76 LEI'IDOI'TERA. 



Yai'inoiitb, C'aistor, and Hunstanton, Norfolk ; but so far as 

 I know, not elsewhere in the United Kingdom. Abroad it 

 frequents sandy districts inland, as well as on the coast, in 

 Central and South-west Europe, Denmark, and Livonia ; 

 also in Algeria and other parts of Northern Africa. 



2. C. falsellus, ^i-hiff. — Expanse ^ to |inch (ly-2o mm.). 

 Fore wings hardly pointed, white, dusted and shaded with 

 chocolate, and the nervures and transverse lines richly red- 

 brown ; discal stripe and following spot pearly white. Hind 

 wings smoky-white. 



Antennpe simple, slender, dark brown ; palpi moderately 

 long, porrected, pointed and faintly curved down, white ; 

 the maxillary pair tufted with spreading hairs, black at the 

 base, white above ; head white ; thorax white in the middle 

 area, the shoulder-lappets pale yellow-brown ; abdomen 

 slender, brownish-white. Fore wings elongated, moderately 

 narrow ; costa straight from the base, gently arched beyond 

 the middle ; apex angulated, faintly projecting : hind mar- 

 gin straight ; colour white, with the nervures closely streaked 

 with rich golden-brown ; from the base a pearly-white longi- 

 tudinal stripe, forked near its apex, extends to about the 

 middle of the wing ; immediately beyond it a thickening of 

 the brown streaks makes a sort of angulated transverse band, 

 bounded outwardly by a similar band of the white ground 

 colour much broken by the dark lines; of these, three in the 

 middle are blackened ; toward the apex is a small sharply 

 defined pearly-white spot, and another, larger, lies above the 

 anal angle ; hind margin edged by a double black line ; cilia 

 golden-brown spotted with white. Hind wings ample, 

 rounded behind, pale smoky brown. Female often whiter 

 from more slender brown lines, otherwise similar. 



Underside of the fore wings pale smoky brown, with 

 pearly dashes toward the apex. Hind wings smoky white. 

 l?ody and legs whitish-brown. 

 On the wing in Julv and August. 



