6 LEPIDOPTERA. 



Dorset, Somerset, Gloucestershire, Herefordshire, Cambs, 

 Essex, Suffolk, Norfolk, and Herts ; also found rarely in 

 Cheshire, Lancashire, and Durham. These are, so far as I 

 know, its limits in the United Kingdom. Abroad it is found 

 throughout Central Europe, and in Sardinia, Spain, and 

 Norway. 



4. H. dealbana, Frol.; incarnana, Hcuv. (?). — Expanse 

 ^ inch (12 mm.). Head yellow-brown, with white palpi; 

 fore wings rather narrow, white ; basal blotch sharply angu- 

 lated, black -brown, followed by a faint brownish oblique 

 central band, and a brown spot in the apex. 



AntennEe brown ; palpi and lower part of the face white, 

 head yellow-brown ; thorax black-brown dusted with white ; 

 abdomen grey-brown. Fore wings rather narrow, costa 

 very little arched, apex rather pointed ; white faintly 

 shaded with yellow-brown and grey ; basal blotch black- 

 brown, dusted with orange and silvery blue, its edge strongly 

 angulated ; central band a mere shade of grey or orange- 

 brown dusting ; hinder area similar with an orange-brown 

 spot at the tip ; cilia brownish grey. Hind wings and their 

 cilia smoky brown. Female similar. 



Underside of the fore wings shining leaden black, with 

 white costal dots. Hind wings leaden white. 



There is constant variation, in both sexes, in the ground 

 colour, and in the depth and brightness of the markings ; 

 very often the whole ground colour is obscured by shading of 

 slate-grey, or of dark brown, or black, the markings being 

 then also often obscured. 



On the wing at the end of June, and in July. 



Larva rather short, tapering at both ends but more especi- 

 ally behind ; semi-transparent, very pale yellowish green ; 

 raised dots rather inconspicuous, pale brown ; head small and 

 pointed, shining black, as also is the dorsal plate ; anal plate 

 light brown ; legs black. (Dr. J. H. Wood.) 



