Tawny Coster Acraea Terpsicore - a New Species for Borneo?
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Tawny Coster Acraea terpsicore - a new species for Borneo? Muhammad Iqbal1, Haryadi2 and Syafuri1 1 2 here. This paper describes our observations of Tawny Borneo is 830 miles long and 600 miles wide, and is divided politically into Sabah and Sarawak, which belong to the Federation of Malaysia; Brunei, a tiny independent Sultanate; and the largest proportion, Kalimantan, which is part of Indonesia (MacKinnon, 1975). As part of the Sundaland biodiversity hotspot, An incidental biodiversity survey was conducted in Borneo is home to some of the most complex and Indonesian Borneo, located in Ketapang and Kapuas diverse forest ecosystems on Earth (Myers et al., 2000; Hulu district of West Kalimantan, and Kutai Timur Sodhi et al., 2004). For both Flora and Fauna, Borneo (East Kalimantan). Visits to Ketapang and Kapuas Hulu shows much closer relationships to the Asian mainland district were undertaken during 21st April to 2nd May, and other Sunda islands (ancient Sundaland), than to its 2015, and to Kutai Timur on 11th June, 2015. During eastern neighbour Sulawesi, although separated only the surveys, we observed several individuals of Tawny by the Makassar straits c.200 km at their widest point Coster (Fig. 1). The habitats consisted primarily of (MacKinnon et al., 1996). rubber agroforest estates, oil palm plantations and Tawny Coster Acraea terpsicore, or formerly known as degraded secondary forest. A. violae, ranges from Sri Lanka and India to Vietnam, and has spread into Thailand and more recently into Peninsular Malaysia and Singapore (Kirton, 2014). It was anticipated that Tawny Coster would likely disperse further southwards from Malaysia, although its rate of colonisation could not be accurately determined due to the lack of detailed records (Tung, 2002). Currently, its known record extend to the southern part of Sumatra, as well as Java, Flores, Sumba, Timor and northern Australia (Braby et al., 2014). approximately 10% are endemic, 70% are found in former parts of Sundaland, while 20% are also found in the Philippines, Sulawesi and rest of the world (Otsuka, (eg. Abang, 2006; Chung, 2013; Harmonis, 2008; Houlihan et al., 2012; Houlihan et al., 2013; Jalil et al., 2008), there have been no records of Tawny Coster Received 6th th July, Borneo. 47 Iqbal et al. Table 1 st April - 2nd th Indonesian Borneo. Date Individuals Name of site Habitat Coordinates - 22 April 6 Sebah river o o 24 April 8 Jelamu hill o o 26 April 1 Sengkuang village Garden o o 28 April 3 Perigi village o o 11 June 1 Bukit Pelangi Park o o Figure 2 nd th Our records suggest that the Tawny Coster may have recently spread to and established itself in Kalimantan. On 21st April 2nd May, 2015, two biodiversity surveys Braby et al. (2014) undertook a comprehensive review were conducted separately in West and East Kalimantan. of the distribution range of Tawny Coster in South- East Asia and northern Australia. This review does not Acraea provide information about the Tawny Coster in Borneo. terpsicore. The species is relatively easy to identify by To date, our records of Tawny Coster in Kalimantan is its black head and spotted white thorax, long fore-wings the only known information for this species in Borneo. with rounded tips, round hind-wings and both fore and It is not clear how Tawny Coster became established hind-wings are orange above with narrow black outer in South-East Asia, but there may be some explanations borders and black wing spots. The hind-wings have a to this: (i) the species was accidentally and recently broad border with white markings enclosed in it, and introduced to Indochina from India or Sri Lanka, (ii) there are black spots on both wings (Kirton, 2014; the species naturally expanded its range out of India Lewis, 1973; Ventakaraman, 2010). These characters and colonised Thailand via Myanmar, and (iii) the species always existed in the region (e.g. Thailand and Kalimantan provinces during our survey period (Fig. Vietnam), but has since become more abundant and 2). Details of date, number of individuals, sites, habitats and coordinates of Tawy Coster from Kalimantan are habitat for agriculture. The species favours cultivated presented in Table 1. regions and degraded forests, where the larval food 48 Tawny coster on Borneo plants grow (Braby et al. 2014; Ventakaraman, 2010). Houlihan, P.R., Harrison, M.E., and S.M. Cheyne. In the last decade, many forested areas in Borneo have been converted to oil-palm or Acacia plantations a Bornean peat-swamp forest. (Koh, 2008), resulting in the creation of extensive open Entomology 16: 67–73. habitat and short grass, which provides suitable habitat for Tawny Coster. Jalil, M.F., Mahsol, H.H., Wahid, N. and A.H. fauna of Sungai Imbak Forest Reserve, a remote area at the centre of Sabah, Malaysia. Journal of Tropical Biology and Conservation 4(1): 115 – 120. First and third authors thank Daemeter Consulting for facilitating and supporting the biodiversity survey in of Peninsular Malaysia, Singapore and Thailand. John West Kalimatan. We are very grateful to Dr. Michael Beaufoy Publishing, London, UK. Braby (School of Biological Sciences of the Australian National University) and Dr. Djunijanti Peggie Koh, P.L. (2008). Can oil palm plantations be made (Research Center for Biology of Indonesian Institute of ournal Science or LIPI) for sharing their knowledge of Tawny of Applied Ecology 45: 1002–1009. Coster distributions in South-East Asia and Indonesia. Thanks to Dr. Carl Traeholt and Dr. Wilson Novarino for their constructive suggestions and advises. Publishing Company, Chicago, US. MacKinnon, J. (1975). Borneo. Time-Life books, Amsterdam, Netherlands. MacKinnon, K., Hatta, G., Halim, H. & Mangalik, pocket guide. Universiti Malaysia Sarawak, Sarawak, A. (1996). Ecology of Kalimantan. Periplus edition, Malaysia. Singapore. Braby, M.F., Bertelsmeier, C., Sanderson, C. and B.M. Myers, N., Mittermeier, R.A., Mittermeier, C.G., da Thistleton. (2014). Spatial distribution and range Fonseca, G.A.B. and J. Kent. (2000). Biodiversity expansion of the Tawny Coster, Acraea terpsicore hotspots for conservation priorities. Nature 403: 853– (Linnaeus, 1758) (Lepidoptera: Nymphalidae), in 858. South-East Asia and Australia. Insect Conservation and Diversity 7: 132–143. Borneo and South-East Asia. Hornbill Books, Sabah, Chung, A.Y.C., Maycock, C.R., Khoo, E., Hastie, A., Malaysia. Nilus, R., Majapun, R., K Kimjus, K. and V.K. Chey. (2013). New records of insects associated with Bornean Sodhi, N.S., Koh, L.P., Brook, B.W. and P.K.L. Ng. endemic Dipterocarp seedlings. Journal of Tropical (2004). South-East Asian biodiversity: an impending Forest Science 25(1): 5–11. disaster. Trends in Ecology & Evolution 19: 654–660. Harmonis (2008). Kehadiran kupu-kupu di areal Tung, A.V.W.Y. (2002). Some taxonomic and reklamasi bekas tambang batu bara PT Kaltim Prima distributional notes on Acraea violae (Fabricius) Coal, Sengata. Rimba 13(2): 99-105. (Lepidoptera: Nymphalidae: Acraeinae). Malayan Nature Journal 56: 77–81. Houlihan, P.R., Marchant N.C. and M.E. Harrison, Orangutan Tropical Peatland Project, Palangka Raya, Indian insects and arachnids. Simova Education and Indonesia. Research, Bangalore, India. 49 .