. Homes without hands : being a description of the habitations of animals, classed according to their principle of construction . Animals. THE lOEDSrEUMOlT FLIES. 49^. Parasitic Insects. Cocoon of Oak-egger Moth iCryptua /umipennis). Cocoon of Fuss Moth iPcmiecua glaucopterus). Cocoon from New South Wales iPimpla). Cocoon of Goat Moth iLamproaa setosa). ments, and then flying off again. They look very pretty, harm- less creatures, but, in fact, they are doing all the harm that lies in their power. Forty or fifty eggs are thus laid on a plant, and if only one quarter of the number are hatched,
. Homes without hands : being a description of the habitations of animals, classed according to their principle of construction . Animals. THE lOEDSrEUMOlT FLIES. 49^. Parasitic Insects. Cocoon of Oak-egger Moth iCryptua /umipennis). Cocoon of Fuss Moth iPcmiecua glaucopterus). Cocoon from New South Wales iPimpla). Cocoon of Goat Moth iLamproaa setosa). ments, and then flying off again. They look very pretty, harm- less creatures, but, in fact, they are doing all the harm that lies in their power. Forty or fifty eggs are thus laid on a plant, and if only one quarter of the number are hatched, they are quite capa- ble of eating every leaf. In process of time they burst from the egg-shell and commence their "business of eating, which is carried on without cessation throughout the whole time of the larval ex- istence, with a few short intervals, while they change their skins. When they are full grown they crawl away from the plant to some retired spot, and there suspend themselves, preparatory to changing into the pupal condition. A few of them succeed in this task, but the greater number never achieve the feat, having been the unwilling nourishers of the ichneumon flies. Just be- fore the larva is about to pass into the pupal state, a number of whitish grubs burst from its sides, and each immediately sets to work at spinning a little yellow oval cocoon. The walls of the cocoon are hard and smooth, especially in the interior; but the outside is covered with loose floss-silk, which serves to bind all the cocoons together. Generally they are very loosely connect- ed ; but h group of these little objects is now before me, where the cocoons are formed into a flattish oval mass, about the size II. 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 Wood, J. G. (John George), 1827-1889; Keyl, Friedrich W
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Keywords: ., bookauthorwo, bookcentury1800, bookdecade1860, booksubjectanimals
