168 CATALOGUE OF MOTHS. 



Mr. Backhouse took it at Shotley ; Mr. Sang in Castle Eden 

 Dene. Meyrick gives the imago as being out during August and 

 September, Stainton during September and October; but the 

 latter especially mentions in the "Manual'' its occurrence at 

 Newcastle-on-Tyne in July, which is also the time of its 

 appearance in Hezleden Dene, where it is very common. Mr. 

 Bankes has taken it at the end of August both in Hawthorn 

 Dene and not uncommonly in Castle Eden Dene. 



YPSOLOPHUS, Fab. 



171. Ypsolophus marginellus, Fab. 



Ypsolophus marginellus. Staint. Man., vol. ii., p. 350. 

 ,, ,, Meyr. Hdbk. Brit. Lep., p. 608. 



A local species. The " Manual " gives but two places where 

 half a century ago it was known to occur, one of which is 

 Newcastle-on-Tyne. Meyrick's Handbook gives its range as 

 covering Northumberland, viz., " Lancashire to Northumber- 

 land." Doubtless, however, Meyrick mei'ely copied Stainton, 

 and entered it in this way for want of a Durham record, but 

 it is quite likely that the specimens in question were taken in 

 Durham. I have no other notice of its occurrence. 



PLEUROTA, Hub. 



172. Pleurota bicostella, CI. 



Pleurota bicostella. Staint. Man., vol. ii., p. 352. 

 ,, ,, Meyr. Hdbk. Brit. Lep., p. 614. 



Rather common among heather, and generally plentiful on 

 moors and heaths. It is given in the " Manual" as occurring 

 regularly at Newcastle-on-Tyne ; this of course refers to some 

 of the moors near, perhaps Greenleighton Moor, where Mr. 

 Finlay found bicostella very abundant. In Durham it also 

 occurs on the higlier moors. Mr. Sang took it at High Force 

 in 1874, and Mr. Gardner has more recently met with it in the 

 same district, Mr. Backhouse took it at St. John's. 



