Most of the larvae of this family feed on the lichens that cover walls and the bark of trees, and they conceal themselves so artfully among this peculiar vegetation that it is no easy matter to search them out; probably many still remain unknown to entomologists. Our first example--the Muslin Moth--has light brownish-grey and semi transparent wings, the front pair of which have darker markings arranged as shown in the illustration. It is a common moth, and may be met with in July and August. The caterpillar feeds on lichens in June. It is of a dull grey colour, with a yellow stripe down the back, and has numerous little tufts of light hair. _The Common Footman_ (_Lithosia lurideola_) The fore wings of this species are of a leaden grey, with a bright yellow costal stripe which dwindles to a point just before it reaches the tip. The hind wings are very pale yellow. [Illustration: FIG. 111.--THE COMMON FOOTMAN.] The larva is black, with a reddish line on each side just above the feet. It may be found during May and June among the lichens of oaks, blackthorns, and firs, especially in the woods of the south of England. The perfect insect flies during July and August. Family--EUCHELIIDAE _The Cinnabar_ (_Euchelia Jacobaeae_) The family _Eucheliidae_ contains only four British species, two of which must receive a share of our attention. The first of these is the Cinnabar Moth, which is common in all localities where its food plants--the groundsel (_Senecio vulgaris_) and the ragwort (_S. Jacobaea_)--abound. [Illustration: FIG. 112.--THE LARVA OF JACOBAEAE.] Its colours are so striking that a glance at its representation (fig. 1 of Plate X) will render a written description quite unnecessary. The caterpillar is a very familiar and conspicuous object. Its colour is bright orange, broken by several broad black rings; and its body is thinly covered with hair. When fully grown (July or August) it descends to the ground, and there changes to a smooth and shining reddish-brown chrysalis. The moth appears in June or early in July. _The Scarlet Tiger_ (_Callimorpha Dominula_) This is certainly one of the most beautiful of all our moths. Its fore wings are dark olive green, with a lovely metallic lustre, and boldly marked with large white and yellow spots. These spots are arranged generally like those in the illustration, but are subject to great variation. The hind wings are crimson, with large black patches, chiefly distributed near the hind margin. The thorax is black, with two white streaks; and the abdomen crimson, with a black line down the back. [Illustration: FIG. 113.--THE SCARLET TIGER.] This moth is a common one. It may be taken in June and July. I have seen it flying somewhat freely while the sun was still shining brightly.