. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. TX WARNING COLORATION AND MIMICRY 247 insects are black, with the apex of the fore wings ochre coloured, and the outer half of the hind wings bright orange. The accompanying Avoodcuts (for the use of which I am indebted to Mr. John Murray of the Challenger Office) well exhibit their striking resemblance to each FIG. 24.—Opthahnis lineca (Agaristida-). Artaxa simulans (Liparidte). In Africa exactly similar phenomena recur, species of Papilio and of Diadema mimickin
. Darwinism; an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. TX WARNING COLORATION AND MIMICRY 247 insects are black, with the apex of the fore wings ochre coloured, and the outer half of the hind wings bright orange. The accompanying Avoodcuts (for the use of which I am indebted to Mr. John Murray of the Challenger Office) well exhibit their striking resemblance to each FIG. 24.—Opthahnis lineca (Agaristida-). Artaxa simulans (Liparidte). In Africa exactly similar phenomena recur, species of Papilio and of Diadema mimicking Danaidae or Acrseidse with the most curious accuracy. Mr. Trimen, who studied this subject in South Africa, has recorded eight species or varieties of Diadema, and eight of Papilio, which each mimic some species of Danais ; while eight species or varieties of Panopsea (another genus of Nymphalidse), three of Melanitis (Eury- telida;), and two of Papilio, resemble with equal accuracy some species of He has also independently observed the main facts on which the explanation of the phenomenon rests,—the unpleasant odour of the Danais and Acraea, extend- ing to their larvse and pupas; their great abundance, slow flight, and disregard of concealment; and he states that while lizards, mantidae, and dragonflies all hunt butterflies, and the rejected wings are to be found abundantly at some of their 1 See Trans. Linn. Soc., vol. xxvi., with two coloured plates illustrating cases of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wallace, Alfred Russel, 1823-1913. London and New York, Macmillan and co.
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