. Common injurious insects of Kansas. Insect pests. goes, but from them come the eggs from which the ravaging larva? issue. The next stage is the pupal or chrysalid stage, in which the in- sect lies inactive within a hard protecting shell or case. This stage is passed either in the ground or in some place of shelter beneath stones, or boards, in crev- ices of bark, or even bur- ied in seeds (as with the Pea- and Bean-weevils), or in the trunks of trees (as with the Apple-tree Borer). The changing from the larval stage to Fig. 4. Fall Web-worm Moth, an insect which un- # p ° dergoes" compl
. Common injurious insects of Kansas. Insect pests. goes, but from them come the eggs from which the ravaging larva? issue. The next stage is the pupal or chrysalid stage, in which the in- sect lies inactive within a hard protecting shell or case. This stage is passed either in the ground or in some place of shelter beneath stones, or boards, in crev- ices of bark, or even bur- ied in seeds (as with the Pea- and Bean-weevils), or in the trunks of trees (as with the Apple-tree Borer). The changing from the larval stage to Fig. 4. Fall Web-worm Moth, an insect which un- # p ° dergoes" complete metamorphosis;" a, larval form; this quiescent Or pupal &, pupal form; c, adult or moth form. , . stage is called pupation, or, the larva is said to pupate. These terms are frequently used hereafter. During this stage the insect takes no food, but is un- dergoing within its protecting case the marvelous changes in bodily structure which result in the issuance of the beautiful white- and rose-tinted moth, with its four wings and deli- cate sucking tube, from a chrys- alis which was formed by the pupation of the crawling, bit- ing, sluggish, green Maple- worm. The fourth stage is that of the adult insect; the one real mission of which is the perpet- uation of the species. As be- fore said, no injury is done by the adult moths and butterflies, nor by the four-winged hymen- opterous insects, (the Raspberry- and Rose-slug Saw-flies,) but many beetles are seriously injurious in the adult stage, as the Cucumber Beetle and others. All insects, however, do not undergo such a complete metamor- phosis, and four distinct stages cannot be made out in the lives. 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 Kellogg, Vernon L. (Vernon Lyman), 1867-1937; Kansas. University. Dept. of entomology. [from old cat
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Keywords: ., bookauthorkelloggv, bookcentury1800, bookdecade1890, bookyear1892
