. The American fruit culturist. Fig. 266. — The Rose-Chafer, enlarged. 2 00 DESTRUCTIVE INSECTS. near by, to the growth of annual crops which require frequentcultivation. The Grape-vine L€af-hopper {Typhlocyba conies).—When grapeleaves have a blotched appearance, or are covered with littleyellowish or brownish patches, as at/ in Fig. 267, and event-ually dry up and fall, it is usually the work of little jumpinginsects, called leaf-hoppers (Fig. 267). They are minute in-sects about an eighth of an inch in length, and have a peculiarhabit of running sidewise when disturbed, and dodging to the. F
. The American fruit culturist. Fig. 266. — The Rose-Chafer, enlarged. 2 00 DESTRUCTIVE INSECTS. near by, to the growth of annual crops which require frequentcultivation. The Grape-vine L€af-hopper {Typhlocyba conies).—When grapeleaves have a blotched appearance, or are covered with littleyellowish or brownish patches, as at/ in Fig. 267, and event-ually dry up and fall, it is usually the work of little jumpinginsects, called leaf-hoppers (Fig. 267). They are minute in-sects about an eighth of an inch in length, and have a peculiarhabit of running sidewise when disturbed, and dodging to the. Fig. 267.—The Grape-vine Leaf-hopper, b. Adult; d and t?, nymphs;/, workof insect on leaf ; ^, cast skins of nymphs on leaf ; b^ d, and e, much enlarged.(U. S. Div. of Entomolog-y.) other side of the leaf. The adults jump or fly away quicklywhen the vine is disturbed. Their wings and back are vari-ously colored with red, yellow, and brown, while the bodycolor is light yellowish-green. In May they begin to appear,and continue on the vines until the leaves fall. The adulthoppers spend the winter in masses of rubbish or leaves ac-cumulated against fences or other obstruction, where thou-sands of them may be seen on warm winter days. The eggsare thrust under the skin of the lower side of the leaves ofthe vine in June. The nymphs (Fig. 267 ^ and e) live on theunder sides of the leaves and suck out the substance of theleaf. As the nymphs grow they shed their skins four times, DESTRUCTIVE INSECTS. 201 and the empty skins often remain attached to the leaves inlarge numbers (Fig. 267 g). The
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