Archive image from page 360 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele187301darw Year: 1873 Chap. X.] ORTHOPTERA. 347 wings, the female being wingless, it is remarkable that the thighs 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 an


Archive image from page 360 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele187301darw Year: 1873 Chap. X.] ORTHOPTERA. 347 wings, the female being wingless, it is remarkable that the thighs 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 orthopterous insect; for in the male the whole body has been converted


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