Odontoptilum angulata

Chestnut angle
	At Namdapha National Park, Arunachal Pradesh, India
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Hesperiidae
Genus:	Odontoptilum
Species:	O. angulata
Binomial name
	Odontoptilum angulata; (C. Felder, 1862)
Synonyms
	Achlyodes sura Moore, 1865[1]

Odontoptilum angulata,[2] the chestnut angle or banded angle, is a butterfly belonging to the family Hesperiidae and is found in India[3] and southeast Asia.[4][5][6][7]

Description

Male and female vinaceous-brown, palest on the hindwing. Male, forewing dull chestnut-brown along exterior margin, with a black transverse band one-third from the base; a geminated semi-transparent spot on costa before the apex, surrounded by suffused black; a semi-transparent lunule and a small spot on the lower part of the disc, bordered without by a black band: hindwing with a transverse subbasal, an elbowed discal, and a lower submarginal purplish-white line; apex of wing with suffused black patch and lower marginal blackish pale-bordered spots. Underside brown, forewing suffused with greyish-white at the base; markings as above: hindwing greyish-white, the transverse lines less defined, marginal spots blacker, and a blackish spot near base of wing. Palpi above black. Palpi and body beneath and legs greyish-white. Female paler, marked on upper-and undersides as in male.
— E. Y. Watson[8]

References

Moore, Frederic (1865). On the Lepidopterous Insects of Bengal. London: Zoological Society of London. p. 786.
Felder, Cajetan Freiherr von (1862). Verzeichniss der von den Naturforschern der k. k. Fregatte Novara gesammelten Macropepidoteren. Zoologisch-Botanische Gesellschaft in Wien. p. 488.
Varshney, R.K.; Smetacek, Peter (2015). A Synoptic Catalogue of the Butterflies of India. New Delhi: Butterfly Research Centre, Bhimtal & Indinov Publishing, New Delhi. p. 33. doi:10.13140/RG.2.1.3966.2164. ISBN 978-81-929826-4-9.
Savela, Markku. "Odontoptilum angulata (Felder, 1862)". Lepidoptera and Some Other Life Forms. Retrieved July 2, 2018.
Inayoshi, Yutaka. "Odontoptilum angulata angulata (C. Felder, 1862)". Butterflies in Indo-China.
Evans, W. H. (1949). A Catalogue of the Hesperiidae from Europe, Asia, and Australia in the British Museum. London: British Museum (Natural History). Department of Entomology. p. 157.
One or more of the preceding sentences incorporates text from this source, which is in the public domain: Swinhoe, Charles (1912–1913). Lepidoptera Indica. Vol. 10. London: Lovell Reeve and Co. pp. 81–82.
One or more of the preceding sentences incorporates text from this source, which is in the public domain: Watson, E. Y. (1891). Hesperiidae Indicae: being a reprint of descriptions of the Hesperiidae of India, Burma, and Ceylon. Madras: Vest and Company. pp. 105–106.

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[Moore-1] Moore, Frederic (1865). On the Lepidopterous Insects of Bengal. London: Zoological Society of London. p. 786.

[Felder-2] Felder, Cajetan Freiherr von (1862). Verzeichniss der von den Naturforschern der k. k. Fregatte Novara gesammelten Macropepidoteren. Zoologisch-Botanische Gesellschaft in Wien. p. 488.

[Smetacek-3] Varshney, R.K.; Smetacek, Peter (2015). A Synoptic Catalogue of the Butterflies of India. New Delhi: Butterfly Research Centre, Bhimtal & Indinov Publishing, New Delhi. p. 33. doi:10.13140/RG.2.1.3966.2164. ISBN 978-81-929826-4-9.

[funet-4] Savela, Markku. "Odontoptilum angulata (Felder, 1862)". Lepidoptera and Some Other Life Forms. Retrieved July 2, 2018.

[Yutaka-5] Inayoshi, Yutaka. "Odontoptilum angulata angulata (C. Felder, 1862)". Butterflies in Indo-China.

[Evans-6] Evans, W. H. (1949). A Catalogue of the Hesperiidae from Europe, Asia, and Australia in the British Museum. London: British Museum (Natural History). Department of Entomology. p. 157.

[SwinhoeIndica-7] One or more of the preceding sentences incorporates text from this source, which is in the public domain: Swinhoe, Charles (1912–1913). Lepidoptera Indica. Vol. 10. London: Lovell Reeve and Co. pp. 81–82.

[watson-8] One or more of the preceding sentences incorporates text from this source, which is in the public domain: Watson, E. Y. (1891). Hesperiidae Indicae: being a reprint of descriptions of the Hesperiidae of India, Burma, and Ceylon. Madras: Vest and Company. pp. 105–106.