. Zoology : for students and general readers . Zoology. SOUJSfDS OF IWSECTS. 3G9 Organs of hearing may be situated either on the fore legs, as in the green grasshoppers, katydids, or at the base of the abdomen, as in the locusts. Most OrthoiHera have a large ovipositor by which they burrow in the earth or into soft wood, and deposit their eggs singly or in masses. Mantis (Fig. 333) lays its eggs in a cocoon-like mass. Many Orthoptera, as the crickets, green grasshoppers, katydids, etc., and locusts, produce loud, shrill Fig. —An African Mantis, or soothsayer, with its egg-maee.—F
. Zoology : for students and general readers . Zoology. SOUJSfDS OF IWSECTS. 3G9 Organs of hearing may be situated either on the fore legs, as in the green grasshoppers, katydids, or at the base of the abdomen, as in the locusts. Most OrthoiHera have a large ovipositor by which they burrow in the earth or into soft wood, and deposit their eggs singly or in masses. Mantis (Fig. 333) lays its eggs in a cocoon-like mass. Many Orthoptera, as the crickets, green grasshoppers, katydids, etc., and locusts, produce loud, shrill Fig. —An African Mantis, or soothsayer, with its egg-maee.—From Monteiro's Angola. which are sexual calls. They stridulate in three ways— , first, by rubbing the base of one wing-cover on the other (crickets and green grasshoppers) ; second, by rub- bing the inner surface of the hind legs against the outer surface of the front wings (some locusts) ; third, by rub- bing together the upper surface of the front edge of the hind wings and the under surface of the wing-covers during flight (some locusts).. 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 Packard, A. S. (Alpheus Spring), 1839-1905. New York : Henry Holt
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectzoology, bookyear1879
