A total of 12 Korean Rivellia species were previously known in Korea. As a result of the continuing effort to investigate this genus in Korea, we discovered an additional species, R. depicta Hendel. We also collected R. asiatica that was the only recorded Korean species unavailable for our previous studies of Rivellia. In the present study, we provide redescriptions of these two species and a revised key to all 13 known species of Korean Rivellia. We also reanalyzed their phylogenetic relationships based on the expanded morphological dataset.