. Elements of entomology: an outline of the natural history and classification of British insects. Insects -- Great Britain. 146 THE TRIMERA. men, and there undergoes its change to a pupa. In some cases the skin of the larva merely splits along the back, to give room for the broader pupa, which is then enclosed in its old integument as in a sort of cradle, but in most instances the larva skin slides back to the tail of the pupa, where it remains as a sort of wrinkled protecting case. During its pupa state, which, however, lasts but a short time (rarely more than ten or twelve days), the insect
. Elements of entomology: an outline of the natural history and classification of British insects. Insects -- Great Britain. 146 THE TRIMERA. men, and there undergoes its change to a pupa. In some cases the skin of the larva merely splits along the back, to give room for the broader pupa, which is then enclosed in its old integument as in a sort of cradle, but in most instances the larva skin slides back to the tail of the pupa, where it remains as a sort of wrinkled protecting case. During its pupa state, which, however, lasts but a short time (rarely more than ten or twelve days), the insect remains perfectly motionless; but the pupae of some species, when touched, raise themselves upon their tails, and sometimes repeat this action several times. It must not be supposed, however, that all the species of this tribe are carnivorous, for although the majority confine themselves to the destruction of the injmious Aphides and Cocci, some are themselves very destructive to vegetation. One of our British species, the Ejnlachna globosa, is said occasionally to inflict considerable injury upon the crops of Lucerne, and other leguminous plants on the Continent. This circumstance, coupled with the resemblance of the larvae, serves to show the close alliance between this and the preceding tribe, which might otherwise appear rather doubtful if we considered only the carnivorous habits of most of the Trimerous Beetles. I i. Cetonia aurata. I. 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 Dallas, W. S. (William Sweetland), 1824-1890. London, J. van Voorst
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectinsectsgreatbritain
