Economic entomology for the farmer Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . economicentomolo00insmit Year: 1896 Tenebrioides corticalis, the ' cadelle.'âa, larva; adult; c toj, structural details. rarely very numerous, and may be kept in check as recom- mended on a previous page for the Ciictijidcz. There are other small families in the clavicorn series, some of them interesting enough to the entomologist, but none of im- portance economically or likely to attract the attention of the cas- ual observer;
Economic entomology for the farmer Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . economicentomolo00insmit Year: 1896 Tenebrioides corticalis, the ' cadelle.'âa, larva; adult; c toj, structural details. rarely very numerous, and may be kept in check as recom- mended on a previous page for the Ciictijidcz. There are other small families in the clavicorn series, some of them interesting enough to the entomologist, but none of im- portance economically or likely to attract the attention of the cas- ual observer; hence hardly subjects for de- scription here. The Serricornia, or 'saw-horned' series, begins with the family Dascyllida:, contain- ing mostly small forms found on dead or dy- ing trees or branches, in which the larvae probably live. None are of economic im- portance, a fact which is also true of the next family, RhipiceridcE, This latter, indeed, contains only five species, all accounted rarities in collections, and believed to breed in cedars. The {â AvciAy Elateridce, 'spring-beetles,' 'click-beetles,' or ' snapping-beetles,' contains numerous troublesome forms, and is easily distinguishable in all its stages. The beetles have the prothorax very loosely jointed to the rest of the body, and on the under side a curved ^' process fits into a cavity of the meso-thorax. When a specimen is placed on its back it bends the extremities so as to raise the middle of the body from the surface, and to bring the tip of the curved process to the edge of the cavity. A sudden release of muscular tension reverses matters, sends the insect into the air a few inches, and this '' snapping'' or jumping performance is repeated until it alights on its feet. In the larval stage the term ' wire-worms' expresses the appearance and texture of the creature, and brings to mind at once an agent of destruction hardly surpassed in the Fig. An Elater from side, to show the prosternal process.
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