Forest entomology . and pupates, and the othercontains its excrement. The pupalperiod is very short, and the mothflies about May—the generation thus Fig_ resinella. extending over two years. It generally attacks trees from six to ten years of age, but, as arule, the injury to the forest, or even to individual trees, is verytrifling. The moth (fig. 258) has a wing expanse of 16 to 18 mm. Head,antennae, thorax, and abdomen dark brown-green, or lightish greydusty covering. Fore wings dark black-brown, with shining greytransverse lines; hind wings grey-brown ; fringes pale. The larva
Forest entomology . and pupates, and the othercontains its excrement. The pupalperiod is very short, and the mothflies about May—the generation thus Fig_ resinella. extending over two years. It generally attacks trees from six to ten years of age, but, as arule, the injury to the forest, or even to individual trees, is verytrifling. The moth (fig. 258) has a wing expanse of 16 to 18 mm. Head,antennae, thorax, and abdomen dark brown-green, or lightish greydusty covering. Fore wings dark black-brown, with shining greytransverse lines; hind wings grey-brown ; fringes pale. The larva is about 11 mm. long, and of an orange-brown colour. Family TINE£I. Genus Htponomeuta. In many parts of the country, more especially in lanes, weoften find bushes defoliated and covered with a sort of net, inthe interior of which are a large number of small larvae ofthe genus called Hyponomeuta. They are popularly known asthe small ermine moths, but they are comparatively large for micros. 272 FOREST Fig. 259.—Hypcmomeuta evonymellus. Hyponomeuta evonymellus (L.) The genus contains a number of species. The one generallyfound in the north of England is H. evonymellus. It is found onbird-cherry and spindle-tree, and the conspicuous feature of the damage is the defoliation of thebushes, together with the gauze-like spun webs, which protect thegregarious larvae. The moth (fig. 259) measuresabout f inch from the tip of thewings. The upper surface of thewings is a lustrous white colour,and shows five rows of blackspots (over forty in all). The hind wings are dark-grey. Thehead and antennae are white, eyes black, and abdomen grey. The caterpillar is about f inch in length, and of a yellowish-grey colour. The head is black,and there are black spots onthe segments. After the caterpillars are fullfed they congregate within theweb, and pupate in a mass,for the mass of pupal remainsmay be found even in thefollowing year, reminding oneof the empty cases of thewasp or honey
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