“…Dryophytes immaculatus , D. flaviventris , and D. suweonensis are combined into the Dryophytes immaculatus group, with D. immaculatus found in mainland China, D. suweonensis found in the Republic of Korea and the Democratic People’s Republic of Korea, north of the Chilgap mountains, and D. flaviventris found in the Republic of Korea south of the Chilgap mountains and north of the Mangyeong river ( Borzée et al, 2020b ). The species within the D. immaculatus clade are generally restricted to the low elevation alluvial plains around the Yellow sea ( Borzée et al, 2020b ) while D. japonicus is found at variable elevation, breeding in a variety of water bodies ( Tsuji et al, 2011 ; Roh, Borzée & Jang, 2014 ; Borzée et al, 2019b ), and human alteration of the landscape resulted in hybridization between the two groups ( Borzée et al, 2020a ).…”