SCOPARIJD.-E—SCOPARIA. 337 



within ; head and thorax brownish-drab, the latter rather 

 robust ; abdomen somewhat thick, yellowish-grey. For^ 

 wings elongated, narrow at the base, steadily broadening to a 

 well-developed outer area ; costa nearly straight till far 

 beyond the middle, then somewhat arched ; apex bluntly 

 angulated ; hind margin a very little oblique, hardly curved, 

 and the anal angle very definite ; shining greyish-white ; the 

 markings obscure ; first line very erect, but a mere brown 

 shade almost broken at the claviform stigma, which is short, 

 thick, and dull black ; orbicular stigma decidedly ovate. 

 edged with black, from which a streak is thrown off t" 

 connect it with the reniform ; this last is faintly brown, 

 with a black ring, from which minute claws stand off at the 

 base ; second line a series of small brown wedges edged 011 

 the outside by a whitish stripe, and this by a brown shade or 

 pair of clouds containing blacker streaks ; hind margin 

 edged with black dots, from which tiny dashes point inwards; 

 cilia shining whitish-grey. Hind wings long and very ample, 

 rounded behind ; shining smokj^ brownish-white or smoke 

 colour ; cilia concolorous. Female more stiff in appearance. 

 the thorax thicker, the abdomen still more so, and looking 

 really clumsy ; the fore wings smaller, narrower, and rather 

 more grey in colour. 



Undersides of all the wings shining smoky yellowish- 

 white, without markings. Body and legs very pale brown. 



Usually only a little variable in the shade of ground 

 colour, or the distinctness of the markings ; but among 

 specimens from the Shetland Isles are two beautiful forms — 

 one having the middle area of the wing as usual, but the 

 basal and hind marginal areas quite white ; the other normal 

 except a broad even white stripe before the hind margin. 

 The sexes are so different that the larger specimens of the 

 male have long been supposed to represent a distinct species 

 under the name of gracikdis. This, however, is cleai'ly a 

 form of the present. There is reason to believe that increased 

 size is caused in this species by rigour of climate. Very fine 



VOL. IX. Y 



