Cirrochroa thais

Cirrochroa thais, also known as the Tamil yeoman,[1][2] is a species of nymphalid butterfly found in forested areas of tropical Sri Lanka and India.[1][3][4][5]. It is the state butterfly of the Indian state of Tamilnadu.[6][7]

Tamil yeoman
Upperside
Underside
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Nymphalidae
Genus: Cirrochroa
Species:
C. thais
Binomial name
Cirrochroa thais
(Fabricius, 1787)

Description
For a key to the terms used, see Glossary of entomology terms.

Wet-season form: Male. Upperside rich bright fulvous, somewhat deepest basally. Forewing with a slender dusky-lined discocellular streak, a transverse discal more or less prominent black sinuous interrupted line, its anterior portions from upper median dilated and bent inward; two submarginal sinuous lines, the inner dilating broadly inward to the costa, the outer partly merged into the black of outer border. Hindwing crossed by a more or less prominent black inner-discal slender broken line, anteriorly bordered by an outer costal quadrate white patch, followed by a medialrow of black spots, two submarginal sinuous Hues and a marginal even line. Underside. Ground-colour of various shades of reddish-ochreous washed with pale violaceous-grey ; subbasal line dusky brown; transverse discal band white or violaceous-grey, dilated anteriorly, its inner-edge brown-lined and more or less deeply sinuous or broken up into dentate portions, its outer-edge being straight and unlined; followed by an outer-discal series of very obscure dusky dentate marks on the forewing, and a row of small black spots on hindwing, and submarginal lunular lines of the ground-colour bordered by violaceous-grey.

Female. Forewing more falcate at the apex. Upperside paler than in male, darker basally ; markings similar. Underside olivescent greyish-ochreous or pale brownish-ochreous, washed with violaceous-grey; markings similar to male; the discal baud generally prominently edged on both sides by a dark purple-grey line; the discal row of black spots on hindwing very small.

Dry-season form: Male. Upperside slightly paler than in wet-season form ; all the markings comparatively less prominent. Underside paler and a duller reddish-ochreous, the subbasal and outer markings obscure, the discal band on both wings entire throughout its course, and either of the same shade as the ground-colour or white, its inner edge being very slightly sinuous, and not broken up into dentate portions as in wet-season form.

Female. Upperside also slightly paler than in wet-season form, and the markings less prominent. Underside paler greyish-ochreous than in wet-season form; subbasal and outer markings similar; the discal baud entire, as in male, white.

— Frederic Moore, Lepidoptera Indica. Vol. IV[5]

Wingspan 60–75 mm.[4]

  • Eggs
  • Caterpillar
  • Pupa
  • Adult
  • Illustration
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References
  1. R.K., Varshney; Smetacek, Peter (2015). A Synoptic Catalogue of the Butterflies of India. New Delhi: Butterfly Research Centre, Bhimtal & Indinov Publishing, New Delhi. p. 206. doi:10.13140/RG.2.1.3966.2164. ISBN 978-81-929826-4-9.
  2. http://www.ifoundbutterflies.org/sp/797/Cirrochroa-thais
  3. "Cirrochroa Doubleday, [1847]" at Markku Savela's Lepidoptera and Some Other Life Forms
  4. One or more of the preceding sentences incorporates text from a work now in the public domain: Bingham, Charles Thomas (1905). Fauna of British India. Butterflies Vol. 1. pp. 421–423.
  5. One or more of the preceding sentences incorporates text from a work now in the public domain: Moore, Frederic (1899–1900). Lepidoptera Indica. Vol. IV. London: Lovell Reeve and Co. pp. 218–220.CS1 maint: date format (link)
  6. Kumar, K Sambath (30 June 2019). "Tamil yeoman declared Tamil Nadu's state butterfly". The Times of India. Retrieved 1 July 2019.
  7. Shrikumar, A. (2019-07-25). "On how Tamil Yeoman became the State butterfly of Tamil Nadu". The Hindu. ISSN 0971-751X. Retrieved 2019-08-02.


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