68 PTEROPHOHID/E. 



Aciptilia tetradactyla, L. 



leucodactyla, lib. 



(Plate 18. fig. 6.) 



Loc. Renfrewshire, Doiicaster, Richmond (York.), 

 Scarborough, Gal way, Dover, Folkestone. 



This species flies at dusk in July and August ; it 

 can be easily distinguished i'rom baliodactyla by the 

 dark fringes and costal margin. 



The larva feeds in May and June on Thymm ser- 

 pyllum, Puhnonaria officinalis, Origanum, &c. 



The larva is light green, covered with white hair, 



th blackish markings and spots on each segment; 

 spiracular stripe yellow ; head yellowish brown. Treit. 



Aciptilia pentadactyla, L. 



tridadijla, Scop. 



(Plate 18. fig. 7.) 



Loc. Devon, Bramham, Wakefield, Goole, Yoi-k, 

 Norfolk, Wallasey, Tranmere, Ness, Burton, Hastings, 

 Suflblk, Pembroke, Wicklow, Cork. 



This species, which is generally distributed, flies at 

 dusk in June and July. 



The larva feeds in May and June on convolvulus 

 (Calystetjia sepium) , eating both leaves and flowers. It 

 pupates attached by the tail to a leaf or stem of its 

 food-plant. 



The ground-colour of the larva is green ; the dorsal 

 area margined by narrow white lines commencing at 

 the third segment and terminating at the end of each 



