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The scales on butterfly wings are pigmented with melanins that can produce the colours black and brown. The white colour in the butterfly family Pieridae is a derivative of uric acid, an excretory product. [13] [40]: 84 Bright blues, greens, reds, and iridescence are usually created not by pigments but through the microstructure of the scales.
Limenitis arthemis, the red-spotted purple or white admiral, is a North American butterfly species in the cosmopolitan genus Limenitis.It has been studied for its evolution of mimicry, and for the several stable hybrid wing patterns within this nominal species; it is one of the most dramatic examples of hybridization between non-mimetic and mimetic populations.
Butterflies is a series of paintings made by Vincent van Gogh in 1889 and 1890. Van Gogh made at least four paintings of butterflies and one of a moth.The metamorphosis of the caterpillar into a butterfly was symbolic to Van Gogh of men and women's capability for transformation.
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If one draws the data-flow diagram for this pair of operations, the (x 0, x 1) to (y 0, y 1) lines cross and resemble the wings of a butterfly, hence the name (see also the illustration at right). A decimation-in-time radix-2 FFT breaks a length-N DFT into two length-N/2 DFTs followed by a combining stage consisting of many butterfly operations.
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Adelpha californica, the California sister, is a species of butterfly in the family Nymphalidae. They are common in California, but can also be found in western Nevada and Oregon, as well as in northern Baja California. The upper surfaces of their wings are dark brown to black with wide cream white bands dissecting both wings and two orange ...
The Kamehameha butterfly (Vanessa tameamea) is one of the two species of butterfly endemic to Hawaii, the other is Udara blackburni. [1] The Hawaiian name is pulelehua.This is today a catch-all native term for all butterflies; its origin seems to be pulelo "to float" or "to undulate in the air" + lehua, "reddish", or "rainbow colored", probably due to the predominant color of the Metrosideros ...