. Insect architecture. Insects. HAWTHORN-WEEVIL. 389 cell having been broken off, and from the juices of the branch having been dried up, the insect went through its regular changes, and appealed in the form of a small greyish-brown beetle of the weevil. Cull of the Hawthorn- Weevil, drawn from specimen. a, opened to show the grub, family. The most remarkable circumstance in the case in question was the apparent inability of the grub to construct a fresh cell after the first was in- jured,—proving, we think, beyond a doubt, that it is the puncture made by the parent insect when the egg is depo
. Insect architecture. Insects. HAWTHORN-WEEVIL. 389 cell having been broken off, and from the juices of the branch having been dried up, the insect went through its regular changes, and appealed in the form of a small greyish-brown beetle of the weevil. Cull of the Hawthorn- Weevil, drawn from specimen. a, opened to show the grub, family. The most remarkable circumstance in the case in question was the apparent inability of the grub to construct a fresh cell after the first was in- jured,—proving, we think, beyond a doubt, that it is the puncture made by the parent insect when the egg is deposited, that causes the exudation and sub- sequent concretion of the juices forming the gall. These galls were very abundant during the summer of 1830* A few other instances of beetles producing galls are recorded by naturalists. Kirby and Spence have ascertained, for example, that the bumps formed on the roots of kedlock or charlock (Sinapis arvensis) are inhabited by the larvae of a weevil (Citrndio contractus, Marsham ; and Rhynchauiws assimilis, Fabr.) ; and it may be reasonably supposed that either the same or similar insects cause the clubbing * J. R. z 3. 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 Rennie, James, 1787-1867. London, M. A. Nattali
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectinsects, bookyear1846
