TRIFID^. 13 



streaks from the base down the costal and dorsal margins, and 

 below the middle ; near the hind margin is a broad, shining, 

 black band, tinged with a golden gloss, inwardly excavated in 

 the middle, and rather roughly sinuous outwardly ; extreme 

 hind margin and cilia rich yellow. Female very closely 

 similar. 



Underside of the fore wings smoky-brown, paler and tinged 

 with yellow toward the base and margins ; hind wings as on 

 the upper side, except that there is a patch of smoky-brown 

 occupying the apex, below which the black band commences : 

 body and legs whitish-brown. 



Hardly variable, except in the depth of colour of the dark 

 brown transverse shades, which sometimes are scarcely per- 

 ceptible ; and a little in intensity of the black longitudinal 

 shades on the yellow portion of the hind wings. Mr. Eobert 

 Adkin has two specimens, taken at Folkestone, in which these 

 have become conspicuous straight black bars. 



On the wing in July and August. 



Larva stout, rather velvety in texture of the skin, stoutest 

 at the twelfth segment, and rather narrowed toward the head, 

 which is still narrower, rather flat, and extended ; pale drab, 

 with a dark streak down each lobe. General colour yellowish- 

 drab, or very pale yellow-brown, dorsal line whitish, bordered 

 on each side by a brownish or pale purplish-brown subdorsal 

 stripe ; below is a broad, sometimes divided, lateral brownish 

 or purplish-brown stripe edged with whitish ; usual raised 

 spots deep black ; those along the spiracular region rather 

 larger and sometimes connected by a brownish line; under- 

 surface yellowish-grey, legs and prolegs similar, semi-trans- 

 parent and glossy, the latter having, above each, a curved 

 black streak or a pair of dots. 



September to May on grasses and low plants, or in the 

 spring on young shoots of sallow. Not very frequently 

 observed. 



Pupa undescribed. 



