Colouration in animals and plants . BUTTERFLIES. Spots and Stripes. 41 yellow, with a rich orange spot in the cell of each wing; the femaleis much paler in colour, and spotted similarly. In an allied con-tinental species (G. Cleopatra) Fig. 1, Plate III., the female is like thatof rhamni only larger ; but the male, instead of having an orangespot in the fore-wing, has nearly the whole of the wing suffused withorange, only the margins, and the lower wings showing the sulphurground-tint like that of rhamni. Intermediate forms between thesetwo species are known. In a case like this we can hardly
Colouration in animals and plants . BUTTERFLIES. Spots and Stripes. 41 yellow, with a rich orange spot in the cell of each wing; the femaleis much paler in colour, and spotted similarly. In an allied con-tinental species (G. Cleopatra) Fig. 1, Plate III., the female is like thatof rhamni only larger ; but the male, instead of having an orangespot in the fore-wing, has nearly the whole of the wing suffused withorange, only the margins, and the lower wings showing the sulphurground-tint like that of rhamni. Intermediate forms between thesetwo species are known. In a case like this we can hardly resist theconclusion that the discoidal spot has spread over the fore-wingand become a blotch, and in some English varieties of rhamni weactually find the spot drawn out into a streak. The family of Pieridce, or whites, again afford us admirable ex-amples of the development of spots. The prevailing colours arewhite, black and yellow: green appears to occur in the Orange-tips(Anthocaris), but it is only the optical effect of a mixtu
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Keywords: ., bo, bookcentury1800, booksubjectanimalbehavior, booksubjectplants
