Chap. X.] 



ORTHOPTERA. 



547 



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 



Fig. 14.— Pnenmora (from specimens in the Biitish Museum). Upper figure, 

 male ; lower figure, female. 



