SERICORID.£—ORTHOT.£NIA. 31 



Germany, Switzerland, Carinthia, the Tyrol, Norway, Lap- 

 land, and Western Russia, 



8. O. mygindana, Schiff. ; flammeana, Frol. ; fulvi- 

 punctana, R(iw.{?). — Expanse | to' f inch (15-18 mm.). 

 Fore wings long, shining, ashy purple with a thick latticing 

 and dusting of deep purple-red. Female decidedly smaller, 

 with narrower wings. 



Antennas ciliated, smoky black ; palpi, head, and thorax 

 dark purple-brown ; abdomen silvery brown. Fore wings 

 elongated, costa faintly arched, apex sharply angulated, 

 yet the extreme tips rounded ; hind margin oblique ; silvery 

 or ashy purple, abundantly latticed and clouded with rich 

 deep purple-crimson; markings faint or absent; central 

 band, when visible, oblique, narrow, and obscure, deep 

 purple or blackish-purple ; beyond this the nervules are 

 much streaked with the same ; cilia purple. Hind wings 

 and their cilia smoke-colour. Female smaller — often 

 decidedly so — with narrower fore wings ; and the hind 

 wings darker. 



Underside of the fore wings pale, smoky, purplish-brown. 

 Hind wings leaden-white. 



On the wing in June and July. 



Larva fleshy, dark red, head shining black, (Wilkin- 

 son.) 



April to June, on Vaccinium vitis-idwa, V. myrtillus, 

 Myrica gale, and ArctostcqjJiylos uva-ursi, drawing together 

 the leaves of a terminal shoot, eating out the heart, and also 

 the parenchyma of the leaves. 



Pupa shining chestnut-brown, abdomen paler. 



The moth flies in hot afternoon sunshine about Vaccinium 

 and its other food-plants in moorland and mountain districts, 

 usually confining itself to the higher parts of the hills, 

 though common among Vaccinium in the mosses of Cheshire 



