Forest entomology . d hairy ;eyes black ; thorax white ; abdomen brown-grey. Fore wings whenclosed showing a white line in centre, and brown at sides, a kind ofmagpie colour. Fore wings when spread, whitish with brownishpatches. Hind wings brown-grey with light fringe. Wing span 14to 17 mm. Larva with black head, and neck shield ; body of a dirty ashy-greycolour, streaked with reddish-green, tapering at both ends, and the1 Die Pflanzeufeinde aus der Klasse der Insekten. LEPIDOPTERA. 275 belly dark-green. Length 12 mm. Viewed with a lens, the colourvery much resembles a healthy young ash stem.
Forest entomology . d hairy ;eyes black ; thorax white ; abdomen brown-grey. Fore wings whenclosed showing a white line in centre, and brown at sides, a kind ofmagpie colour. Fore wings when spread, whitish with brownishpatches. Hind wings brown-grey with light fringe. Wing span 14to 17 mm. Larva with black head, and neck shield ; body of a dirty ashy-greycolour, streaked with reddish-green, tapering at both ends, and the1 Die Pflanzeufeinde aus der Klasse der Insekten. LEPIDOPTERA. 275 belly dark-green. Length 12 mm. Viewed with a lens, the colourvery much resembles a healthy young ash stem. Pupa dark - brown in fore part, and latter part of a very lightgreyish-yellow, enclosed in silken threads. As regards the life-history of this species, I find there is a greatdifference between the account given by Judeich and Nitsche, as seenfrom fig. 263, and what I have found in Northumberland, inasmuchas the species is double-brooded in Germany, and only a single gener- I / •we -; . ? ii* Fig. 203 —Prays , moth ; b, bud injured in autumn by young larva; r, the young larva has left the bud inspring and spun a protection for itself; d and e, the young shoots destroyed by springlarvae; /, g, and h, leaves eaten by summer larv:e—, larva; of second brood. Copiedfrom Judeich and Nitsche. ation in a year in the north of England. It is, however, possible thatthe species may be double-brooded in the south of England, and itwill be well, therefore, for students in forest entomology to verifythis. Hence the illustration from Nitsche may be very helpful. Inthe accompanying illustration it will be seen that the spring brooddestroys the leading shoots and the leaf-stalks, as seen in d and larvae of the second brood eat the leaves, as seen in /, g, and h,and then deposit eggs in the leading buds. With regard to remedies, it is scarcely possible to do anythingexcept collect the larvae when they are feeding in the leaf-stalks. 276 FOREST ENT
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