The _butterfly_ is out in July and August, and is not rare in the woods of the South and Midland districts, but it also extends its range into Scotland. On the banks of Wye, about Tintern and Monmouth, I found it extremely abundant. It has been seen swarming in a teasel-field, near Selby, Yorkshire. Its predilection for settling on bramble sprays has been alluded to on page 47. * * * * * THE DARK-GREEN FRITILLARY. (_Argynnis Aglaia._) (Plate X. fig. 1, Male.) This is a handsomely-marked insect--orange-brown, chequered with black, above. Beneath, the _front wing_ is coloured nearly as above, _but bears near the tip several silvery spots_. The hind wing is splendidly studded with rounded spots of silver, on a ground partly tawny, partly olive-green and brown. The _male_ is the sex {130} represented, the female being darker above, both as to the ground colour and markings. The _caterpillar_, which feeds on the dog-violet, is very similar to that of the last; as also is the _chrysalis_. The _butterfly_ is out in July and part of August, and may be seen in a variety of situations, from the breezy tops of heathy downs, to close-grown forest-lands in the valleys; and it seems to be distributed over the whole of the country, occurring in widely distant localities, from the south coast to Scotland. * * * * * THE HIGH-BROWN FRITILLARY. (_Argynnis Adippe._) (Plate X. fig. 2.) On the upper surface, this insect so closely resembles the last, that it is difficult in a description to discriminate between them; but _beneath_, the two are distinguished by the _absence in Adippe of the silvery spots near the tip of the front wing_; and though there is some similarity in the arrangement of the silver spots on the hind wing, and in its general colouring, _Adippe_ is distinguished by a row of rust-red spots, with small silvery centres, between the silver border spots and the next row inwards. By comparing the figures of the under sides of _Adippe_ and _Aglaia_, these will be readily made out. {131} The _caterpillar_ is thorny, greyish, with black spots on the back, intersected by a white line. Feeds on the violet. The _chrysalis_ is reddish, spotted with silver. The _butterfly_ appears in July, in many open places, in woods, and on heaths, in various parts of England, but most plentifully in the south. Like the last species, it is an active and wary insect on the wing, and requires considerable agility and dexterity for its capture. * * * * * THE QUEEN OF SPAIN FRITILLARY. (_Argynnis Lathonia._) (Plate X. fig. 3.)