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In the case of the Heliopathes and Oryctes there can hardly be a doubt that the males stridulate in order to call or to excite the females; but with most beetles the stridulation apparently serves both sexes as a mutual call. Beetles stridulate under various emotions, in the same manner as birds use their voices for many purposes besides singing to their mates.
Crossing of races, effects of the. Crossoptilon auritum, adornment of both sexes of; sexes alike in. Crotch, G.R., on the stridulation of beetles; on the stridulation of Heliopathes; on the stridulation of Acalles; habit of female deer at breeding time. Crow, Indians, long hair of the. Crow, young of the. Crows, vocal organs of the; living in triplets. Crows, carrion, new mates found by.
Hedge-warbler, young of the. Heel, small projection of, in the Aymara Indians. Hegt, M., on the development of the spurs in peacocks. Heliconidae, mimicry of, by other butterflies. Heliopathes, stridulation peculiar to the male. Heliothrix auriculata, young of. Helix pomatia, example of individual attachment in. Hellins, J., proportions of sexes of Lepidoptera reared by.
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