298 



Mosher, Class. Lep. Pupae 70, 1916. 



Barnes & McDunnough, Check List ISO, 1917. 

 Cappcria Tutt, Ent. Rec. XVII, 37, 1905. Orthotype heterodactyla de Vill. 

 Geina Tutt, Brit. Lep. V, 411, 1906. Orthotype didactylus Linn. 

 Crombrugghia Tutt, op. cit. 449, 1906. Orthotype distans Zell. 



Forehead smooth, witliout tuft in our species: oceUi obsolete. Labial 

 palpi moderate, oblique; second joint with a ventral apical tuft in only one 

 North American species; third joint moderate. Tibiae thickened with scales 

 at bases of spurs. Primaries bifid, cleft from about middle; M,, and Cu^ stalked, 

 connate with Cu^ ; R^^ from below angle of cell, R., and R^ stalked with R^ or 

 R. and R coincident; Rj free. Secondaries trifid, third segment with a well 

 developed tuft of black scales in the fringes of the inner margin: Cu„ from 

 middle of cell; Cu^ from near angle; R. to apex. (See pi. XLVIII, fig. 2.) 



Although the type of Pterophorus was fixed as didactyla in 1810, 

 no subsequent writer with whose work we are famiHar has recognized 

 the genus as identical with Oxyptihis Zell. The attempt of Lord 

 Walsingham and Mr. Durrant (Ent. Mo. Mag. XXIII, 41, 1897) to 

 fix the type of Alucita Linn, gives us the first summary by modern 

 writers of the history of Pterophorus. In this suminary it is stated 

 that Lamarck (Syst. An. sans Vert. 288, 1801) fixed the type as 

 pentadactylus. The International Rules do not permit us to recognize 

 this fixation, which is thrown out by Walsingham and Durrant for 

 other reasons. Latreille's citation of didactylus is overlooked, appar- 

 ently because it has no bearing on Alucita. On p. 42 we find the state- 

 ment that Wallengren (Skand. Fjar. 20, 1859) "cited monodactylus 

 Linn, as the type of Pterophorus (Geoffr.) auct." The authors accept 

 this as the true type of Pterophorus on the basis that didactylus Geofif. 

 was an incorrect identification of monodactylus Linn. Opinion 14 of 

 the International Rules deals with a similar case and thereby validates 

 the acceptance of didactylus Linn, as type of Pterophorus Geoflf. The 

 genus has commonly been used as limited by Walsingham and Dur- 

 rant, but Mr. J. W. Tutt (Ent. Rec. XVII, 35, 1905) claims that 

 Geoffrey himself fixed the type as pentadactyla Linn. We think that 

 no other writer has taken this view of Geoffrey's work, though some 

 have accepted pentadactyla as type of this genus through Lamarck's 

 supposed fixation. Curtis (Brit. Ent., Lep. I, 161, 1827) actually 

 cited this species as type but his action was rendered invalid by that 

 of Latreille. 



We follow Meyrick's synonymy. Geina Tutt is, of course, a syno- 

 nym of Pterophorus. We are not familiar with the types of Capperia 



