A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist . , Loew, Meinert, Mik, Nicolet, Osten Sacken, Pictet, Koussel,Schaeffer (1754), Schauin, Schenk, J. B. Smith, Thompson, Buchanan-White, Brunner von Wattle-Wyll, Weise, Wyenbergh. The subject of copulation has been treated by Hoffer, Hartig, Schiedeknecht,Verhoeff, etc. THE ARMATURE OF INSECTS: , HAIRS, SCALES, TUBERCLES, ETC. The cuticula. - - The integument is externally either smooth ands
A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist . , Loew, Meinert, Mik, Nicolet, Osten Sacken, Pictet, Koussel,Schaeffer (1754), Schauin, Schenk, J. B. Smith, Thompson, Buchanan-White, Brunner von Wattle-Wyll, Weise, Wyenbergh. The subject of copulation has been treated by Hoffer, Hartig, Schiedeknecht,Verhoeff, etc. THE ARMATURE OF INSECTS: , HAIRS, SCALES, TUBERCLES, ETC. The cuticula. - - The integument is externally either smooth andshining or variously punctured, granulated, tuberculated, striated,or hairy. In certain ordersthe skin is clothed withflattened setee or scales,while many forms, as somecaterpillars (Figs. 208,209),beetles (Fig. 210), etc., areprotected by spines, horns,etc., these in adult insectsoften forming secondarysexual characters, usually being more developed in the males thanin the females. The cuticula is not always smooth, but is often finely granulated or evenminutely spinulated. On the abdominal segments of Anabrus, as observed by Minot, the cuticula is armed withmicroscopic conical nodules scattered. FIG. 208.—Larva of Dryocampa rubicunda, stageII. — Bridgham del.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
