The species seems to occur in all parts of the British Isles, except perhaps the extreme north of Scotland and the Hebrides.

Abroad, the range extends to Amurland and to North-west Africa.

The Leopard Moth (Zeuzera pyrina).

As will be seen from the portraits of this blue-black spotted white species on Plate [153], the male (Fig. 6) is smaller than the female (Fig. 7); it will be further noted that the antennæ of the male are bi-pectinated on the basal half, and thread-like on the outer half; the antennæ of the female are thread-like throughout.

2 Pl. 152.
1.Leopard Moth: caterpillar.
2.Orange-tailed Clearwing: caterpillar's burrow and exit hole; chrysalis skin.

2 Pl. 153.
1, 2.Festoon. 3.Reed Leopard.4, 5.Triangle.6, 7.Leopard Moth.

The caterpillar (Plate [152], Fig. 1, from a coloured drawing by Mr. A. Sich) is dull whitish, more or less tinged with yellow; the spots are black, and the head and plates on the first and last rings of the body are blackish brown. It feeds in branches and stems of trees and shrubs. Hatching from the egg, say in the late summer of 1908, the caterpillar will not be full grown until May or June of 1910, or possibly 1911; forming a cocoon of silk and wood particles, it turns to a reddish brown chrysalis in the burrow, and near the bark of the stem or branch. The moth comes out in the summer, and is most often seen in the London district, where the female especially is not infrequently found on tree-trunks or on grass, etc., under trees. It visits light, and the electric arc lamps are very attractive to it.