Papilionidae
A family of Butterflies, some species of which are injurious to cultivated plants. The family marks are: that the perfect insects are moderately large, the wings spreading from 1 1/2in. to 4in. across, and all six legs are useful for walking; the larvae are long, nearly cylindrical, and naked, or only slightly hairy; and the pupae are fixed to supports by both a belt of silk round the middle and a silk cord at the tail. The family includes eleven British species, and among these are the largest British butterfly, viz., the Swallow-tail, which lives in the Fen Counties of England, feeding on Umbellifers. Other well-known species are the Brimstone Butterfly, the Clouded Yellows, the Orange Tip, and the various White Butterflies. These last alone are hurtful in gardens. The larvae of the large White (Pieris Brassicoe) and the Small White (P. Rapoe) do great injury to Cabbages (see Cabbage Caterpillars), and those of the Black-veined White (Aporia Crataegi) feed on Hawthorn, and on Apple and Pear-trees (see Hawthorn Caterpillars).