. Elementary studies in insect life. Insects. FIG. 14. Newly hatched cater- pillar of the black swallowtail on flower-stern of wild parsley. Enlarged. When first this larva measures itself upon the flower- stalk it is three-twenty-fifths of an inch long,— three times the diameter of the egg from which it came. After stretching itself and resting a moment it turns around and makes its first meal off its shell,— not prompted so much by hunger as by the protective instinct which leads it to en- deavor to remove all traces likely to lead to its discovery by an enemy. As it stretches itself out aga
. Elementary studies in insect life. Insects. FIG. 14. Newly hatched cater- pillar of the black swallowtail on flower-stern of wild parsley. Enlarged. When first this larva measures itself upon the flower- stalk it is three-twenty-fifths of an inch long,— three times the diameter of the egg from which it came. After stretching itself and resting a moment it turns around and makes its first meal off its shell,— not prompted so much by hunger as by the protective instinct which leads it to en- deavor to remove all traces likely to lead to its discovery by an enemy. As it stretches itself out again, study it under the hand-lens. It has the normal number of segments, twelve besides the head. Each segment has six p r o t u b erances, and from each of these in turn grow five or six hairs, making in all a rather bristling little crea- ture. The first three segments of the body, known as the thorax, have true jointed legs, each with a horny claw for grasping the supporting twig; the sixth, sev- enth, eighth, ninth and twelfth have each a pair of soft unjointed legs, or pads known as prolegs, aids in locomotion and in maintaining position " when the Avind ; Its purposes, intuitions and instincts have been placed in FIG. 15. Diagram showing normal number of seg- ments in a 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 Hunter, Samuel John, 1866-1946. Topeka, Kan. , Crane & company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1902
