Elementary textbook of economic zoology Elementary textbook of economic zoology and entomology . elementarytextbo00kell Year: [c1915] FIG. 7 Q . — Water- tiger, the larva of the predaceous water-bee- tle, Dyticifa sp. (Nat- ural size.) FIG. 80.—The predaceous water-beetle, Dy- tlcus sp. pupa and adult. (Natural size.) the large membranous hind wings. They all have strong bit- ing mouth-parts and a firm dark chitinized cuticle or outer body-wall. The body is usually short and robust with its segments well fused together. There is much variety in the character of the antennae and feet, and thes
Elementary textbook of economic zoology Elementary textbook of economic zoology and entomology . elementarytextbo00kell Year: [c1915] FIG. 7 Q . — Water- tiger, the larva of the predaceous water-bee- tle, Dyticifa sp. (Nat- ural size.) FIG. 80.—The predaceous water-beetle, Dy- tlcus sp. pupa and adult. (Natural size.) the large membranous hind wings. They all have strong bit- ing mouth-parts and a firm dark chitinized cuticle or outer body-wall. The body is usually short and robust with its segments well fused together. There is much variety in the character of the antennae and feet, and these differences are largely relied on in classifying beetles into different families. The eggs are laid underground, or on leaves or twigs or in branches or trunks of live trees, in fallen logs or in decaying
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