6^ TIG MONO TID^E—S TIG MONO TA. 235 



tbe earth. Sorhagen adds Orobus niger, Lathyrus pratensis, 

 and Vicia sepium, and says that it pupates under dry leaves. 



The moth frequents open woods and rough ground where 

 the common bitter-vetch grows in plenty, and flies in a lively 

 manner over this plant in the afternoou sunshine, but is not 

 usually very common; and is generally somewhat local. 

 Found, however, throughout England except the extreme 

 south-west, and in all the Lowlands of Scotland to Perth- 

 shiire and Aberdeenshire. Not recorded in Wales ; and in 

 Ireland only from near Dublin, Kerry, Enniskillen, Sligo, 

 Antrim, and Derry. Abroad it is common through Central 

 Europe, the northern portion of Italy, Russia, Dalmatia, 

 Greece, and Bithynia. 



9. S. pallifrontana, Zell. — Expanse f inch (10 mm.). 

 Fore wings glossy olive-black, with a neat, double, yellow- 

 white dorsal blotch and costal streaks ; face white. 



Antennae black ; palpi and face white ; remainder of head, 

 thorax, and abdomen brown-black. Fore wings rather short 

 and blunt, costa nearly straight, apex rounded, and hind 

 margin rather so ; olive-black, shining ; on the middle of the 

 dorsal margin is an erect and faintly curved dorsal blotch 

 composed of two parallel yellow-white streaks ; on the costa 

 are four pairs of similar short faintly oblique streaks; 

 ocellus suggested by an obscure, curved, lustrous purple 

 streak ; cilia brown. Hind wings dark brown with a reddish 

 gloss ; cilia white. Female similar. 



Undersides of all the wings glossy leaden-black ; costal 

 dots of fore wings white. 



On the wing at the end of May and in June. 



Larva greenish ; head yellow-brown with brown jaws ; 

 dorsal plate slightly orange colour with two, nearly square, 

 dark brown spots; anal segment faintly orange colour; 

 before its transformation, vermillion. (Hofmann.) 



