. Insect architecture. Insects. GALL-APHIDES. 393 new colonies; and, during their migrations, attract the attention of the most incurious by the singularity of their appearance.*. Oalls produced on the leaves and leafstalks of the Poplar by Briosoma populi, with the various frrms of the insects, winged, not winged, and covered with wool, both of the natural size and magnified. On the black poplar there may be found, later in the season than the preceding, a gall of a very dif- ferent form, though, like the other, it is for the most part on the leaf-stalk. The latter sort of galls are of a spir
. Insect architecture. Insects. GALL-APHIDES. 393 new colonies; and, during their migrations, attract the attention of the most incurious by the singularity of their appearance.*. Oalls produced on the leaves and leafstalks of the Poplar by Briosoma populi, with the various frrms of the insects, winged, not winged, and covered with wool, both of the natural size and magnified. On the black poplar there may be found, later in the season than the preceding, a gall of a very dif- ferent form, though, like the other, it is for the most part on the leaf-stalk. The latter sort of galls are of a spiral form; and though they are closed, they open upon slight pressure, and appear to be formed of two laminae, twisted so as to unite. It is at this * J. 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
