Orachrysops niobe
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| Orachrysops niobe Roland Trimen 1858 |
Orachrysops niobe, or the Brenton Blue butterfly is a species of butterfly in the Lycaenidae family. It is endemic to South Africa.
It was discovered in 1858 by Roland Trimen at Knysna in the Western Cape Province of South Africa[1]. It was not seen again until 1977, when Dr Jonathan Ball of Cape Town found a population at Nature's Valley 50 km to the east of Knysna[2]. This population died out during the 1980s but in 1991 Ernest Pringle of Bedford in the Eastern Cape Province located another colony at Brenton-on-Sea near Knysna. A housing development was planned for this site, but this was prevented after a highly publicised campaign to save the species from extinction[3]. This resulted in the procurement of the land on which the butterfly breeds by the South African Government and its proclamation as a Special Nature Reserve in July 2003.
The butterfly is the type species of the genus Orachrysops[4], and is Red Listed as Critically Endangered[5]. The Special Nature Reserve at Brenton is managed by CapeNature, assisted by a management committee and informed by research conducted by Dave Edge of Knysna[6]. This research studied the life cycle of the Brenton Blue and all the ecological factors that impact on its survival including geology, microclimate, vegetation communities, ant interactions (myrmecophily), and the biology of its larval food plant Indigofera erecta Thunberg.
[edit] References
- ^ Trimen, R. 1862. On some new species of South African butterflies. Transactions of the Entomological Society of London, 3(1): 279-291
- ^ Henning, S.F. & Henning G.A. 1989. South African Red Data Book: butterflies. South African National Scientific Programmes Report 158. Pretoria: Council for Scientific and Industrial Research
- ^ Steenkamp, C. & Stein, R. 1999. The Brenton Blue saga. Endangered Wildlife Trust, Parkview, South Africa 105p
- ^ Vari, L. & Kroon, D. 1986 Southern African Lepidoptera - a series of cross referenced indices. Pretoria: The Lepidopterists' Society of Southern Africa & The Transvaal Museum. 198p.
- ^ Henning, G.A., Terblanche, R.F & Ball, J.B. (eds.) 2008. South African Red Data Book: butterflies. SANBI Biodiversity Series. Pretoria: South African National Biodiversity Institute (in press)
- ^ Edge, D.A. 2005. Ecological factors influencing the survival of the Brenton Blue butterfly Orachrysops niobe (Trimen) (Lepidoptera: Lycaenidae). PhD thesis. North-West University: Potchefstroom, South Africa
- South African Government Gazette Notice 939 of 04/07/2003.
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