144 THE CANADIAN ENTOMOLOGIST. 



Dr. Hagen for the ability to make the following corrections and identi- 

 fications, which I was unable to make from the published descriptions of 

 Professors Zeller and Frey alone. Dr. Hagen has submitted to' my 

 examination some of the type specimens of those authors in the Collection 

 of the Museum at Cambridge, and from them I am enabled to make the 

 corrections noted below. There still remain a few of the species of Pro- 

 fessors Zeller and Frey which I have not seen, but as types of more than 

 three hundred of the species described by me are in the Museum, which 

 I believe also contains type's of the greater number of American species 

 described by Frey and Zeller, the species may be readily determined by 

 any one having access to the Collection. 



Argyresthia quercicalella Cham. 



From Colorado. Previously described by Zeller from Texas specimens 

 as A. abdominalis. 



Batrachedra Clemen sella Cham. 



From Kentucky and Colorado. Previously described from Texas by 

 Zeller as B. slriolata. In Bui. Geo. Survey, v. 3, pp_. [34 and 141, I at 

 first confounded it with B. prceaugusta; whilst the true prceaugusta, then 

 first discovered in America, was described as a new species under the 

 name B. Clemenselld. Afterwards, when the supposed new species was 

 discovered to be prceaugusta, the name Clcnicnsclla was transferred to the 

 species which had been erroneously supposed to be pneaugusia, and 

 which is the striolata of Zeller. I have not seen any authenticated speci- 

 mens of B. salicipomoiiella Clem., but I suspect it is at most only a variety 

 of prceaugusta. 



Lithocolletis Hagcui Frey & Boll. 



In my account of L. nccopinusclla I suggested that it might prove to 

 be L. Hageni F. & B., and so it turns out on examination of a type speci- 

 men of the latter species. 



Lithocolletis gemmea F. & B. 



With a doubt indicated by a mark of interrogation, Messrs. F. & B. 

 identify this species with Parectopa robiniella Clem. Misled by this identi- 

 fication, T, in the Cin. Quar. Jour. Sci., vi., p. 209, made some comments 

 on its transference from Parectopa to Lithocolletis by Messrs. F. & B.,and 

 asserted what is unquestionably a fact, that P. robiniella Clem, is not a 



