Four new species of Oedalea (Diptera, Empidoidea, Hybotidae, Oedaleinae) from China with a key to south eastern Asian species Author Zeng, Wei 0000-0001-8749-053X Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China & zengwei _ 1230 @ 126. com; https: // orcid. org / 0000 - 0001 - 8749 - 053 X Author Lin, Chen Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China & Institute of Life Science and Technology, Inner Mongolia Normal University, Huhhot 010022, China Author Yang, Ding 0000-0002-7685-3478 Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China & dyangcau @ 126. com; https: // orcid. org / 0000 - 0002 - 7685 - 3478 text Zootaxa 2022 2022-05-31 5141 6 553 567 journal article 61606 10.11646/zootaxa.5141.6.2 8a21801f-f955-4f00-81a7-d93a25d8d3e4 1175-5326 6598002 98F7B2DB-1B00-4F26-9D71-1882FB2B1FB4 3. Oedalea nanlingensis Yang et Grootaert, 2006 Oedalea nanlingensis Yang et Grootaert, 2006: 246 . Type locality: China : Guangdong , Nanling . Diagnosis. Antenna brownish yellow, except black scape. Pterostigma dark brown, short and wide, rectangular, posterior margin reaching R 2+3 . M 2 apically abbreviated, not reaching wing margin. Right surstylus about 2.0 times longer than wide, apically widely obtuse; left surstylus slightly widened with a distinct incision at apical margin. Distribution. China ( Guangdong ). Remarks. This species is easily separated from other south eastern Asian species of the genus by M 2 apically abbreviated, not reaching the wing margin.