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PTEROPHORUS BIPUNCTIDACTYLUS. 
Plate CXXXII. Figure 6. 
Localities for this species are York, Scarborough, 
Market Harborough, Colchester, Alkham, Birkenhead, 
Bristol, Cambridge, Darlington, Kingsbury, Pembury, 
Lewes, Manchester, Newcastle-on-Tyne. 
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. 
