4 
the side line grey ; the divisions between the segments 
whitish. 
The date of the appearance of the caterpillar is in 
July and August. 
It feeds on the Hawkweed (Hieracium pilosella ) and 
the Sow-thistle (Sonckus arvensis). 
The chrysalis is found enclosed in a cocoon beneath 
the earth. 
polia cm. 
JULY CHI. 
Plate LX I. Figure 6. 
Localities for this species are York, Rotherham, Sad- 
dleworth, Scarborough, Dewsbury, Isle of Man, Bowdon, 
Manchester, Plymouth, Stowmarket, Bolton, Darlington, 
Huddersfield, Preston, Edinburgh, Burton-on-Trent, 
Dunoon, Birkenhead. 
The situations where it is found are woods. 
The perfect insect appears in August and September. 
The caterpillar is light green on the back, darker green 
on the sides, with a whitish line on each side below the 
back ; the side line whitish yellow. 
The date of the appearance of the caterpillar is in 
May. 
It feeds on the Sow-thistle (Sonckus arvensis); also 
on the lettuce, etc 
The chrysalis is enclosed in a subterranean cocoon. 
