294 



PTEROPHORUS BIPUNCTIDACTYLUS. 

 Plate CXXXII. Figure 6. 



Localities for this species are York, Scarborough, 

 Market Harborough, Colchester, Alkham, Birkenhead, 

 Bristol, Cambridge, Darlington, Kingsbury, Lewes, 

 Manchester, Newcastle on-Tyne, Pembury. 



The perfect insect appears in July and in August. 



PTEROPHORUS PLAGIODACTYLUS. 

 Plate CXXXII. Figure 7. 



Localities for this species are York, Lewes, Burnet 

 Wood, Llanferras, Witherslack, Manchester. 



The perfect insect appears in June and July. 



The caterpillar is green with a claret coloured line along 

 the back, narrowed towards the head and the tail. 



The date of the appearance of the caterpillar is in 

 April and May. 



It feeds on the knapweed, (Knautia arvensis.) 



PTEROPHORUS ZOPHODACTYLUS. 

 Plate CXXXII. Figure 8. 



Localities for this species are Haslemere, and on the 

 Lancashire side of the Mersey, from Crosby to beyond 

 Southport. 



