. Elements of zoölogy : a textbook. Zoology. HEXAPODA : COLEOPTEKA OE BEETLES. 319 FIG. 4H. is smooth and egg-like, the whole covering being a pupa- riurn-like case in which the larva becomes a pupa imme- diately after it is born. The spider-shaped Bat-ticks or Nycteribidse, which are parasites on the Bat, and the Bee-lice (Braulina), minute, wingless, blind insects, parasites on Bees, are other anom- alous forms of the Diptera. 4:. THE SUB-ORDER OF COLEOPTERA. The Coleoptera or Beetles are insects whose upper or anterior wings, called elytra, are more or less horny, and meet in a straight lin
. Elements of zoölogy : a textbook. Zoology. HEXAPODA : COLEOPTEKA OE BEETLES. 319 FIG. 4H. is smooth and egg-like, the whole covering being a pupa- riurn-like case in which the larva becomes a pupa imme- diately after it is born. The spider-shaped Bat-ticks or Nycteribidse, which are parasites on the Bat, and the Bee-lice (Braulina), minute, wingless, blind insects, parasites on Bees, are other anom- alous forms of the Diptera. 4:. THE SUB-ORDER OF COLEOPTERA. The Coleoptera or Beetles are insects whose upper or anterior wings, called elytra, are more or less horny, and meet in a straight line upon the top of the back; and in general there is a small triangular piece, called the scutellum, be- tween their bases. Their hind or under wings are thin, and when not in use are folded longitudinally and transversely. The Coleoptera have two pairs of jaws, which move side- wise, and the larvae, which are called grubs, undergo a complete transformation in coming to maturity. There are probably more than 100,000 species of Beetles, and they present a great diversity of form, size, color, structure, and habits. The name Coleoptera is from the Greek koleos, a sheath, and pteron, a wing. Some kinds, as the Tiger Beetles or Cicindelidte, have a large head, long antennae, and toothed mandibles, and are very rapacious in their habits. Their larvae are provided with powerful jaws, and are also rapacious. The larvae. A Beetle, Caterpillar-Hunter, Calosuma scrutator, 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 Tenney, Sanborn, 1827-1877. New York : Scribner
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