Members of Bethylidae are widely distributed from the Tropic to the Subarctic regions around the world. The family contains about 2,216 species worldwide, and the majority of recorded species are found from the tropical regions. From the Oriental region, 368 species of 46 genera in four subfamilies has been recorded up to date. Two species are recognized as new to science and three to the fauna of Cambodia and its adjacent countries in the present study. We provide microphotographs and diagnoses of each species with a general introduction of Cambodian bethylids.

• Jong-Ok Lim(Division of Forest Biodiversity, Korea National Arboretum, Republic of Korea)
• Seung-Hwan Lee(Department of Agricultural Biotechnology, Seoul National University, Republic of Korea)