Although the eggs appear to be more frequently laid on heather than on anything else, the caterpillars do not seem to be very partial to the plant as an article of food if others are available. At the present time (October 13) I have about a score or so of young larvæ feeding, and apparently thriving, on dandelion, lettuce, and grass, but they certainly seem to prefer the first named. They are now rather over half an inch in length, and yellowish brown in colour; there is a whitish grey stripe along the back; the warts are shining black, and the hairs arising from them are black, mixed with a few longer white ones; head blackish. Caterpillars after hibernation have been found on the grass, {169} _Aira cæspitosa_, during March from about the 10th onwards; they are then about a quarter of an inch long, and according to the late Mr. Fowler, always found on the sunny side of the clumps of _Aira_ stretched out, and evidently enjoying the warmth of the sun. Some collected in that month were reared on groundsel, and produced moths from July 12 to August 20. The chrysalis is at first reddish, afterwards shining jet black; in a slight egg-shaped white silken cocoon, spun up in tufts of grass. In exceptional seasons the moth has emerged in late May, but June and July are the usual months, and it may occur as late as August. It rests among the heather, is easily disturbed on sunny days, and is very active on the wing, although it does not fly far before settling again. The species is very local in England, and only found on a heath near Bournemouth, in a heathy district between Ringwood and Verwood in Dorset, and in a not generally known part of the New Forest. THE CRIMSON SPECKLED (_Deiopeia pulchella_).