. Nature-study; a manual for teachers and students. Nature study. 244 NATURE-STUDY jointed body is gray or brown or green to match the twigs of the tree, and the long, thin body and legs are like thin, green branches. Many of the Canker-worms or Inch- worms resemble twigs very closely, and when disturbed assume motion- less, twig-like attitudes. One of the most striking illustra- tions of protective coloration is the Kallima, a South American butterfly, which has blue and orange colors on the upper side of its wings. This butterfly, when resting, assumes a leaf-Uke attitude, and the wings are
. Nature-study; a manual for teachers and students. Nature study. 244 NATURE-STUDY jointed body is gray or brown or green to match the twigs of the tree, and the long, thin body and legs are like thin, green branches. Many of the Canker-worms or Inch- worms resemble twigs very closely, and when disturbed assume motion- less, twig-like attitudes. One of the most striking illustra- tions of protective coloration is the Kallima, a South American butterfly, which has blue and orange colors on the upper side of its wings. This butterfly, when resting, assumes a leaf-Uke attitude, and the wings are closed, exposing only the leaf-colored under side. There are even lines that mimic the venation of a leaf, so as to make the illusion more complete. A number of our native butterflies, with conspicuous upper wing-surfaces, conceal themselves on the leaves and bark of a tree, the under side of the closed wings mimicking the color of these surfaces. Moths also are pro- tectively colored, usually on the upper Fig. 89. Walking-stick. surface of the first pair of wings. In the description of the viceroy butterfly, reference was made to the fact that it put on, as it were, the livery of another butterfly, which for some reason seems to be immune to the attacks of birds, namely, the Monarch. Many other such cases of mimicry may be 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 Holtz, Frederick Leopold, 1870-. New York, C. Scribner's Sons
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