The caterpillar (Plate 118, Fig. 1), is obscure brownish, sometimes ochreous or green tinged; with ochreous lines on the back, the outer ones edged with blackish bars on rings four to eleven; head pale brown marked with darker. It feeds from August to May on grasses and low plants, and is often a pest in the flower or vegetable garden. When eggs are obtained early, the caterpillars from them will sometimes attain the moth state in the same year. The moth flies in June and July, and has occurred in April, September, and October. THE BROAD-BORDERED YELLOW UNDERWING (_Triphæna fimbria_). This is another species with variable coloured fore wings, and four examples of it are shown on Plate 116. Pale ochreous brown and greyish brown is the most frequent colour, but various shades of greenish or olive brown are not uncommon. A dark reddish-brown form, known to collectors as the "mahogany form," seems to be somewhat rare. In the majority of specimens the basal third, and more or less of the central area adjacent to the second line seems to be the darkest coloured; but occasionally these parts are pretty much of the same tint as the rest of the wings. The caterpillar (Plate 118, Fig. 4) is of a soft ochreous brown, sometimes red tinted, minutely dotted with blackish; the central line on the back is pale, and on each side are darkly-edged pale {234} oblique streaks; the white spiracles are followed by blackish marks; head brown freckled with darker. It feeds in the autumn on primrose, violet, dock, etc., and in the spring it seems to prefer the buds and young leaves of birch, sallow, bramble, hawthorn, sloe, chestnut, etc. The chrysalis, which also is figured, is dark reddish-brown, with two short anal spikes. This species occurs in June and July, and frequents woodland localities throughout England, Ireland, Scotland (up to Moray), and Wales. THE LESSER BROAD-BORDER (_Triphæna ianthina_). Fore wings violet or purplish grey with blackish cross bands and brownish suffusion, the latter more especially on the basal area; reniform and orbicular stigma outlined in whitish. (Plate 116, Fig. 3.) In another form the bands and suffusion are reddish-brown. The black clouding on basal area of hind wings sometimes extends further towards the marginal band. The caterpillar (Plate 118, Fig. 3) is of a greenish tinged ochreous brown colour, with a pale central line and series of dusky dashes along the back, these dashes becoming blackish on the hind rings; the white spiracles are set in a blackish mark, and under them is a pale ochreous stripe. It feeds in the autumn on primrose, bramble, dock, etc., and in the spring on the young growth of sallow, elm, hawthorn, etc. The moth flies in July and August, frequenting lanes, hedgerows, and woods. It is pretty generally distributed throughout England, Wales, Ireland, and Scotland as far north as Moray. THE LEAST YELLOW UNDERWING (_Triphæna interjecta_).