New records — Western Australia. 16/8/0, Fitzroy River, at crossing with Great Northern Highway, S of Derby, 8 Sept. 1998 ; 1/5/1, pool Valentine Springs, W of Kununurra, 18. Sept. 1998; 2/1/0, Arthur Creek at crossing with Great Northern Highway, 23. Sept. 1998 ; 1/1/0, Geikie Gorge, western side, Geikie Gorge NP, 18°7 ′ 23.92 ″ S 125°39 ′ 42.47 ″ E, 28. Sept. 1998; 1/5/0, Lake Campion, 17°50 ′ 50.37”S 122°44 ′ 29.84 ″ E, 14. Oct. 1998. Northern Territory. 1/0/1, small billabong, Yellow Waters, Kakadu NP, 22 July 1994 ; 1/0/0, ponds Ormiston Gorge, Ormiston Gorge NP, 6 Aug. 1994 ; 1/4/1, Campbell Springs, 38 km E of Victoria Roadhouse, Gregory NP, 15°29.749 ′ S 131°23.328 ′ E, 4. Oct. 2005 ; 1/3/0, Caranbirini Waterhole, 16°16.279 ′ S 136°04.837 ′ E, 6 Oct. 2005. Queensland. 3/5/0, Nankin Creek, Rockhampton, 24 Sept. 1982, leg. A.P. Mackey; 1/0/0, Fitzroy River, Rockhampton, 13 Apr.1983, leg. A.P. Mackey; 2/1/0, Archer River at Archer River Roadhouse, Cape York Peninsula, 13°26 ′ 10.25 ″ S 142°56 ′ 39.73 ″ E, 6 Sept. 2000 ; 4/3/0, Hasties Swamp, Hasties Swamp NP, 17°17 ′ 55.35 ″ S 145°28 ′ 32.24 ″ E, 16 Sept. 2000 ; 2/0/0, Pandanus Creek, Cathu State Forest, 20° 47.904 ′ S 148°32.658 ′ E, 24 Oct. 2005 ; 1/0/0, small lake S of Biggenden, along road Biggenden-Maryborough, 25°33.583 ′ S 152°07.345 ′ E, 1 Nov. 2005.
Distribution — A widespread species, known from SE Asia, Philippines, Japan and eastern Siberia. Within Australia known from the Northern Territory and Queensland, and here reported for the first time from Western Australia.