44 BRITISH BUTTERFLIES 
a crescent shape, especially the row running near the outer margin of the wing, and which are united to 
two slender marginal black lines. The fore wings in the males have the two inner branches of the median veins 
strongly dilated in the middle, the anal vein being scarcely dilated. The under side of the fore wings 
almost resembles the upper, except that the spots towards the apex of the wing assume a rich brown 
colour, some being marked with silver spots. The hind wings are on this side varied with buff, ferruginous, and 
brown ; at the base are about seven silvery patches, disposed somewhat in a circle, beyond which is an irregularly 
curved row of about nine or ten silvery patches varying in size, succeeded by a row of rusty red spots, 
some of which have the centre silvery ; there is also a row of seven submarginal silvery wedge-shaped spots. In 
both sexes the outer edge of the fore wings is slightly concave. 
Several varieties of this species have been observed, in which the spottings of the wings become more or less 
confluent. 
The caterpillar is at first red, but subsequently olive-green, with a white line down the back, and white spots 
on the sides. It feeds on the heartsease and sweet violet. The chrysalis is reddish, with silvery spots. This 
state lasts about a fortnight: the butterfly appears at the end of June or beginning of July. The butterfly 
frequents heaths and the borders of woods, and is far from uncommon in most of the southern counties 
of England. 
Godart, Ochsenheimer, and Curtis, consider it doubtful whether this insect be the P. Adippe of 
Linneus, considering that the A. Niobe of Hiibner, &c., is the true Adippe. Professor Zetterstedt has, 
however, shown the correctness of the ordinary opinion respecting the names of this species. The true 
Niobe, which Stewart gives as British, and of which Mr. Dale possesses a specimen, which he obtained 
from the professedly indigenous collection of Dr. Abbot, is indeed very similar to our common Adippe, but it is 
rather smaller, with the base of the wings above more dusky, and the posterior beneath much more strongly 
variegated with yellow (or rarely silver) spots: but a more important character is the very slight incrassation of 
the veins of the fore wings of the males. 
DESCRIPTION OF PLATE X. 
Insects.—Fig. 1. Argynnis Paphia, male (the silver-washed Fritillary Butterfly). 2. The female. 3. Showing the under side. 
4. The Caterpillar. 5. The Chrysalis. 
ce Fig. 6. Argynnis Aglaia, male (the dark green Fritillary B.) 7. The female. 8. Showing the under side. 
9. The Caterpillar. 10. The Chrysalis. 
Prants.—Fig. 11. 11. Rubus Ideus (the Raspberry). 12. 12. Viola odorata (the Sweet Violet). 
This plate contains only two species, but as they are two of the most remarkable and distinct of the larger Fritillaries, I have thought it 
advantageous to give three figures of each, particularly as the males and females present such differences of marking and colour as might lead the 
young collector to consider them as different species. The male of A. Paphia, it will be seen, is of a much brighter colour than the female, and 
the nervures of the anterior wings are thickened into broad black stripes, not found in the female. 
The male of A, Aglaia, on the contrary, is not so fine an insect as the female, which is not only larger but more strongly marked ; and the 
rounded spots enclosed by the black crescents of the border of the posterior wings are of a lighter and brighter tone than the ground-colour. , In 
the male these spots are the same as the ground-colour, whieh is generally somewhat richer than the female. The male and female of both species 
are from specimens in the collection of Mr. Westwood, and the Caterpillars are from Hiibner. H. N. H. 
