Onychargia priydak sp. nov. is described from eastern Cambodia. The new species co-occurs with the widespread Onychargia atrocyana Selys, 1865 in the same region. Its males differ from those of O. atrocyana by a larger paraprocts, which are longer than the cerci, and a bright white pruinescence on thorax, femora and the two first abdominal segments….
Burmagomphus asahinai sp. nov. (holotype ♂: Cambodia, Cardamom Mts., Koh Kong Province, Thma Bang District, 6 km SW of its centre, rapids at the Thma Bang River, 25 August 2011, RMNH) is described from Koh Kong Province of Cambodia and Nakhon Nayok, Chiang Mai and Parchuap Khiri Khan Provinces of Thailand and is compared with its…