First record of the genus Chorisops Rondani (Diptera, Stratiomyidae) from South Korea, with a description of a new species 

Abstract

The soldier fly, the family Stratiomyidae, is one of the largest and comparatively diverse groups among the Dipteran. Currently, about 2,700 described species of soldier flies are distributed throughout all the zoogeographic regions worldwide, except polar areas. To date, there have been a few sporadic reports of new records in the Korean fauna, but compared to the faunistic surveys of other countries, there are many species that have not yet been reported. Therefore, the authors have conducted extensive field expeditions in Korea for revealing hitherto unknown Korean soldier flies. In the present taxonomic study, the soldier fly genus Chorisops Rondani is reported for the first time from the Korean Peninsula based on the following two species: C. bifurca sp. nov. and C. maculiala Nagatomi, 1964. Herein, the description, diagnosis, external photographs, and taxonomic characteristics of the two species are presented. Furthermore, an identification key for Northeastern species is provided.