Neumania (Neumania) ambigua Piersig, 1906

Material examined. 0/1/0, Huay Talad Reservoir, Buriram Province, 14° 52ʹ 00.1ʺ N, 103° 04ʹ 24.6ʺ E, 4-x-2010 ; 1/3/0, rice field, Sisaket Province, 14° 59ʹ 28.4ʺ N, 104° 22ʹ 56.7ʺ E, 5-x-2010; 2/4/2, Oxbow lake Kud Seum, Yasothon Province, 15° 47.090ʹ N, 104° 09.269ʹ E, 24-x-2010 ; 0/1/0, rice field, Yasothon Province, Thailand, 15° 44.688ʹ N, 104° 13.244ʹ E, 24-x-2010; 0/1/0, Sirindhorn Dam, Ubon Ratchathani Province, 15° 10.623ʹ N, 105° 21.461ʹ E, 24-x-2010 ; 1/1/0, rice field, Ubon Ratchathani Province, 15° 23.604ʹ N, 104° 48.907ʹ E, 25-x-2010; 1/2/0, rice field, Amnat Chareon Province, 16° 03.244ʹ N, 104° 38.105ʹ E, 25-x-2010; 0/1/0, Nong Chang Yai Reservoir, Ubon Ratchathani Province, 15° 23.874ʹ N, 104° 49.756ʹ E, 25-x-2010 ; 2/0/0, Huay Wang Nong Reservoir, Ubon Ratchathani Province, 15° 15.596ʹ N, 104° 53.811ʹ E, 24-x-2010 ; 2/0/0, Kud Pla Khoa Swamp, Ubon Rathchathani Province, 15° 12.373ʹ N, 104° 51.700ʹ E, 10-ii-2011 ; 2/1/0, Huay Nam Kham Noi rivulet, Yasothon Province, Thailand, 15° 48.779ʹ N, 104° 09.415ʹ E, 10-ii-2011 ; 1/0/0, Chi River, Yasothon Province, 15° 48.400ʹ N, 104° 06.760ʹ E, 11-ii-2011 ; 1/2/0, Kon Chum Dam, Nakhon Ratchasima Province, 14° 59ʹ 2.99ʺ N, 102° 3ʹ 15.25ʺ E, 14-ii-2011 .

Remarks. Neumania ambigua was previously reported from Thailand by Imamura (1964). It is a widespread species, occurring from Australia to India.