40O LEPIDOPTERA. 



prominent, each of them furnished with a tuft of moderately 

 long hairs ; along the dorsal region are two rather distinct 

 grey lines, and between them the still more faint grey dorsal 

 line ; one indistinct row of grey spots is substituted for the 

 sub-dorsal line ; and the spiracular line is greenish-grey ; 

 hairs grey, those from the sides standing out horizontally 

 and slightly curved ; ventral surface uniformly pale green. 

 (G. T. Porritt.) 



March till May; on burdock (Ai'dium lappa), feeding on 

 the undersides of the leaves, eating out holes and carefully 

 rolling back the white down of the leaf, while it devours the 

 parenchyma. Seldom eats from the edge of the leaf; as it 

 gets older removes to a younger leaf. 



Pupa rounded on the dorsal area ; flattened beneath ; head 

 bluntly rounded off"; the leg and wing cases extend half-way 

 down the abdomen, but are detached therefrom ; ground 

 colour bright green ; two distinct white stripes extend from 

 the thorax to the ti2i of the abdomen ; outside these 

 stripes, on each side of the first two abdominal segments, are 

 two conspicuous black spots, and similar spots are fainth' 

 indicated on the other segments; the hairs are as in the 

 larva. 



On the underside of a leaf or on a stem, or other con- 

 venient object ; attached only by the anal hooks, but lying 

 close to the leaf or other object. 



This is a sluggish species, very unwilling to fly when 

 disturbed from among its food-plant, but hiding among the 

 long grass and herbage. Even at dusk it is not often seen 

 on the wing, and our cabinets are almost entirely supjilied 

 by specimens reared from larva; found on the burdock leaves. 

 Rather a local insect, and mainly confined to open woods, but 

 found in Kent, Sussex, Surrey, Wilts. Dorset, Devon. 

 Somerset, Berks, Oxfordshire, Middlesex, Essex, Suttblk, 

 Norfolk, Hunts, Cambs, Gloucestershire, Herefordshire, and 



