. Insect pests of farm, garden and orchard . ous weeds in early springand appear on cucurbs soon after they start growth. Both wingedand wingless females occur throughout the year. The winglessform is about one-fifteenth inch long and varies from light yellowor tan colored to deep olive-green or deep green which appearsalmost blackish, the abdomen being always more or less rather long, tapering, honey-tubes are jet black, and the legsand antennae pale whitish-yellow. The young nymphs always * Aphis gossypii Glover. Family Aphididoe. See F. H. Chittenden,Circular 80, Bureau ofEnt.,
. Insect pests of farm, garden and orchard . ous weeds in early springand appear on cucurbs soon after they start growth. Both wingedand wingless females occur throughout the year. The winglessform is about one-fifteenth inch long and varies from light yellowor tan colored to deep olive-green or deep green which appearsalmost blackish, the abdomen being always more or less rather long, tapering, honey-tubes are jet black, and the legsand antennae pale whitish-yellow. The young nymphs always * Aphis gossypii Glover. Family Aphididoe. See F. H. Chittenden,Circular 80, Bureau ofEnt., U. S. Dept. Agr. 384 INSECT PESTS OF FARM, GARDEN AND ORCHARD show a distinct yellowish-brown or pale salmon-colored area justin front of the honey-tubes and a dark transverse l^and betweenthem. The nymphs of the last stage, in which the wing pads arevisible, are marked on the back with little flecks of silvery white,waxy bloom. The winged female is about the same length and thewings expand one-fifth to one-quarter inch. The color varies as. Fig. 277.—The melon aphis (Aphis gossypii Glov.): a, winged female; aa,enlarged antenna of same; ah, dark fen>ale, side view, sucking juicefrom leaf; fc, young nymph; c, last stage of nymph of winged form;d, wingless female—greatly enlarged. (After Chittenden, U. S. D. Agr.) in the wingless form, but there are black spots along the sidesof the abdomen, and the head and thorax are dark as shown inFig. 277. The melon-aphis is found throughout the country southwardthrough Central America, and though it often does serious damagein the North it is worse in the South. It has a long list of foodplants, among the crops injured by it homg all the ciicurbs, cotton, INJURIOUS TO MELONS, CUCUMBERS, SQUASH, ETC. 385 okra, oniiigv, and its fo{Kl-]) include niaii\- others,as it is found on a long list of weeds, most abundantly on shep-herds purse and pepper-grass, upon which it multiplies in earlyspring and probably passes the win
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