. A manual for the study of insects. Insects. Fig. 133.—Tegmina of male Gryllus. From this it will be seen that the large veins divide the wing- covers into disk-like membranous spaces. If the principal vein which extends diagonally across the base of the wing-. 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