The British Butterflies Described 



little colonies where it most certainly must have fed on 

 other plants, as Violas of any species were distinctly 

 rare in the district, which is wet and marshy. For 

 Scotland there is a single brood in June, while in the 

 South it is double-brooded May and August. 



THE QUEEN OF SPAIN FRITILLARY (Argynnis 

 Lathonia), Plate IV., Fig. 6. This is, unfortunately, 

 the rarest of all our Fritillaries ; unfortunately, because 

 it is the most beautiful and brilliant. In outline the 

 fore-wing differs from that of the two preceding species, 

 being slightly concave on the outer margin, while the 

 hind-wing bears a slight trace of scalloping. But it is 

 on the under side where all the treasures lie. A row 

 of seven pearl spots adorns the outer margin of the 

 hind-wing ; then comes a row of small dark spots, each 

 with a pearl-spot in its centre ; then a profusion of 

 large and small glittering patches completes this beautiful 

 wing. The under side of the fore-wing has only three 

 (or sometimes a tiny fourth) pearl spots near the tip. 

 This butterfly is taken occasionally in clover-fields in 

 our south- eastern counties. The specimens taken there 

 are possibly migrants from the Continent. 



The caterpillar is dark, with a white line on the back, 

 yellow lines on the sides, and is clothed with short red 

 spines. It may be found on Violas. As this insect is 

 double-brooded on the Continent, it is well to look out 

 for it during the whole summer from May to September. 



THE DARK GREEN FRITILLARY (Argynnis Aglaia\ 

 Plate IV., Fig. 4. The only claim this handsome species 

 has to be called green lies in the fact that the under side 



