. Nature-study; a manual for teachers and students. Nature study. TYPICAL INSECTS 185 the abdominal segments. This jointedness is a character- istic of all insects, and is extended also to the feelers, legs, and mouth-parts. The grasshopper has six legs, composed of several stiff seg- ments and a jointed foot terminated by minute forked claws that act like pincers and are used for grasping. The legs of insects are attached to the chest re- gion, not to the abdomen, as some- times seems to be the case. In the grasshopper the first two pairs of legs are not very strong, and are used for crawling
. Nature-study; a manual for teachers and students. Nature study. TYPICAL INSECTS 185 the abdominal segments. This jointedness is a character- istic of all insects, and is extended also to the feelers, legs, and mouth-parts. The grasshopper has six legs, composed of several stiff seg- ments and a jointed foot terminated by minute forked claws that act like pincers and are used for grasping. The legs of insects are attached to the chest re- gion, not to the abdomen, as some- times seems to be the case. In the grasshopper the first two pairs of legs are not very strong, and are used for crawling and holding to a support. But the last pair are es pecially large and powerful, and are used for making high and long ,, „ , ^ 00 o tiG. 45. Part 01 Compound Eye leaps. Observe how a locust uses of a Dragon-fly. his leffS (Photomicrograph.) On the back of the thorax, from the second and third segments, arise the two pairs of wings, which the grass- hopper folds up like a fan when not in use. The first pair are narrower and a trifle stiffer than the second, and protect the last pair somewhat when folded. Unfold the wings and examine them. Watch a grasshopper fly. In flying the wings are extended at the sides and expanded. The hind wings show bright colors in certain species. Hold an expanded wing up to the light, and see that it has a network of stiff ribs or veins running through the more delicate membrane. These act as a framework for the wings. The veins of the wings of insects are differently and characteristically arranged. Though grasshoppers are generally seen to fly only short distances, they have. 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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