Abstract
Coeliccia junis sp. nov. (holotype male from Borneo, Sarawak, Bintulu Division, Planted Forest Project, Bukit Mina Wildlife Corridor, “Day 4” stream near Bukit Nyegoh and Bukit Jugam, near small brown water pool, 10 viii 2018, deposited in the Naturalis Biodiversity Center, Leiden, the Netherlands) and Coeliccia roberti sp. nov. (holotype male from Borneo, Sarawak, Miri Division, Lambir Hills National Park, small stream on Oil Well Trail, 22 iv 2011, deposited in the Naturalis Biodiversity Center, Leiden, the Netherlands) are described from Borneo. Both new species belong to the Coeliccia membranipes–group and bring the number of named species known from the group from Borneo to nine and the total number of named species from Borneo currently placed in Coeliccia to 15. Coeliccia junis is only known from a small area in Sarawak, C. roberti is also known from Brunei. Both species are considered likely to be closely allied with C. macrostigma Laidlaw.
References
Dow, R.A. (2010) Revision of the genus Coeliccia (Zygoptera: Platycnemididae) in Borneo. Part I: The borneensis–group of species. Zoologische Mededelingen Leiden, 84 (7), 117–157.
Dow, R.A. (2016) Revision of the genus Coeliccia Kirby in Borneo part II: Two new species from the membranipes-group, with a redescription of C. macrostigma Laidlaw (Odonata: Zygoptera: Platycnemididae). Zootaxa, 4184 (1), 79–103.
https://doi.org/10.11646/zootaxa.4184.1.5
Dow, R.A. (2020) An annotated checklist of the Odonata (Insecta) known from Sarawak with records to district level. To appear in a special issue of the Sarawak Museum Journal. [in press]
Dow, R.A., Butler, S.G., Reels, G.T., Steinhoff, P.O.M., Stokvis, F.R. & Unggang, J. (2019) Previously unpublished Odonata records from Sarawak, Borneo, part IV: Bintulu Division including the Planted Forest Project and Similajau National Park. Faunistic Studies in Southeast Asian and Pacific Island Odonata, 27, 1–66.
Dow, R.A. & Reels, G.T. (2008) List of species recorded at Gunung Mulu National Park, Sarawak, Malaysian Borneo in 2005–2006, Echo, 5, 2–3 [in Agrion, 12(1)].
Dow, R.A. & Reels, G.T. (2010) The Odonata of three National Parks in Sarawak. Agrion, 14 (1), 14–19.
Laidlaw, F.F. (1918) Some additions to the known dragonfly fauna of Borneo, with an account of new species of the genus Coeliccia. Proceedings of the Zoological Society of London, 1918, 223–232, figs. 2–9.
https://doi.org/10.1111/j.1096-3642.1917.tb02061.x
Laidlaw, F.F. (1932) A revision of the genus Coeliccia (order Odonata). Records of the Indian Museum, 34 (1), 7–42.
Orr, A.G. (2001) An annotated checklist of the Odonata of Brunei with ecological notes and descriptions of hitherto unknown males and larvae. International Journal of Odonatology, 4, 167–220.
https://doi.org/10.1080/13887890.2001.9748168
Orr, A.G. (2003) A guide to the dragonflies of Borneo: their identification and biology. Natural History Publications (Borneo), Kota Kinabalu, 6 + 125 pp.
Steinhoff, P.O.M, Ahmad, R., Butler, S.G., Choong, C.Y., Dow, R.A. & Reels, G.T. (2019) Odonata of Gunong Mulu National Park in Sarawak, Malaysian Borneo. International Dragonfly Fund Report, 141, 1–50.
Thompson, D.J. & van Tol, J. (1993) Damselflies and dragonflies from four forest types in Brunei. Brunei Museum Journal, 8, 57–72.
Watson, J.A.L. & O’Farrell, A.F. (1991) Odonata (dragonflies and damselflies). In: Naumann, I.D., Carne, P.B., Lawrence, J.F., Nielsen, E.S., Spradbery, J.P., Taylor, R.W., Whitten, M.J. & Littlejohn, M.J. (Eds.), The insects of Australia. 2nd Edition. Melbourne University Press, Melbourne, pp. 294–310.
Westfall, M.J. & May, M.L. (1996) Damselflies of North America. First edition. Scientific Publishers, Gainesville, xi + 502 pp.