We now come to the enormous genus _Eupithecia_, containing about fifty small species, most of which are known as 'Pugs.' Many of these are only imperfectly known, there being yet much to learn about their earlier stages. [Illustration: FIG. 197.--THE NETTED PUG.] The Netted Pug flies in May and June, and is to be found in most parts of Great Britain. Its fore wings are brownish grey, crossed by two zigzag light bands, both of which are bordered with black, and divided throughout by a fine dark line. There are also other dark lines, both transverse and longitudinal, arranged as here represented. The caterpillar feeds during July inside the seed capsules of campions (_Silene Cucubalis_, _S. maritima_, _S. acaulis_, and _Lychnis diurna_) and catchfly (_Silene gallica_ and _S. nutans_). _The Narrow-winged Pug_ (_Eupithecia nanata_) Early in May, and frequently in April, this pretty little moth may be seen flying about at dusk among the heather on our moors. It is one of the first Pugs of the season, and is widely distributed, and very common in some localities. [Illustration: FIG. 198.--THE NARROW-WINGED PUG.] Its wings are dark grey, and marked with several transverse wavy light lines. The fringe is dark grey, spotted with white. The caterpillar feeds during August and September on the ling (_Calluna vulgaris_) and heath (_Erica cinerea_ and _E. Tetralix_). _The Brindled Pug_ (_Eupithecia abbreviata_) Our last example of the Pugs is the Brindled Pug, another early species, appearing on the wing in March and April. It is common in most parts, and may generally be easily obtained by searching fences and tree trunks. [Illustration: FIG. 199.--THE BRINDLED PUG.] Its fore wings are very long in proportion. The colour is yellowish brown, crossed by darker lines. The fore wings have a very broad band of the ground colour, broken by two short lines, and crossed by a slender angulated stripe. The caterpillar feeds on the oak in June. _The Small Seraphim_ (_Lobophora sexalisata_) This moth is very much like the Pugs in general appearance, and is quite as small and even smaller than some of them; but it and the other members of its genus differ from the Pugs in that they cover their hind wings when at rest. [Illustration: FIG. 200.--THE SMALL SERAPHIM.] The fore wings are yellowish or pale brownish grey with four paler transverse lines, the two median ones of which are divided throughout by a darker fine wavy line. The hind wings are grey, paler at the base, and crossed centrally by a double darker line. This species flies in May and June, and though apparently widely distributed, can hardly be described as common. The caterpillar feeds on the white willow (_Salix alba_) and sallow (_S. caprea_) in August and September; and the chrysalis may be found in a silken cocoon among the fallen leaves throughout the winter. _The Blue-bordered Carpet_ (_Melanthia bicolorata_)