84 LEPIDOPTERA. 



Antenna; of the male rather thick, simple, dark brown ; 

 palpi straight, similar iu colour ; maxillary pair small; head 

 dull brown ; thorax bronzy-brown ; abdomen glossy mouse- 

 colour. Fore wings elongated ; costa very faintly arched, 

 almost straight; apex squared or faintly pointed; hind 

 margin nearly straight and rather perpendicular ; colour 

 dark golden-brown, darker toward the costa ; longitudinal 

 stripe single and without fork, but pointed and cut off from 

 a quite similar extension which is on a very slightly lower 

 level ; above and below this the parallel black-brown lines 

 are quite visible on the nervures ; along the dorsal margin is 

 usually a narrow white stripe ; beyond the extended median 

 white stripe is a curved and bent transverse line of silvery 

 dusting edged by brown lines, and just before it a faint 

 partially parallel streak from the costa ; a white wedge- 

 shaped spot at the apex is cut oif from the hind margin by 

 a black line, and below this are five marginal black dots ; 

 cilia dusky greyish-white. Hind wings ample, rounded 

 behind ; smoky brown, darker toward the margin ; cilia 

 dusky white. Female similar or paler. 



Underside of the fore wings smoky brown, whiter along 

 the hind margin. Hind wings white with the anterior 

 nervures brown. Body and legs brown. 



On the wing from the end of June till the beginning of 

 August. 



Larva and Plpa unknown. 



This species is found with us only on heaths and moors iu 

 mountain districts. Mr. Herbert Goss has found it flying 

 plentifully at an altitude of 2000 to 230u feet above seu- 

 level. It sits upon the heather and the plants which grow 

 among it, and rises readily at the footstep of an intruder iu 

 the daytime. At dusk it flies of its own accord. In this 

 country it seems as yet only to have been found in Cunibei- 

 land — on Horton, Great Gable, and mountains in the Kes- 

 wick district. It may very rea^o;iably be expected also to 



