. A manual for the study of insects. Insects. HEMIPTERA, 173 Scale and of the Red Scale of the Orange ; and it may be s^^n at the smaller end of the scale of the Oyster-shell Bark-louse. The position of this cast skin in the scale differs in differ- ent genera, and forms a good character for classification. Closely allied species differ but little in the form of the scale. To distinguish these it is necessary to study the. Fig. 213.—Aspidiotus aurantii: scales on leaves of orang-e, natural size ; \a^ adult male' much enlarged; ^b^ scale of female enlarged; i<r, scale of male, enlarged. inse
. A manual for the study of insects. Insects. HEMIPTERA, 173 Scale and of the Red Scale of the Orange ; and it may be s^^n at the smaller end of the scale of the Oyster-shell Bark-louse. The position of this cast skin in the scale differs in differ- ent genera, and forms a good character for classification. Closely allied species differ but little in the form of the scale. To distinguish these it is necessary to study the. Fig. 213.—Aspidiotus aurantii: scales on leaves of orang-e, natural size ; \a^ adult male' much enlarged; ^b^ scale of female enlarged; i<r, scale of male, enlarged. insects themselves, which are found beneath the scales The distinctions between closely allied species are such, that it requires very close observation and much skill in this particular line to make* the determinations, a careful prepa- ration of the specimens and an excellent microscope being necessary requisites. The different species of scale-insects vary as regards their food habits. We find that certain species infest particular. 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
