Figures 2.23

The female abdomen and ovipositor:
Figures 2.23. The female abdomen and ovipositor:

(a) lateral view of the abdomen of an adult tussock moth (Lepidoptera: Lymantriidae) showing the substitutional ovipositor formed from the extensible terminal segments; (b) lateral view of a generalized orthopteroid ovipositor composed of appendages of segments 8 and 9; (c) transverse section through the ovipositor of a katydid (Orthoptera: Tettigoniidae). T1—T10, terga of first to tenth segments; S2—S8, sterna of second to eighth segments. ((a) After Eidmann 1929; (b) after Snodgrass 1935; (c) after Richards & Davies 1959)

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  The left wings of a range of insects showing some of the major wing modifications:
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  Male external genitalia.