134 LEPWOPTERA. 



Uuderaide of the fore wings smoky reddish-brown, with 

 the costa dull yellow. Hind wings white, shaded with 

 smoky brown. In the female the fore wings are nearly 

 white. Body brownish-white. 



On the wing in June and July, and specimens of — appa- 

 rently — -a partial second generation have been taken near 

 the end of August. 



Larva five-eighths of an inch long, slender, the head 

 smaller than the second segment, polished, reddish-brown, 

 with the mouth, ocelli, and a lateral streak black ; dorsal 

 plate shiny reddish-brown, with a darker front margin, and 

 a cream-coloured partial dividing line, which has on either 

 side a short brown curved mark on the hind margin ; the 

 cream colour extends I'ound the edge of this plate except in 

 front ; colour of the body above dingy olive-brown ; darker 

 on the lateral fold ; undersurface and legs paler ; dorsal 

 stripe faintly darker brown. When first hatched, dingy 

 blackish-green, with black head and dorsal plate. (W. 

 Buckler — condensed.) 



July, also apparently from September till the spring, in 

 two generations ; but this is not fully worked out. On (Jurex 

 — the species not stated — inhabiting the stems above the 

 root. Heinemann says that it feeds in reed-stems. 



Pupa apparently undescribed. 



This species is rarely, if ever, seen in the daytime, when 

 doubtless it hides in the thick growth of the feu near the 

 ground. On one or two occasions I found it fluttering up 

 from among the shorter growth of reed, Schcenus, and Juncus, 

 at from six till eight p.m., and continuing, with the same 

 weak fluttering action, to buzz about these plants in large 

 numbers ; but as the surface of the fen was then ankle-deep 

 in water, they were probably disturbed before their natural 

 hour of flight. This, under ordinary circumstances, is at 

 early dusk, and the flight is then also gentle and weak, over 



