Notoalona pseudomacronyx Van Damme, Maiphae et Sa-ardrit, 2013

37. * Notoalona pseudomacronyx Van Damme, Maiphae et Sa-ardrit, 2013

Localities and specimens found: 50 – 6♀, 4♀ ov, 1♀ em, 10j; 51 – 30♀, 6♀ ov, 5♀ em, 23j; 59 – 1♀; 60 – 1♀ ov.

Distribution and ecology. This is a rare member of the genus, not long ago described from Thailand (Van Damme et al. 2013), which until recently was considered the only known habitat of the species (Sinev 2016; Neretina et al. 2017). However, the newest analysis of African and Madagascar populations of the related species N. globulosa (indicated under various synonyms in the listed territories) has shown that some of them apparently belong to N. pseudomacronyx ( Neretina et al. 2019) .Additionally, the latest authors noted that N. globulosa , reported by Fernando (1974) from Sri Lanka, is actually N. pseudomacronyx too. The present checklist is the first indication of N. pseudomacronyx in Vietnam.

The species lifestyle and ecology are unstudied. So far, N. pseudomacronyx was known only from shallow, vegetation-rich swampy localities, including temporary ones (Van Damme et al. 2013; Sinev 2016; Neretina et al. 2017, 2019; Choedchim & Maiphae 2023). In similar habitats, it was also encountered in Vietnam: in a periodically drying, heavily vegetated forest lake and in the root system of floating macrophytes in a floodplain lake (see Appendix 1). The crustacean was most abundant among the roots, where it was found mixed with the sibling species N. globulosa .