Archive image from page 360 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele187201darw Year: 1872 Chap. X.] ORTHOPTERA. 347 wings, the female being wingless, it is remarkable that the thio-hs are not rubbed in the usual manner against the wing-covers; but this may perhaps be accounted for by the unusually small size of the hind-legs. I have not been able to examine the inner surface of the thighs, which, judging from analogy, would be finely serrated. The species of Pneumora have been more profoundly modified for the sake of stridulation than a

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Archive image from page 360 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele187201darw Year: 1872 Chap. X.] ORTHOPTERA. 347 wings, the female being wingless, it is remarkable that the thio-hs are not rubbed in the usual manner against the wing-covers; but this may perhaps be accounted for by the unusually small size of the hind-legs. I have not been able to examine the inner surface of the thighs, which, judging from analogy, would be finely serrated. The species of Pneumora have been more profoundly modified for the sake of stridulation than any other orlhopterous insect; for in the male the whole body has been converted

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