THE DARK GREEN FRITILLARY. 89 



paler. The foregoing brief description was taken on July 10, 

 and the butterfly emerged five days afterwards. 



Barrett says, " Apparently found in most of the larger woods 

 of the southern counties, from Kent, Essex, Suffolk, and Norfolk 

 on the east, to Devonshire, Glamorganshire, and Merionethshire 

 on the west ; also in similar situations through the north- 

 western counties and the more sheltered woods of the Midlands 

 to Herefordshire, Shropshire, Derbyshire, and Lincolnshire. 

 Found in several localities in Yorkshire, in the favoured Grange 

 and Silverdale districts of Lancashire, and near Lake Winder- 

 mere in Westmoreland, its extreme northern boundary being 

 reached in Cumberland." 



It is widely distributed over Europe, and its range extends 

 into Asia Minor and Amurland. In China and Japan it is 

 represented by various forms, the commonest of which is var. 

 locuples. 



The Dark Green Fritillary (Argynnis aglaia). 



This butterfly is bright fulvous in the male, paler in the 

 female ; the latter sex is blackish towards the base, and has 

 paler spots on the outer margin. The black marking is 

 pretty much as in the previous species, but the male has the 

 black scales {androconid) on veins 1 and 2, and these are less 

 conspicuous. The basal two-thirds of the hind wings is 

 greenish on the under side. The silvery spots are arranged in 

 fairly regular series, and there are no silvery centred red spots 

 between the two outer series. The blackish crescents on the 

 outer margin of the fore wings are edged with silver, but this 

 is chiefly towards the tips of the wings. 



There is some variation in the tone of the ground colour, 

 lighter or darker than normal in both sexes ; the female seems 

 to be the most variable in this respect, and sometimes, especially 

 in the north, examples of this sex are much suffused with 



