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Tuesday, 24 March 2020

5-3-2020 KANHA NAT PARK, INDIA - TAWNY COSTER BUTTERFLY (Acraea terpsicore)


Acraea terpsicore, the tawny coster, is a small, 53–64 millimetres (2.1–2.5 in), leathery-winged butterfly common in grassland and scrub habitats. It belongs to the Nymphalidae or brush-footed butterfly family. It has a weak fluttery flight. It is avoided by most insect predators. This species and the yellow coster (Acraea issoria) are the only two Indian representatives of the predominantly African tribe Acraeini. It is found in India, Sri Lanka, Indonesia, Maldives to Myanmar, Thailand, Laos, Cambodia, Vietnam, Bangladesh, Malaysia, Singapore, and recently Australia.

There has been long standing debate among taxonomists on whether the correct name for this species is Acraea terpsicore Linnaeus, 1758 or Acraea violae Fabricius, 1775. Pierre and Bernaud, in 1997, stated that they verified the type in the Linnean Society of London and considered A. violae the same species as A. terpsicore. Honey and Scoble, in 2001, argued that both specimens in the Linnean Society are later additions by James Edward Smith (botanist) who, in 1784, purchased Linnaeus specimens, bringing them to London. In the absence of authentic syntypes, the identity of terpsicore remains uncertain although there are chances that they may be synonyms.