308 



single specimen mentioned in Grinnell's description of bcrnardinus and 

 named fiititimus was found to be without a label in the Grinnell col- 

 lection, though placed in the series of bernardinus. We labelled this 

 specimen type. It was so badly rubbed that comparison was difficult, 

 but left no doubt that it is the same as the species figured by Walsing- 

 ham under the name dclawaricus. As to the identity of the eastern and 

 western insects, we have felt some doubt. We have only two speci- 

 mens from the east, both taken at Essex Co. Park, N. J., by W. D. 

 Kearfott, June 30 and July 15. One is a male, and we are unable to 

 find specific differences between its genitalia and those of western 

 specimens. Our western series, including eleven specimens, comes 

 from British Columbia and Washington. These specimens are, on 

 the whole, larger and brighter than the two from New Jersey, but 

 in the Fernald collection we find these conditions reversed. We are 

 therefore disposed to believe that Walsingham and Zeller were right 

 in their reference of the Californian species to delaiivricits. It is quite 

 likely that the species will be found in intervening territory, either in 

 the States or in a northward curve in Canada, to connect the isolated 

 localities which we are now able to give. 



Dyar's notes on the early stages are puzzling to us, and we believe 

 that they cannot refer to the true dclawaricus. Our notes on the 

 National Museum material do not mention his specimens in detail, 

 but record no true dchri^'aricns. All Colorado specimens which we 

 listed were tcnuidactylits. .Since dclawaricus has tufted palpi and weak 

 genitalia, we should expect its early stages to be decidedly ditlerent 

 from pcriscclidactylus, which belongs in the other group, and think 

 that Dyar's notes refer either to raptor or another species. His re- 

 marks on the adult suggest pcriscclidactylus, though he makes them 

 in contrasting with that species. 



We have examinetl several European species belonging to this 

 group and concluded that dclaicaricns is distinct from them. 



Genus Platyptilia Huebner. 



Logotype Aluciia gonodactyla D. & S. 



Phityflilia Huebner, Verz. bek. Schmett. 429, 1826. 

 Meyrick, Trans. Ent. Soc. Lond. 9, 1886. 

 Id., op. cit. 485, 1890. 

 Fernald, Smith's List Lep. N. A. 87, 1891. 



