The pearly white eggs are laid in neatly arranged batches on leaves. The caterpillars hatch out in July, feed for a few weeks, and go into hibernation while still small. They resume feeding in a favourable season as early as mid-March. Some that I obtained at the end of March, then about three parts grown, began to spin up on April 15. The full-grown caterpillar is black with several star-like clusters of brown hairs on each ring, the hairs on the back of the hinder rings rather longer and slightly curved backwards; the head, legs, and claspers are red, approaching crimson. A diet of dandelion suits it very well, but it will also eat chickweed, dock, nettle, groundsel, and in fact almost any low-growing plant. The outer leaves of lettuce are useful on occasion but should not be given exclusively, and it also likes the tender shoots of gorse (_Ulex europæus_). Chrysalis and cocoon somewhat similar to those of the last species (Plate 86). The moth emerges in May and June. Occasionally a few larvæ will feed up and the moths appear the same year, but this only happens in captivity and not in the open. When reposing in the daytime, on a hedgebank for example, with the fore wings closed down over and hiding the yellow hind wings this moth is not so conspicuous as one might suppose it would be. At night it is active on the wing and often flies into houses, attracted by the light. I have put up specimens now and then {164} in hay fields, and once found half a dozen along a short stretch of the Upper cliff at Ventnor, Isle of Wight. It is perhaps most frequent in the south-west, but the species seems to be widely distributed and fairly common from Kent to Cornwall, and westward from Hampshire to Gloucestershire. It also occurs in the eastern counties to Cambridge and Norfolk. From Cheshire it has been twice reported, and two specimens are said to have been taken, a few years ago, in the Lancaster district. THE JERSEY TIGER (_Callimorpha quadripunctaria_).