70 SPECIMENS OF 



resembles some of the smaller yellow-winged forms, 

 such as C. Gracilis, than those of its own group. 

 The type of the genus is the European C. Fraxini, 

 which is represented in the North-American fauna 

 by C. Relicta-, the two agree in the comparative 

 proportion of the body and wings, the body vesti- 

 ture, cut of wing, colour and ornamentation. That 

 they have a common origin is suggested by the 

 survival of a blue edging to the white band in some 

 specimens of C. Relicta. 



43. Catocala Mira. 



This form belongs to the series of Folygama, 

 Gratcegi, and JPretiosa. It is perhaps a little larger, 

 but in colour of primaries nearest to Polygama, 

 from which it differs by the absence of any deter- 

 minate greenish or brown and pale shades on the 

 more uniform fore wings. Tlie lines are more den- 

 ticulate than in the other species. The hind wings 

 are of a deeper, almost orange-yellow, and at base 

 and along internal margin noticeably free from 

 dusky hair and scales. Professor Snow has col- 

 lected this species commonly at Lawrence, Kansas. 



Catocala Mira, Grote, Can. Ent. viii. p, 230. 



44. Catocala Frederici. 



This species has clouded pale greenish-grey fore 

 wings, quite unlike any other described species. 

 The hind wings are largely clear bright yellow. A 

 narrow median black band, tapering inferiorly, and 

 discontinued shortly beyond its inward projection, 

 expiring much before internal margin; terminal 



