. Insetti dannosi per la frutta. Illustrato con quattro cento e quaranta legno-tagli. Pesti di insetto. Attaccare il LEAJ^S. 259 cari alla base. Ci sono anche due macchie brunastre in prossimità della parte centrale del parafango, una rotonda, l'altra forma di rene; questi sono talvolta così coperto con perlacea squame bianco-come per essere indistinti sopra, ma sono chiari e la battuta sul lato inferiore. La cerva le ali sono di colore giallo intenso, con un ampio colore bruno - viola fascia lungo il margine di ostacolare, che si estende quasi per l'angolo esterno e in polvere con pochi perlacea squame bianco-; vi è un debole puntino sulla parte centrale del parafango, che è più

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. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. ATTACKING THE LEAJ^S. 259 Dear the base. There are also two brownish spots near the middle of the wing, one round, the other kidney-shaped; these are sometimes so covered with pearly-white scales as to be indistinct above, but are clear and striking on the under side. The hind wings are deep yellow, with a broad brownish- purple band along the hinder margin, extending nearly to the outer angle, and powdered with a few pearly-white scales; there is a faint dot on the middle of the wing, which is more prominent on the under side. The head is black, and there is a wide black stripe down the back, merging into a series of black spots extending to near the tip of the abdomen, which is tufted with white. The shoulder-covers are white, and the sides of the body deep yellow, with a row of black dots along each side close to the under surface. The wings beneath are reddish yellow, and the body white. The moth appears during the latter part of June or early in July, and is active at night. The eggs are laid on the under side of the leaves, singly or in small groups, and are among the prettiest of insect eggs; tliey are circular and very flat (see e and /, Fig. 269), about one-thirtieth of an inch in diameter, and less than half of that in thickness. They are yellowish, or greenish ^^^- ^^^• yellow, and are beautifully sculptured with radiating ribs from a central round dot, the ribs interlaced with gracefully curving lines. On escaping from the egg, the young larvae are yellowish green, dotted with black; they eat small holes in the leaves, and, when at rest, throw the hinder segments of the body forward over the anterior ones, making a curious sort of loop; as they grow^ larger they devour all parts of the leaf, the framework as well as the softer substance. When mature, they are about an inch and a half long, and appear as shown at a in Fig. 269. The. Please note that these ima

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1880
• bookpublisherphila
• bookyear1883