The caterpillars emerge from the eggs towards the end of the latter month, and always feed in groups under the cover of a silken web. Like the preceding species they hybernate during the winter, and commence feeding again in the spring. They are fully grown about the end of April. In colour the caterpillar is velvety black, dotted with white, and its body is covered with short bristly spines. When fully fed it seeks the shelter of a curled leaf or dense herbage, suspends itself by the hind claspers to a silken carpet, and then changes to a creamy white chrysalis with black dots. _The Glanville Fritillary_ (_Melitaea Cinxia_) The pattern of the upper side of this Fritillary (Plate III, fig. 4) is very similar to that of _Aurinia_, but the ground colour is a uniform tawny brown, and the fringes of the wings are of a very pale straw colour, barred with black. The under side of the fore wings is tawny brown, with straw-coloured tips bearing black markings. The hind wings have four alternate bands of brown and straw colour, and a patch of straw colour at the base. The marginal yellow band has six or seven black spots. The brown band next to it is divided into six segments with black borders, each with a black spot. The next yellow band has also a row of black spots. The inner fulvous band is very irregular; and inside this is the yellow base with six spots. [Illustration: FIG. 74.--THE GLANVILLE FRITILLARY--UNDER SIDE.] This is another local insect--very local indeed, for it seems to have been found only in a few spots outside its head quarters, the Isle of Wight. Those in search of it should carefully scan the rough cliffy parts of the island, wherever the species of plantain (_Plantago Coronopus_ and _P. maritima_) are plentiful, these being the food plants of the larvae. It first appears on the wing in May, but may be found till the end of June. The caterpillars, which are black and spiny, with reddish head and legs, begin to feed in August, and as soon as the chilly weather sets in they hybernate in groups under the cover of a tent constructed by binding together leaves or blades of grass. In the spring they start out again, and feed till the end of April, at which time they change to dark brownish and smooth chrysalides. _The Heath Fritillary_ (_Melitaea Athalia_) Both the upper and under sides of this butterfly are shown on Plate III (figs. 5 and 6), and it will be observed from these that its general appearance is very similar to that of _Cinxia_. The upper surface is of the same tawny brown, barred and striped with black, and the fringes of the wings are pale yellow, interrupted by small patches of black.