The genus Amolops, Cope, 1865 often referred to as Cascade frogs or Torrent frogs, is one of the oldest frog lineages (Pyron and Wiens, 2011; Chan and Brown, 2017; Wu et al., 2020) and a speciose genus of the family Ranidae, with 80 recognised species (AmphibiaWeb, 2023; Frost, 2023). The genus is restricted to Asia where it has a wide geographical range extending from north and northeast India, Nepal, Bhutan, Myanmar, western, southern, and eastern China, Laos, Vietnam, Thailand, down into Peninsular Malaysia (Ao et al., 2003; Nidup et al., 2016; Khatiwada et al., 2020; Gan et al., 2020; AmphibiaWeb, 2023; Frost, 2023). Although it has been a recognised ranid genus for 158 years, almost two-thirds of its species have only recently been discovered (Frost, 2023). Meanwhile, current research suggests that there still are many potential undescribed species (Stuart et al., 2010; Wu et al., 2020; Mahony et al., 2023).