212 



THE BOOK OF BRITISH BUTTERFLIES. 



red and the spiracular line is whitish-green. The head 

 is dark brown. 



The unangled pupa is green on the thorax, but tinged 

 with red on the abdomen. 



The costal margin of the imago (Fig. 247) is nearly 

 straight, and the hind-margin of all the wings slightly 

 convex. The fringe is brown, as is also the ground- 

 colour of all the wings. On the fore-wings are two 

 rows of dark brown spots, the one nearest the base 

 being interrupted. The hind-wings are of a much 

 darker brown ground-colour, with a few indistinct 

 pale markings. Inside the fringe on all the wings is a 



NISONIADES TAGES. 



fine dark line, succeeded inwards by a row of tiny 

 whitish dots. The under-surface is pale whitish-brown, 

 with a few indistinct whitish dots, consisting principally 

 of a line just inside the fringe. The sexes are similar. 



Hesperia, Boisduval. 



Hesperia contains five British species H. thaumas, 

 H. lineola, H. actaon, H. sylvanus, H. comma, all of 

 them possessing a rich orange-brown ground-colour, and 

 the males in each case having a black bar near the 

 base of the fore-wings, distinguishing them from the 

 females. The last two, which are considerably larger 



