. A manual for the study of insects. Insects. 111,4^ VIIi Fig. 522.—Wing of gall-gnat. species cause the growth of galls on plants; some of which are sure to be found by any close observer. Other species arrest the growth of the plants they infest, and thus cause. 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. C
. A manual for the study of insects. Insects. 111,4^ VIIi Fig. 522.—Wing of gall-gnat. species cause the growth of galls on plants; some of which are sure to be found by any close observer. Other species arrest the growth of the plants they infest, and thus cause. 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
