. Animal studies. ADAPTATIONS 307 piercing ovipositors, by means of which the eggs are de- posited in the ground or in the leaves or stems of green plants, or even in the hard wood of tree-trunks. Some of. -e s. the scale insects se- crete wax from their bodies and form a large, often beautiful egg-case, attached to and nearly covering the body in which eggs are deposited (Fig. 179). The various gall insects lay their eggs in the soft tissue of plants, and on the hatching of the larvae an abnormal growth of the plant occurs about the young insect, forming an in- closing gall that serves not on
. Animal studies. ADAPTATIONS 307 piercing ovipositors, by means of which the eggs are de- posited in the ground or in the leaves or stems of green plants, or even in the hard wood of tree-trunks. Some of. -e s. the scale insects se- crete wax from their bodies and form a large, often beautiful egg-case, attached to and nearly covering the body in which eggs are deposited (Fig. 179). The various gall insects lay their eggs in the soft tissue of plants, and on the hatching of the larvae an abnormal growth of the plant occurs about the young insect, forming an in- closing gall that serves not only to protect the insect within, but to furnish it with an abun- dance of plant-sap, its food. The young insect remains in the gall until it completes its develop- ment and growth, when it gnaws its way out. Such insect galls are especially abun- dant on oak trees (Fig. 180). The care of the eggs and the young of the social insects, as the bees and ants, are de- scribed in Chapter 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 Jordan, David Starr, 1851-1931; Kellogg, Vernon L. [from old catalog].
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Keywords: ., bookauthorjordanda, bookcentury1900, bookdecade1900, bookyear1903
