. Insetti dannosi per la frutta. Illustrato con quattro cento e quaranta legno-tagli. Pesti di insetto. Attaccare le foglie. 205 Fig. 210. No. 110.-l'imperatore Promethea-moth. Callosamia Promethea (Drury). Durante l'inverno ci può essere spesso visto su cherry- alberi, in particolare le specie selvatiche, ritorto anta appesa qui e lì dopo che tutti gli altri sono caduti. Un esame più approfondito mostra ognuno di questi per contenere una lunga, ovale, silken cocoon (vedere Fig. 210), lo stelo della foglia essendo fissato per il ramoscello sul quale è cresciuto con silken thread. La seta è avvolto attorno al ramoscello per circa la metà di un i

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. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. ATTACKING THE LEAVES. 205 Fig. 210. No. 110.—The Promethea Emperor-moth. Callosamia Promethea (Drury). During the winter there may frequently be seen on cherry- trees, particularly the wild species, a twisted leaf hanging here and there after all the others have fallen. A closer examination shows each of these to contain a long, oval, silken cocoon (see Fig. 210), the stem of the leaf being secured to the twig on which it grew with silken threads. The silk is wound round the twig for about half an inch on each side, then carried down around the leaf-stalk to the cocoon, the whole being so firmly fastened that the leaf with the cocoon cannot be detached without much force. This is the cocoon of the Promethea emperor-moth. Besides the cherry, it is found on the sassa- fras, lilac, button-bush, and occa- sionally on other trees and shrubs. The moth escapes late in June or early in July. It is a handsome in- sect, and measures, when its wings are expanded, from three and a half to nearly four and a half inches across. The sexes differ very much in appearance: the wings of the male (Fig. 211) are brownish black, those of the female (Fig. 212) light reddish brown. In both, the wings are crossed by a wavy whitish line near the middle, and a clay-colored border along the hind edges. Both also have an eye-like black spot, with a pale-bluish crescent within, near the tip of the fore wings. Near the middle of each of the wings of the female there is an angular reddish-white spot, edged with black ; the same is visible on the under side of the wings of the male, but is seldom seen on^the upper side.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Saunders, William, 1836-1914. Philadelphia, J. B. Lippincott &amp

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1880
• bookpublisherphila
• bookyear1883