. Evenings at the microscope : or, Researches among the minuter organs and forms of animal life . Zoology; Microscopy; Microscopes. 162 EVENINGS AT THE MICROSCOPE. cakes ; and being connected only at one end of the long axis, they open and shut at the pleasure of the animal, like a long pocket memorandum-book of three leaves. But this structure is seen to still greater advantage in the much larger Cockchafer, so abundant in May in some seasons. For here the joints composing the club are much more numerous (seven in the male, six in the female), and they are proportionally longer and thinner, a
. Evenings at the microscope : or, Researches among the minuter organs and forms of animal life . Zoology; Microscopy; Microscopes. 162 EVENINGS AT THE MICROSCOPE. cakes ; and being connected only at one end of the long axis, they open and shut at the pleasure of the animal, like a long pocket memorandum-book of three leaves. But this structure is seen to still greater advantage in the much larger Cockchafer, so abundant in May in some seasons. For here the joints composing the club are much more numerous (seven in the male, six in the female), and they are proportionally longer and thinner, and therefore more leaf-like. The insect widely expands them, evidently to receive impressions from the atmo-. ANTENNA OF COCKCHAFEE. sphere ; when alarmed, they are closed and withdrawn beneath the shield of the head, but on the first essay towards escape, or any kind of forward movement, the leaves are widely opened, and then, after an instant's pause to test the perceptions on the sensorium, away it travels. In some Beetles each joint of the series has one of its outer angles more developed than the other, and so pro- duced as to make, with the rest of the joints, a saw-like edge; you may see an example in this Click-beetle or. 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 Gosse, Philip Henry, 1810-1888. London : Society for Promoting Christian Knowledge
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