64 LEPID OP PER A . 



Antennas thick, ciliated, dull brown ; palpi and head pale 

 brown; thorax black-brown dusted Avith white; abdomen 

 o-rey-brown. Fore wings blunt, not broad, the costa gently 

 arched but not folded ; apex bluntly angulated ; white or 

 reddish white, dusted with brown atoms ; basal blotch large, 

 black-brown, its outer edge oblique ; central band broad, 

 rather oblique, olive brown, not sharply defined outside ; a 

 broad olive brown cloud lies across the apical area, and 

 thi-ows off a round spot into the apex ; costa olive brown 

 with four twin white streaks ; cilia white, tipped with grey. 

 Hind wings grey-brown ; cilia white. Female similar or a 

 little darker. 



Underside of the fore wings smoky brown with three 

 white costal dots and a white patch at the anal angle. Hind 

 wings smoky white. 



On the wing at the end of May and in June, and a second 

 generation in July and August. 



Larva rather sluggish, slender, cylindrical, wrinkled, 

 especially so towards the head ; dull bluish green, with 

 slio-htly shining raised dots and very minute hairs ; head 

 shining olive brown ; plates and feet similar but paler ; pro- 

 leo-s bluish green. June and a second generation in August 

 and September in Carclum arvcnsis (common creeping-rooted 

 thistle) in the small side shoots, drawing together the young 

 leaves and eating out the pith and the heart of the shoot, 

 when this is exhausted passing to a fresh shoot. When 

 full fed leaving the plant to spin up in paper or any dry 

 rubbish. 



Pupa very pretty, pale brown with green wing-covers ; in 

 a neat tight cocoon. 



A local species, frequenting thickets of tall common thistles 

 in fields and waste places ; not easily disturbed or induced to 

 fly in the daytime, but very lively on the wing on warm evenings 



