The Platystictidae of Hong Kong and Guangdong, with descriptions of a new genus and two new species (Zygoptera)

5 taxa are detailed. Sinostictinae subfam. n. and Sinosticta gen. n. are established to receive Drepanosticta ogatai Matsuki & Saito, 1996. Protosticta beaumonti sp. n., from Guangdong and Hong Kong is described (holotype 6. allotype 9: Hong Kong, Keung Shan, 22-V-1994; to be deposited at BMNH), Drepanosticta hongkongensis sp. n., is described (holotype <J: Hong Kong, Tai Mo Shan, 15-V-1994; to be deposited at BMNH), and compared with D. brownelli (Tinkham) from Guangdong.