. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. IX WAR^^ING COLORATIOX AXD :^IIMICRY 247 insects are l)lack, Avith the apex of the fore wings ochre coloured, and the outer half of the hind wings bright orange. The accompanying woodcuts (for the use of which I am indebted to Mr. John ]\Iurray of the Challenger Office) well exhibit their striking resemblance to each Fig. 2-i.—Opthalmis lincea (Agaristidse). Artaxa simulans (Liparidse). In Africa exactly similar phenomena recur, species of Papilio and of Diadema
. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. IX WAR^^ING COLORATIOX AXD :^IIMICRY 247 insects are l)lack, Avith the apex of the fore wings ochre coloured, and the outer half of the hind wings bright orange. The accompanying woodcuts (for the use of which I am indebted to Mr. John ]\Iurray of the Challenger Office) well exhibit their striking resemblance to each Fig. 2-i.—Opthalmis lincea (Agaristidse). Artaxa simulans (Liparidse). In Africa exactly similar phenomena recur, species of Papilio and of Diadema mimicking Danaidae or Acrteidas with the most curious accuracy. Mr. Trimen, who studied this subject in South Africa, has recorded eight sj^ecies or varieties of Diadema, and eight of Papilio, which each mimic some species of Danais; Avhile eight species or varieties of Panop?ea (another genus of Xymphalidse), three of Melanitis (Eury- telidae), and two of Papilio, resemble with ecpial accuracy some species of Acraea.^ 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 larvae and pupae; their great abundance, slow flight, and disregard of concealment; and he states that while lizards, mantidae, and dragonflies all hunt butterflies, and the rejected mngs are to be found abundantly at some of their ^ 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 ; New York : Macmillan
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