Anthalona sanoamuangae Sinev et Kotov 2012

17. Anthalona sanoamuangae Sinev et Kotov, 2012 Localities and specimens found: 2 – 1♀ ov, 1♀ em; 16 – 1♀ ov; 25 – 17♀, 37♀ ov, 50♀ em, 66j; 26 – 20♀, 16♀ ov, 19♀ em, 21j; 100 – 1♀; 102 – 1♀. Distribution and ecology. This is a recently described rare species from Indochina, probably endemic to Southeast Asia. To date, it has only been found in Thailand, Laos and Vietnam (Sinev & Kotov 2012; Korovchinsky 2013; Kotov et al. 2013a, b; Sinev & Korovchinsky 2013; Zhdanova 2014; Sinev 2016; Choedchim & Maiphae 2023; present study). The species lifestyle and ecology are little known. Most likely, this chydorid prefers running water bodies (rivers and streams) (Sinev & Kotov 2012; Sinev & Korovchinsky 2013; Sinev 2016), although it occurs in lakes and reservoirs too (Zhdanova 2014; Choedchim & Maiphae 2023). In our material, A. sanoamuangae was especially abundant in qualitative samples from the open and overgrown littoral of a small reservoir (Nos. 25, 26; see Appendix 1).