28o LEPIDOPTERA. 



shorter tlian in the preceding species, and apes less pointed ; 

 hind margin slightly, but regularly, rounded. Hind wings 

 with both angles somewhat squared, and the hind margin, 

 though partly rounded, slightly hollowed before the anal 

 angle. Glossy fulvous, with the nervures darker and 

 blackened towards the margins ; costa of fore wings naiTOwly 

 black ; dorsal margin clouded with grej^ ; hind margin, and 

 also the margins of the hind wings, bordered with black, 

 which is slightly shaded inwards, sometimes more broadly 

 so, especially in the hind wings ; cilia yellowish white. In 

 the male a short black longitudinal streak arises from the 

 dorsal margin of the fore wings near the base and passes 

 towards the middle of the wing, running parallel with the 

 median nervure, where the latter bounds the discal cell, but 

 not crossing it. This black streak is hardly oblique, but is 

 broken by the sub-dorsal nervure into two parts, the second 

 of which is nearly prostrate ; it is sometimes in part obscured 

 by raised fulvous scales, which, however, are not so densely 

 rowded on its margin as in the previous species. 



Under side of fore wings fulvous with a large clouded 

 blackish patch at the base and along the dorsal margin ; hind 

 margin and apex dull yellowish ; hind wings pale greyish 

 yellow, slightly tinged with fulvous at the base and near the 

 anal angle. Cilia of all the wings broadly yellowish white. 



Antenna3 blunt, dark brown or blackish above, barred or 

 annulated with fulvous ; pale yellow beneath, but with the 

 apical half of the club sharply and distinctly black on the 

 under side. This, with the more prostrate and broken black 

 streak in the fore wings of the male, the shorter wings, and 

 blacker margins, distinguishes it from the preceding sj)ecies. 



There is considerable variation in the breadth and intensity 

 of the dark borders of the wings, and especially in the dai'kness 

 of the nervures ; also occasionally in the ground colour, a yel- 

 lowish or straw-coloured form being not very rare ; and one of 

 a silvery white was taken by Mr. H. W. Vivian at Wicken fen. 



On the wing in July and August. 



