SERICORID.-E—HED YA. 9 



seems limited, but extends to Germany, Corinthia, and the 

 Tyrol. 



6. H. simplana, i^i.st7t.— Expanse \ inch (12 mm.). — 

 Head white; fore wings soft creamy white; basal blotch, 

 costal spot, and apical cilia brown-black, or black. 



Antennas black-brown, faintly barred with white; palpi 

 and head white ; thorax black dasted with white ; abdomen 

 pale brown. Fore wings rather narrow, costa straight, 

 apex bluntly angalated, hind margin curved ; bright white, 

 softly shaded with two clouds of very pale buff; basal blotch 

 deep black, whitened at the extreme base, its outer edge 

 very oblique, and sharply bordered with pure white ; central 

 band only represented by a seT-sii-circular black costal spot, 

 and a few black dorsal dots ; hind margin dotted with deep 

 black ; cilia dark grey. Hind wings and their cilia smoky 

 brown ; legs white. Female similar. 



Underside of the fore wings smoky black, with white 

 costal dots towards the apex. Hind wings leaden white. 



Immediately after emergence from the pupa the white 

 area is beautifully flushed with pink, but this colour soon 

 fades to a mere shade of pale buff. 



On the wing in June. 



Larva apparently undescribed. Said to feed in shoots of 

 Foimlus tremula in July and September ; assuming the pupa 

 state under a turned-down leaf, but Mr. P], R. Bankes states 

 that it is full fed in April or May, and assumes the pupa 

 state among rubbish on the ground. I have no personal 

 knowledge of its habits. 



A very rare and local species here, apparently restricted to 

 Kent and Sussex— except that the late Mr. H. T. Stainton 

 recorded it from Cambridgeshire. Abroad it is found in 

 France, Germany, Switzerland, Holland, Belgium, and 

 Hungary. , 



