194 ENTOMOLOGICAL SOCIETY 



only differs from the genus in having veins 7 and S in the fore 

 wings stalked. It is also true of oregonella Walsingham, of 

 which only the single type in Lord Walsingham's possession is 

 known, but which will probably be found not to belong to In- 

 curvaria when additional material is at hand. 



Of the other species hitherto placed in Incurvaria, two have 

 now been disposed of, namely, Eudarcia russatella and Brack- 

 enridgia acerifoliella. The remaining three species form a' 

 separate genus, which may appropriately be known as Greya in 

 honor of Lord T. de Grey Walsingham, who has added so mate 

 rially to our knowledge of American Tineina, and who has de 

 scribed all the three species included in the genus, namely, humi- 

 lis,* punctiferella, and solenobiella.^ Greya is at once distin 

 guished from the nearly related Incurvana by the absence of 

 vein 10 in the fore wings. 



It has the following venation : 



Fore wings n veins, vein 10 absent, all separate; hind wings as broad 

 as fore wings, 8 veins, all separate. Other characters as in Incurvaria. 



Authentic representatives of all of the foregoing species except 

 labradoriella are in the U. S. National Museum. 



Plutella vigilaciella Clemens. 



One type in good condition, Clemens' No. 41 ; alar exp., 

 14.5 mm. 



This is, as determined by Stainton,a synonym of the European 

 Plutella porrectella Linna3us. Specimens compared with 

 Clemens' type are in the U. S. National Museum. 



Plutella limbipennella Clemens. 



One type, Clemens' No. 42 ; alar exp., 13.5 mm. 



This is, as determined by Stainton, a synonym of the cosmo 

 politan Plutella cruciferarum Zeller, now known as Plutella 

 maculipennis Curtis. 



Plutella mollipedella Clemens. 



One type, Clemens' No. 43 ; alar exp., 14 mm. 



This is, as shown by Stainton, the female of the foregoing 

 species. 



Gracilaria superbifrontella Clemens. 



One type in fine condition, but lacking the left wings, Clemens' 

 No. 44 ; alar exp., 14 mm. 



In spite of Clemens' definite statement that his species feeds 

 on witch hazel (ffamamells virginica}^ Lord Walsingham has 

 made it synonymous with the European oak-feeding Gracilaria 



*Ins. Life i, pp. 145, 146, 1888. 



t Proc. Zool. Soc. Lond., p. 82, 1880. 



