[92] Nature, vol. iii. p. 165. Professor Meldola observed that specimens of Danais and Euplaea in collections were less subject to the attacks of mites (Proc. Ent. Soc., 1877, p. xii.); and this was corroborated by Mr. Jenner Weir. Entomologist, 1882, vol. xv. p. 160.
[93] See Darwin's Descent of Man, p. 325.
[94] Transactions of the Entomological Society of London, 1869, p. 21.
[95] Ibid., p. 27.
[96] Nature, vol. iii. p. 147.
[97] Stainton's Manual of Butterflies and Moths, vol. i. p. 93; E.B. Poulton, Proceedings of the Zool. Soc. of London, 1887, pp. 191-274.
[98] See Transactions of the Linnean Society, vol. xxiii. pp. 495-566, coloured plates.
[99] These butterflies are now divided into two sub-families, one of which is placed with the Danaidae; but to avoid confusion I shall always speak of the American genera under the old term Heliconidae.
[100] R. Meldola in Ann. and Mag. of Nat. Hist., Feb. 1878, p. 158.
[101] See Trans. Linn. Soc., vol. xxv. Wallace, on Variation of Malayan Papilionidae; and, Wallace's Contributions to Natural Selection chaps. iii. and iv., where full details are given.