214 Tf BOOK OF BRITISH HUTTERFLIES. 



winter as larvae they spin up during June, and the 

 perfect insects emerge in July. 



The full-grown larva, which is under lin. in length, 

 has a flattened ventral surface and tapers a little towards 

 both extremities. The body is light green, the head 

 being darker and rough. On the fore-part of the body- 

 are numerous extremely fine black points. The dorsal 

 stripe is of a darker green than the general colour, 

 with a stout paler green line down the centre of it 

 and a similar one still paler on each side. The sub- 

 dorsal line is pale green, and the spiracles are reddish, 

 while below them is a whitish line. 



The pupa, which is about fin. in length, is, when it 

 has not long turned, similar in colouring and marking 

 to the larva, and very closely resembles the pupa of 

 H. actaon, but the beak projecting from the head is 

 shorter and less sharply-pointed than is that of the last 

 named. 



The costal margin of the imago (Figs. 249 and 250) is 

 nearly straight. Near the anal angle of all the wings is a 

 concave hollowing of the margin most pronounced on the 

 hind-wings ; the fringe is pale. The ground-colour of the 

 upper surface is rich orange-brown sprinkled with black 

 scales on the hind-wings and at the base and hind-margin 

 of the fore-wings. Just inside the fringe is a distinct black 

 line. The male (Fig. 249) is distinguished from the female 

 (Fig. 250) by the black bar near the base of the fore- 

 wings. The under-surface is very plain, being greyish- 

 brown with a good sprinkling of black scales. 



H. lineola, Och. (New Small Skipper) (Fig. 251), was, 

 in 1891, added to the list of British Butterflies. Before 

 that time it had been confused with H. thaumas, which it 

 very closely resembles, with which it usually flies, and with 

 whose time of appearance on the wing it almost or quite 



