The present study was carried out to revise the species of Chlaeniini in Carabidae from South Korea, using both classic taxonomy and molecular analysis. Another aim is to decide the taxonomic position of Chlaenius micans Fabricius of which subgeneric status in the genus has been in question. As a part of the results, Chlaenius spathulifer Bates, 1873 was newly recognized to Korean insect fauna. With this new addition Korean Chlaeniini contains now in total 34 species and two genera. Molecular analyses using CO1 sequences of representative species for six subgenera in Chlaenius were conducted to determine the position of C. micans. The result of the analyses suggested that C. micans did not belong to the subgenus Achlaenius where C. micans had been doubtfully positioned despite distinct morphological differences from the other four species of the variicornis-group (C. sericimicans, C. variicornis, C. kurosawai and C. ocreatus) in the subgenus. This study provids a key to species, photos of adult habitus, photos of male genitalia and redescriptions of 28 Korean species in Chlaeniini.

• Ik Je CHOI(Division of Forest Biodiversity, Korea National Arboretum)
• Jinyoung PARK(Department of Ecological Science, Kyungpook National University)
• Bong Woo LEE(Division of Forest Biodiversity, Korea National Arboretum)
• Shin Young PARK(Division of Forest Biodiversity, Korea National Arboretum)
• Jong Kyun PARK(Department of Ecological Science, Kyungpook National University)