West Coast lady

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West Coast lady
West Coast Lady, Vanessa annabella.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Nymphalidae
Genus: Vanessa
Species:
V. annabella
Binomial name
Vanessa annabella
(W. D. Field, 1971)
Synonyms

Cynthia annabellaField, 1971
Vanessa anabella( lapsus )
Vanessa carye annabella

Contents

The West Coast lady (Vanessa annabella) is one of three North American species of brush-footed butterflies known colloquially as the "painted ladies". V. annabella occurs throughout much of the western US and southwestern Canada. The other two species are the cosmopolitan Vanessa cardui (painted lady) and the eastern Vanessa virginiensis (American painted lady). This species has also been considered a subspecies of the South American Vanessa carye and is frequently misspelled as "anabella".

Distinguishing features

Schematic of standard wing terminology Butterfly wing zones.svg
Schematic of standard wing terminology

Aside from general differences in distribution, V. annabella can be distinguished from the other two painted ladies of North America as follows:

Most conspicuously, it lacks obvious ventral eyespots on the hindwings; there are two large ones on V. virginiensis and four small ones on V. cardui. Like the latter, it also lacks a white dot in the pinkish-orange subapical field of the ventral and dorsal forewings. Its upperwing coloration has the purest orange of the three; the American painted lady is usually quite reddish.

A less reliable indicator is the row of black eyespots on the dorsal submarginal hindwing. These are usually of roughly equal size in V. cardui and lack blue centers, though the summer morph may have a few tiny ones. In the other two, usually two eyespots are larger and have more conspicuous blue centers. In V. virginiensis, these normally are the spot at each end of the row, whereas in the present species it is the two middle ones.

See also

Related Research Articles

<i>Cynthia</i> (butterfly) Subgenus of insects

Cynthia is a group of colourful butterfly species that used to be considered a subgenus of the genus Vanessa, in the family Nymphalidae. Before that, it was first described as a genus. Nowadays, this group is not considered a valid taxon anymore, because it is paraphyletic. The name CynthiaFabricius, 1807 is now a junior subjective synonym of VanessaFabricius, 1807.

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<i>Vanessa</i> (butterfly) Genus of brush-footed butterflies in the family Nymphalidae with a near-global distribution

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<i>Vanessa carye</i> Species of butterfly

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References