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By Charles T Brues

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Extra resources for CLASSIFICATION OF INSECTS

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I S ~ P T E R A (Page 93) Tarsi two-jointed; cerci one-jointed; antenna nine-jointed; minute species . . . . . . . . . . . . ZORAPTERA (Page 100) 53. Body cylindrical, caterpillar-like . . MEC ~ P T E R A(Page 189) Body more or less depressed, not caterpillar-like. . . . . . 54 54. Mandibles united m-ith the corresponding maxillze to form sucking jaws (Fig. 975). . . . . . . . .. L a r v a of N E U R ~ P T E R A Mandibles almost always separate from the maxill~e(Figs. 972, 973, 976, 977, 979, 980, 983, 984, 986, 992).

Larvae of ODONATA Lower lip not capable of being thrust forward and not hooked. . . . . . . . . . . . . . . . . . . . . . . 67 Abdomen without false legs. . . . . . . . . . . . . . . A few larvae of LEPIDOPTERA The three divisions of the thorax loosely united; antennae and caudal filaments long and slender. . L a w s of P L E C ~ P T E R A Thoracic divisions not constricted; antennae and caudal filaments short (also a few Trichoptera here).

T H Y S A N ~ P T E R A (Page 72) Wings broader and most often supplied with veins, if rarely somewhat linear the tarsi have more than two joints and the last tarsal joint is not swollen. . . . . . . . . . . . . . . 14 Hind wings with the anal area folded in plaits, fan-like, in repose, 1 If very rarely (one African genus) with apical forceps-like appendages, the wings are not as in Dermaptera. BRUES AND MELANDER : CLASSIFICATION OF INSECTS 31 larger than the fore wings; antennz prominent; veins usually numerous; larvz aquatic.

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