Mites in the family Ascidae are predacious soil dwellers with potential of biological control of soil insect pests. The family Ascidae is comprised of 10 genera with 12 species recorded in Korea. During the soil acarine biodiversity study in Muljangori, Hallasan Mt in Jeju, Asca bicornis Canestrini & Fanzago, 1887 was discovered from moss habitat and are reporting this as a new record to Korean Mesostigmata fauna. We provide the illustration and description. This species has morphological characteristics of all dorsal setae nude and needle shaped, lateral caudal projection of PoZ4 shape which are different from the con-general species of A. aphidioides.

• Chuleui Jung(Department of Plant medicine, Andong National University)
• Eunsun Keum(Plant Quarantine Technology, Animal and Plant Quarantine Agency, Department of Plant medicine, Andong National University)