Notes on some species of the genus Protosticta from Vietnam (Odonata, Platystictidae)

Based on a study of various recent collections of Protosticta Selys from Vietnam, the dragonfly species P. grandis Asahina and P. khaosoidaoensis Asahina (sensu stricto) are reported from Vietnam for the first time. New records are provided for P. satoi Asahina (new status), and the affinities of P. satoi and P. beaumonti Wilson are discussed. The status of a very dark form of Protosticta satoi found in Tam Dao (northern Vietnam) is also discussed. Two species from Chu Yang Sin National Park (southern Vietnam, Dak Lak province) are described as new to science, viz. P. caroli spec. nov. and P. linnaei spec. nov.