Coeliccia borneensis (Selys, 1886)

Dow, Rory A. & Reels, Graham T., 2011, Coeliccia southwelli sp. nov. (Odonata: Zygoptera: Platycnemididae) from Mount Dulit, Sarawak, Zootaxa 2832, pp. 63-68 : 64

Coeliccia borneensis (Selys, 1886)

New material. All from Sarawak, in coll. Dow except as noted. ‘Eastern form’: 7 3 (1 in ethanol in RMNH), Miri division, mid Baram area, Gunung Kalulong, small high gradient streams, ca 830–900m, 8–X–2009, leg. RAD; 3, same mountain, stream at 700–800m, 17–VII–2010, leg. RAD; 3, same mountain, stream at ca 700m, 18–VII–2010, leg. RAD; 6 3, same area, Batu Uro’, small high gradient forest streams, 15–VII-2010, leg. L. Southwell & W. Kebing; 5 3, same location, 16–VII–2010, leg. RAD; 2 3, same location and date, leg. M. Kibi; 3, same location and date, leg. L. Southwell; 2 3, same area, tributary to Sungai Pawan in highly disturbed forest, 19–VII–2010, leg. RAD; 3, Miri division, south of Mount Dulit, Sungai Lobang upstream of Long Liau, 4– V–2010, leg. L. Southwell & M. Kibi; 3, Kapit division, Kapit town area, Sebabi Recreational Park, in forest near Sungai Sebabi, 20–X–2009, leg. RAD; 3, same area, tributary to Sungai Ulu Yong, 21–X–2009, leg. L. Southwell; Ƥ, Bintulu division, Kakus district, ‘Camp C’, on steep slope above camp water catchment stream, 25–VI-2010, leg. RAD; 2 3, 2 ƤƤ, Bintulu division, south of Tatau, Anap Muput Forest Management Unit, tributary to Sungai Sebelalang, 20–XI–2010, leg. RAD.

‘Western form’: Ƥ, Miri division, mid Baram, Gunung Kalulong, trailside at ca 700m, 7–X–2009, leg. RAD; Ƥ, Kapit division, Hose Mountains, stream at 920–1020m, 17–V–2010, leg. RAD; Ƥ, same mountains, stream at 1200–1250m, 18–V–2010; leg. RAD; Ƥ (teneral), same mountains, large stream in montane forest at 1300–1400m, 19–V–2010, leg. L. Southwell; 3, Ƥ, foot of same mountains, tributary to waterfall stream near Rumah Jala, 21– V–2010, leg. M. Budi; 2 3, Kapit division, Kapit town area, Sebabi Recreational Park, tributary to Sungai Sebabi, 20–X–2009, leg. RAD; 3, same area, tributary to Sungai Ulu Yong, 12–V–2010, leg. RAD; Ƥ, same location and date, leg. GTR; Ƥ, Bintulu division, Sarawak Planted Forests Project, Tubau, block E2N, stream in highly disturbed forest, 16–VI–2010, leg. RAD;

Remarks. See Dow (2010) for a discussion of the ‘eastern’ and ‘western’ forms; the differences noted in that publication hold for the new specimens listed here as well. The division as ‘eastern’ and ‘western’ forms no longer seems tenable given the large overlap in their distributions that is now evident; it is very likely that they represent distinct species, but in the absence of any convincing structural differences in the male I prefer to leave a final decision on its status at least until molecular results are available. The teneral female from high altitude in the Hose Mountains, listed under the ‘western’ form is questionably referred here.