Mesostigmata is an important predaceous mite groups in various ecosystems and considered as an Order of Subclass Acari, Superorder Parasitiformes. Among the Suborders, Sejida, Trigynaspida, Monogynaspida, Heterozerconina and Gamasina, we list 35 families and 309 species from Korea. Some of the species were newly added to the Korean fauna. It includes mites from soil, litter, compost, snake, birds and some animal habitats, but the majority is from soil. Some of them are widely used biocontrol agents of spider mites, insects and nematodes.

• Eunsun Keum(School of Bioresource Science, Andong National University, Andong 760-749, Korea)
• Chuleui Jung(School of Bioresource Science, Andong National University, Andong 760-749, Korea)