All seven members of the genus Orthobrachia Warren, 1895 are recorded, with description of a new species from Sichuan Province, China and N. Thailand, including O. latifasciata (Moore, 1888) and O. flavidior (Hampson, 1898) from northern India, Nepal and China, O. tenebrosa Yazaki, 1992 from Nepal and India, O. owadai Yazaki, 1992 from India, O. simpliciata Yazaki, 2002 from China, and O. maoershanensis Huang, Xin & Wang, 2003 from South China. A key to the Orthobrachia species is provided, along with a distributional map of all nominal species. The type specimens of the new species are deposited in Hunan Agricultural University (China), South China Agricultural University (China) and Zoological Research Museum Alexander Koenig (Germany).
Keywords: Ennominae, Orthobrachia hirowatarii sp. n., Sichuan province, taxonomy
Guo-Hua Huang, Zi-You Su and Dieter Stüning. 2016. Taxonomic Notes on the Genus Orthobrachia Warren, with Description of A New Species from China and Thailand (Lepidoptera, Geometridae). ZooKeys. 609; 121-137. DOI: 10.3897/zookeys.609.8288