. The American entomologist. Entomology. 108 THE AMERICAN -Black. It makes its appearance in the winged state in September, and early in tiie following sum- mer the green and shining hollow gall, with its skin as thin as tjiat of a capsicum, may be dis- covered almost full grown upon cottonwoods, and occasionally upon balsam poplars. At this l)eriod there is always found a single wingless Plant-louse inside it, which has by her sole ex- ertions caused the growth of the gall, and which will subsequently give birth inside it to a very large and flourishing family of young Plant- l
. The American entomologist. Entomology. 108 THE AMERICAN -Black. It makes its appearance in the winged state in September, and early in tiie following sum- mer the green and shining hollow gall, with its skin as thin as tjiat of a capsicum, may be dis- covered almost full grown upon cottonwoods, and occasionally upon balsam poplars. At this l)eriod there is always found a single wingless Plant-louse inside it, which has by her sole ex- ertions caused the growth of the gall, and which will subsequently give birth inside it to a very large and flourishing family of young Plant- lice, all of which will eventually acquire wings and leave the gall in the ensuing September. TiiK Sumac-gall (liliois, Fitch), Fig. »9.— This tomato-like gall occurs on the leaves both of the Smooth Sumac (lihiis (jlnhra) and the Stag- liorn Sumac (Blius tiipliinu), and in the States both of Illinois and New York. Like the preced- ing, its shell or skin is quite thin, and the winged flies arc found inside it in prodigious [Fife'. SO.). 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 Metcalf Collection (North Carolina State University). NCRS. New York : Max Jaegerhuber
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectentomology, bookyear1
