. Elements of zoology, or, Natural history of animals / ed. by Reese. Zoology. 352 ZOOLOGY. section, consists of insects of small size, but which are remarkable for the grotesqueness of the forms which many of them assume. Some inhabit this country, and are known by the names of cuckoo-spits and frog-hoppers ; but the most singular species are confined to the tropics. The curious appendages represented in the accompanying figures of a Brazilian species, result from an extraordinary. Bocydium Globulare. Bocydium Cruciatutn. development of the first segment of the thorax. The insects of thi


. Elements of zoology, or, Natural history of animals / ed. by Reese. Zoology. 352 ZOOLOGY. section, consists of insects of small size, but which are remarkable for the grotesqueness of the forms which many of them assume. Some inhabit this country, and are known by the names of cuckoo-spits and frog-hoppers ; but the most singular species are confined to the tropics. The curious appendages represented in the accompanying figures of a Brazilian species, result from an extraordinary. Bocydium Globulare. Bocydium Cruciatutn. development of the first segment of the thorax. The insects of this family are often beautifully varied in their colours ; they are constantly found amongst plants and on trees, upon the juices of which they subsist in all their stages. Of the best known species of this country, the larva and pupa invest themselves with a frothy secretion, whence the vulgar name is derived. Some of this tribe are em- ployed by certain species of ants for the same purpose as the Aphides, having the power of supplying them with a saccharine fluid. 585. Section II. Dimera.—Of the Dimerous Homop- tera, the most remarkable family is that of Aphid*:, com- monly known as Plant-lice, which is extremely obnoxious on account of the injuries committed by its members against almost every kind of vegetable. The Aphides live in great numbers upon the surface of the plant, and suck the juices, by means of their proboscis, from the young shoots, leaves, stems, and even roots. They thus greatly weaken its vigour, and often distort young shoots and I aves ; some species cause little gall-like excrescences by the irritation they produce. From two horn-like processes 626. What of the variety in the next family ? 627. Describe the 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 Reese, David Meredi


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