299 



The perfect insect appears in May, July and August; 

 May 28. 



The date of the appearance of the caterpillar is in 

 June and July. 



It feeds on the lower leaves of the wormwood, (Artemisia 

 vulgaris) and the sea wormwood, (Artemisia maritima.) 



PTEROPHORUS TEPHRADACTYLUS. 

 Plate CXXXII. . Figure 17. 



Localities for this species are Clovelly, Bangor, Llan- 

 ferras, Grange in Car tin ell, Witherslack, Humphrey Head 

 in the Isle of Man. 



The perfect insect appears in June and July. 



The caterpillar is greenish yellow when young ; afterwards 

 whitish green. 



The date of the appearance of the caterpillar is from 

 September to April and May. 



It feeds on the golden rod, ( Solidago virgaurea.) 



PTEROPHORUS OSTEODACTYLUS. 

 Plate CXXXII. Figure 18. 



Localities for this species are Scarborough, Wokingham, 

 Llanferras, Bangor, Hawkshead, Bristol, etc. 



The perfect insect appears in June July and August. 



The caterpillar is light drab, striped, sometimes dark, 

 with a darker line along the back, the second segment with 

 two darker marks. 



