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Colias palaeno facts for kids

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Moorland clouded yellow
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Pieridae
Genus: Colias
Species: C. palaeno
Binomial name
Colias palaeno
(Linnaeus, 1761)

Colias palaeno, known by the common names moorland clouded yellow, palaeno sulphur, and pale Arctic clouded yellow, is a Holarctic butterfly in the family Pieridae. As most Colias-species, it is an avid flyer. Though the species is normally restricted to the habitats, occasionally it is found far from suitable breeding grounds.


Palaeno Sulphur, Coppermine River
Coppermine River, Nunavut

Upperside of male pale yellow with blackish brown distal margins, pale-centred dark middle spot to the forewing and light middle pot to the hindwing; fringes red. Underside of forewing pale yellow with white-centred dark middle spot,the costal and distal edges being red; hindwing yellow, strongly dusted with fuscous, the large middle spot being mother-of-pearl colour, and the fringes red. The female has a white ground-colour above, the underside of the forewing being white proximally, yellow at apex, the hindwing being somewhat paler in the female than in the male.

The larva is sea-green, velvety, bearing minute black dots; a lateral stripe bright yellow edged with black beneath, below the same the white black-edged spiracles; underside and abdominal legs dull green, thoracical legs yellowish, head green. The Pupa is greenish yellow, the back being strongly convex.

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