The genus Brachydeutera Loew, 1862 is a small group of acalyptratae flies belonging to the subfamily Ephydrinae in the family Ephydridae. Up to now, 16 described species have been recorded worldwide, and although it occurs in all fauna regions, it is most diverse in the subtropics and tropics, particularly in Africa and Asia. This genus is recorded for the first time in the Korean fauna based on the discovery of a nominated species, Brachydeutera meridionalis (Rondani, 1856). Diagnoses, figures of morphological features, and an ecological photograph of the firstly recorded species are provided herein.

• Dongmin Kim(Department of Applied Biology, Kyungpook National University, Graduate School of Plant Protection and Quarantine, Kyungpook National University) Corresponding author
• Jinseo Kim(Department of Applied Biology, Kyungpook National University)
• Sang Jae Suh(Department of Applied Biology, Kyungpook National University, Department of Plant Medicine, Kyungpook National University, Institute of Plant Medicine, Kyungpook National University, Graduate School of Plant Protection and Quarantine, Kyungpook National University)