. Elementary entomology. Insects. with a well-developed head bearing biting mouth-parts and small ocelli on either side. The thorax bears three pairs of jointed legs, which terminate in a single claw, and the back of the prothorax forms a hard shield, thepronotum. The ab- dominal segments are very similar and bear from one to five pairs of short, fleshy, unseg- mented false legs, or prolegs, which termi- nate in a circle of small hooks, one pair of which is always borne by the anal segment. The caterpillars of many moths pupate in FIG. 258. Luna moth, showing pectinate, or feath- little Cells,
. Elementary entomology. Insects. with a well-developed head bearing biting mouth-parts and small ocelli on either side. The thorax bears three pairs of jointed legs, which terminate in a single claw, and the back of the prothorax forms a hard shield, thepronotum. The ab- dominal segments are very similar and bear from one to five pairs of short, fleshy, unseg- mented false legs, or prolegs, which termi- nate in a circle of small hooks, one pair of which is always borne by the anal segment. The caterpillars of many moths pupate in FIG. 258. Luna moth, showing pectinate, or feath- little Cells, which they ered, form of moth antennae hollow OLlt ill the (After S. J. Hunter) ground, but lllOSt of them spin silken co- coons, within which they pupate. Some are thin, flimsy affairs, while others, like those of the silkworm, contain a large amount of silk and are very firmly built, forming a warm home for the hibernating pupae. Butterfly larvae spin no co- coons, and -the pupae, or chrysalids, hang pendent from the food plant or some near-by object, to which they are lashed by a strand of silk around the body. J . FIG. 259. A skipper (Etidamus ba- The order is one of the largest, thyllns}, sh0wing recurved tips of including over sixty-six hundred spe- cies in this country, and contains many of our most serious pests, while very few of its members are beneficial. The families are largely distinguished by the wing venation, which is difficult to see, so that it is exceedingly hard to arrange them in any natural and easily. antennas (After S. J. Hunter). 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 Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882. Boston, New York [etc. ] Ginn and Company
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