A summary of the chief aspects of the question is contained in Beddard's Animal Coloration, London, 1892. An account of the subject with numerous illustrations has been given by Haase, "Untersuchungen über die Mimicry," Bibl. Zool. iii. 1893, Heft viii. Those who wish to see the case as stated by an advocate may refer to Professor Poulton's work, The Colours of Animals (International Scientific Series), lxviii. London, 1890.
P. Zool. Soc. London, 1883, p. 372.
Kosmos, xix. 1886, p. 353. The Insects alluded to by both these naturalists are now, we believe, placed in the Family Syntomidae (see p. [388]).
Stett. ent. Zeit. li. 1891, p. 264; and lvi. 1895, p. 234.
For an account of the antennae of butterflies, see Jordan, Nov. Zool. v. 1898, pp. 374-415.