Tapena

Tapena is a monotypic genus of butterflies in the family Hesperiidae subfamily Pyrginae. Its single species is Tapena thwaitesi,[3] the black angle,[4] found in Indomalayan realm.[4][5][6][7] The species was described by Frederic Moore in 1881 and is named after George Henry Kendrick Thwaites, the director of the botanical garden at Peradeniya, Sri Lanka between 1849 and 1880.[2][8][9]

Black angle
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Hesperiidae
Subfamily:
Pyrginae
Tribe:
Tagiadini
Genus:
Tapena

Moore, 1881
Species:
T. thwaitesi
Binomial name
Tapena thwaitesi
(Moore, 1881)[1][2]

Description

Male has the upperside dark purple brown, with blackish outer margins and indistinct discal transverse band of spots; forewing with two small translucent white spots on the costa near the apex. Underside dark purple brown.[10]

Female has the upper and underside greyish purple brown, transverse band of spots and outer border dark purple brown; forewing with three small semi-diaphanous white subapical spots, the lowest transversely narrow, two spots also at end of the cell, the upper one very slender, and two spots on the disc, each series being bordered by the dark band; hindwing with a semi-diaphanous spot at end of the cell.[10]

Subspecies

Two subspecies are classified under Tapena thwaitesi, they are:

  • Dry-season form
  • Wet-season form

References
  1. Beccaloni, G.; Scoble, M.; Kitching, I.; Simonsen, T.; Robinson, G.; Pitkin, B.; Hine, A.; Lyal, C., eds. (2003). "Tapena thwaitesi". The Global Lepidoptera Names Index. Natural History Museum. Retrieved May 15, 2018.
  2. Moore, Frederic (1880). The Lepidoptera of Ceylon. Vol. I. London: L. Reeve & co. p. 181.
  3. Savela, Markku. "Tapena thwaitesi Moore, [1881]". Lepidoptera and Some Other Life Forms. Retrieved May 15, 2018.
  4. 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. 28. doi:10.13140/RG.2.1.3966.2164. ISBN 978-81-929826-4-9.
  5. TOL web page on genus Tapena thwaitesi
  6. Y. Inayoshi (1996–2014). "Tapena thwaitesi bornea Evans,1931". A Check List of Butterflies in Indo-China. Retrieved 27 September 2015.
  7. Y. Inayoshi (1996–2014). "Tapena thwaitesi minuscula Elwes & Edwards,1897". A Check List of Butterflies in Indo-China. Retrieved 27 September 2015.
  8. W. H., Evans (1949). A Catalogue of the Hesperiidae from Europe, Asia, and Australia in the British Museum. London: British Museum (Natural History). Department of Entomology. p. 109.
  9. One or more of the preceding sentences incorporates text from a work now in the public domain: Swinhoe, Charles (1912–1913). Lepidoptera Indica. Vol. X. London: Lovell Reeve and Co. pp. 59–60.CS1 maint: date format (link)
  10. One or more of the preceding sentences incorporates text from a work now in the public domain: E. Y., Watson (1891). Hesperiidae Indicae : being a reprint of descriptions of the Hesperiidae of India, Burma, and Ceylon. Madras: Vest and Company. p. 122.


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