. The biology of insects. Insects -- Biology. Fig. 76.—a, Sawfiy (Emphytus canadenns)^ female, North America; b, caterpillar (side view); c, cocoon; d, pupa (side view), X 4. From F. H. Chittenden ( Dept. Agric. Ent. Bull. 27, 1901). fore-leg with only one spine, and the hind abdominal segment produced backwards into a spine-like process. This in the female is very long, and the prominent ovipositor extends below it. By means of this ovipositor borings are made in wood and the eggs deposited there. The larvae have very short thoracic legs and no pro-legs. There are less than a hundred spe
. The biology of insects. Insects -- Biology. Fig. 76.—a, Sawfiy (Emphytus canadenns)^ female, North America; b, caterpillar (side view); c, cocoon; d, pupa (side view), X 4. From F. H. Chittenden ( Dept. Agric. Ent. Bull. 27, 1901). fore-leg with only one spine, and the hind abdominal segment produced backwards into a spine-like process. This in the female is very long, and the prominent ovipositor extends below it. By means of this ovipositor borings are made in wood and the eggs deposited there. The larvae have very short thoracic legs and no pro-legs. There are less than a hundred species of this family known—a great contrast as compared with the multitude of Tenthredinidae. The Apocrita form that sub-order of Hymenoptera whose members have a marked constriction or waist behind. 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 Carpenter, George H. (George Herbert), 1865-1939. New York, The Macmillan Company
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