Painted lady

Cynthia (subgenus)
Vanessa cardui
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Nymphalidae
Subfamily: Nymphalinae
Tribe: Nymphalini
Genus: Vanessa
Subgenus: Cynthia

The Cynthia group of colourful butterflies, commonly called painted ladies, comprises a subgenus of the genus Vanessa in the family Nymphalidae. They are well known throughout most of the world.

The group includes:

Distinguishing features

The painted lady (V. cardui) is a large butterfly (wing span 5–9 cm (2.0–3.5 in)) identified by the black and white corners of its mainly deep orange, black-spotted wings. It has five white spots in the black forewing tips and while the orange areas may be pale here and there, there are no clean white dots in them. The hindwings carry four small submarginal eyespots on the dorsal and ventral sides. Those on the dorsal side are black, but in the summer morph sometimes small blue pupils are present.

The American painted lady (V. virginiensis) is most easily distinguishable by its two large hindwing eyespots on the ventral side. V. virginiensis also features a white dot within the subapical field of the forewings set in pink on the ventral side, and often as a smaller clean white dot in the orange of the dorsal side too. A less reliable indicator is the row of eyespots on the dorsal submarginal hindwing; V. virginiensis often has two larger outer spots with blue pupils. The black forewing tips have four to five white spots; usually the largest is whitish orange.

The West Coast lady (V. annabella) does not have obvious ventral eyespots. On the dorsal side, V. anabella lacks a white dot in the subapical orange found in V. virginiensis, and is a purer orange color. V. annabella has a fully orange subapical band and leading edge on the forewing. The submarginal row of hindwing spots in V. annabella features three or four blue pupils. The two larger pupils in V. annabella are the inner spots, rather than the outer spots as in corresponding V. virginiensis.

The Australian painted lady (V. kershawi) is quite similar to V. cardui. Its four ventral eyespots are less clearly defined, and it always sports at least three (often four) blue pupil spots on its dorsal hindwing. Caterpillars are found mainly on Ammobium alatum.

Lifespan

The lifespan of a painted lady butterfly is two to four weeks. The species undergoes complete metamorphosis which has recently been investigated using microtomography.[1]

Comparison

References

  1. ↑ Lowe, Tristan; Garwood, Russell P.; Simonsen, Thomas; Bradley, Robert S.; Withers, Philip J. (2013). "Metamorphosis revealed: three dimensional imaging inside a living chrysalis". Metamorphosis revealed: three dimensional imaging inside a living chrysalis. 10 (84). 20130304. doi:10.1098/rsif.2013.0304. PMC 3673169. Retrieved June 11, 2015.
  • Painted lady butterfly (Vanessa cardui): Large format reference quality photographs
  • American painted lady butterfly (Vanessa virginiensis): Large format reference quality closeup photographs
  • Wildlife photos of painted lady butterfly
  • "Vanessa cardui". Integrated Taxonomic Information System. Retrieved 6 February 2006.
  • "Vanessa virginiensis". Integrated Taxonomic Information System. Retrieved 6 February 2006.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.