. Animal coloration; an account of the principal facts and theories relating to the colours and markings of animals. Color of animals. COXTKXTS. Vll CHAPTER V. PR 0 TECT11 'E MTUT ('It Y. Mr. Bates' Theory.—Mimicry often found only in Females.—Are the Danaidte strongly scented, like the Heliconidae ?—Distastefulness sometimes limited to a Few Individuals.—Resistent Structure of the Wings in Danaids an Additional Defence.—Mimicry between Pro- tected Forms.—Mimicry between Insects belonging to Different Orders.—A Protected Insect sometimes Mimicked by more than one Species.—Mimicry of Vertebrate
. Animal coloration; an account of the principal facts and theories relating to the colours and markings of animals. Color of animals. COXTKXTS. Vll CHAPTER V. PR 0 TECT11 'E MTUT ('It Y. Mr. Bates' Theory.—Mimicry often found only in Females.—Are the Danaidte strongly scented, like the Heliconidae ?—Distastefulness sometimes limited to a Few Individuals.—Resistent Structure of the Wings in Danaids an Additional Defence.—Mimicry between Pro- tected Forms.—Mimicry between Insects belonging to Different Orders.—A Protected Insect sometimes Mimicked by more than one Species.—Mimicry of Vertebrates by Insects and of Insects by Vertebrates.—Mr. Wallace's statement of the Conditions under which Protective Mimicry occurs.—Objections to the Theory of Mimicry.— Resemblances among more or less remotely allied Animals which perhaps cannot be put down to Mimicry.—Instances of Developing Mimicry in Butterflies.—Butterflies more attacked by Birds in the Tropics than in Temperate Regions.—Spiders mimicking Ants.— Difficulty of distinguishing between Mimicry and Warning Colora- tion.—Resemblances between Insects occurring in Different Countries. —Mimicry possibly originated between forms much alike to start with.—Cases of apparently Useless Mimicry.—Mimicry of Hymeno- ptera by Volucella is Difficult to account for.—Vision of Insects.— Cases of Mimicry in which the Mimicking Form is equally abundant with the Model.—Criticism of an apparent case of Mimicry.— Mimicry in some cases possibly only a Resemblance due to Affinity. —Mimicry among Mammals.—Mimicry among Birds.—Mimicry may be in certain cases even Disadvantageous.—Mimicry not always De- ceptive.—The Occasional Limitation of Mimicry to the Female Insect. —Mimicry between Unprotected Forms.—Relative Unimportance of the Imago Stage in Butterflies.—Summary. . CHAPTER VI. XEXUA L COL0 ft. I TION. Sexual Dimorphism in Colour.—Sexual Dimorphism of Colour most marked in B
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