TRIFID^. 8.3 



in Dr. Mason's collection is of unusually large size ; its I'ore 

 wings deep rosy-purple tinged with brown and grey, the 

 clouding before the hind margin forms a conspicuous dark 

 purple band, and the stigmata are both distinctly pale ; its 

 hind wings are also strongly clouded with grey-brown before 

 the hind margin. 



The rosy-purple or purple-brown colour seems to be a 

 characteristic of British specimens ; those obtained from 

 Livonia and Finland, where the species still occurs, being of 

 a pale lilac-grey or purplish-grey, sometimes almost tinged 

 with bluish, hence the varietal name suh-ccerulea, Staud. 



Formerly on the wing at the end of July and in August. 



Larva very pretty; greyish flesh-colour, striated and 

 marbled with brown, with the vascular (dorsal) and subdorsal 

 lines somewhat large, clearly defined, continuous, straight, 

 and of a citron yellow speckled with brown, the latter speckled 

 on the lower part with reddish-yellow ; the stigmatal (spira- 

 cular) line is very large, of a pale sulphur-yellow, and sur- 

 mounts a deep brown ventral band ; stigmata (spiracles) 

 brown ; head concolorous, with two dark marks. (Guenee.) 



By great good fortune this description was noted down by 

 M. Guenee from larvse sent to him about fifty years ago, by 

 the late Mr. H. Doubleday, otherwise it is doubtful whether 

 any record of their appearance would have been preserved. 

 Mr. Doubleday added that this larva very closely resembled 

 that of Hadena pisi. A full description has been given by 

 Herr Carl Berg of the larva of the variety of this species 

 which is found in Finland, from examples found by himself 

 near Riga. His diagnosis is " grey-brown with a tinge of 

 violet ; three pale violet-grey dorsal lines, and one sub-dorsal 

 line of the same colour ; spiracular line sulphur-coloured ; 

 head chestnut-brown ; second segment ferruginous ; anal 

 segment violet-grey ; legs cinnamon coloured." His full 

 description is too long for transcription here. 



May, June, but doubtless from September, and hibernating 



