " forme transitoire" of Spaihegaster 

 baccarnm, it surely should not be difficult of direct proof. 

 From a life-history point of view, as at present followed out, 

 it certainly is possible. — E. A. Fitch. 



ENTOMOLOGICAL NOTES, CAPTURES, &c. 



Additional Notes on Colias Edusa. — Below are further 

 records of the abnormal occurrence of Colias Edusa during 

 last June in the following additional localities: — 



Suffolk.— Many specimens near Ipswich ; H. Miller, jun. 



Middlesex. — Upwards of thirty, many in splendid condi- 

 tion ; W. J. Vandenburgh. 



2f 



