The geographical distribution of ixodid ticks in were surveyed at 10 areas from April to November 2015. We investigated tick distribution using dry ice bait trap and flagging method as a part of disease vector monitoring in Korea. As a result, ticks collected 29,992 ixodid ticks with 3 genera, 7 species. Among them, Genus Haemaphysalis, Ixodes and Amblyomma accounted for 29,751 (99.2%), 223 (0.7%) and 18 (0.1%). Haemaphysalis longicornis was accounted for 88.9%, which has become the dominant species. Some species, such as H. japonica and Ixodes persulcatus were only collected Gangwon area. Metropolitan area had the highest population of ticks 6,540 (21.8%), Chungbuk area was next 5,049 (16.8%). In environmental distribution, Genus Haemaphysalis was highly collected in grassland site (32.1%) and Genus Ixodes was highly collected in coniferous forest site (43.5%). Upon analysis of the monthly distribution, H. longicornis, the dominant species, was highly collected at nymph stage in May, and its larva was highly collected in September. These studies may provide important information for control and management of tick in Korea.

• Bong Gu Song(Division of Medical Entomology, Center for Immunology and Pathology, NRIH, KCDC)
• Wook-Gyo Lee(Division of Medical Entomology, Center for Immunology and Pathology, NRIH, KCDC)
• Sung-Chan Yang(Division of Medical Entomology, Center for Immunology and Pathology, NRIH, KCDC)
• Kyu-Sik Chang(Division of Medical Entomology, Center for Immunology and Pathology, NRIH, KCDC)
• Jong Yul Roh(Division of Medical Entomology, Center for Immunology and Pathology, NRIH, KCDC)
• E-Hyun Shin(Division of Medical Entomology, Center for Immunology and Pathology, NRIH, KCDC)
• Young Ran Ju(Division of Medical Entomology, Center for Immunology and Pathology, NRIH, KCDC)