96 LEPIDOI'TERA. 



regularly widening, pearly-white with a dark edging, and so 

 cut off obliquely with dark brown just beyond the middle as 

 to form a long triangle followed by a large rhomboid ; from 

 the distinct black edge of the latter a cloud of black dusting 

 is thrown off toward the hind margin ; this la>it is edged 

 with a black line, and with black dots, or minute crescents, 

 at the tips of the nervures ; cilia shining golden black- 

 brown. Hind wings ample, rounded behind, smoky brown ; 

 the nervures a little darker; cilia shining whitish-brown. 

 Female similar. 



Underside of the fore wings pale chestnut, or yellow- 

 brown, with a smoky clouding. Hind wings smoky white, 

 with a slender faint smoky transverse line before the hind 

 margin. Body and legs white. 



On the wing in July and August ; also somftimes in 

 September, possibly as a partial second generation. 



Lakva slender, cylindrical, almost uniform in size through- 

 out ; the skin of a dingj^ reddish-slate colour, is smooth, but 

 not shining ; head, dorsal, and anal plates, and raised dots, 

 jet black and very highly polished, each of the latter furnished 

 with a fine blackish hair ; spiracles small, round, and black. 

 (W. Buckler.) 



August till June on Aira c(c--iintom and other grasses, also 

 on Ei-iophoruiii caginatum ; feeding on the lower )iortions of 

 the grass stalks, living in small silken tubes, placed vertically 

 among grasses in the dense tufts. 



Pupa moderately stout, the wing cases long in proportion, 

 the skin smooth and polished ; of a cinnamon-ljrown colour. 

 Within a sheath of grass in a neat little chamber, smoothly 

 lined with white silk, and covered outside with particles of 

 gnawed grass. (W. B.) 



This moth differs from the allied species in that it seems 

 rarely to sit on, or among, grasses ; and also in living in 

 very small numbers, scattered about, rather than in multitudes 



