Empis (Planempis) tripotini sp. n. from South Korea: one of the largest empidoid flies ever discovered (Diptera: Empididae)

Empis (Planempis) tripotini sp. n. (Diptera: Empididae, Empidinae) is described from South Korea. This new species is remarkable for its exceptional body size which makes it one of the largest empidoid species ever described with a wing length up to 12.5 mm. This species is more robust than the two other species of similar size, E. (P.) pan Frey, 1953 and E. (P.) zhuae Liu, Saigusa et Yang, 2012. New species most probably has the same behaviour as most Empidinae where males and females feed on nectar, and only males hunt prey that is given to females at the time of mating. An updated key to the males with dichoptic eyes of the subgenus Planempis Frey, 1953 is also provided.