The genus Asiagomphus in Vietnam, with descriptions of three new species, and first descriptions of the male of Asiagomphus auricolor (Fraser, 1926) and of the female of Asiagomphus reinhardti Kosterin & Yokoi, 2016 (Odonata: Gomphidae)

Abstract

The occurrence in Vietnam of eight species of Asiagomphus Asahina, 1985 is discussed. Three new species are described (Asiagomphus kosterini [holotype: Da Lat, Lam Dong Prov., (appr. 11.880 N, 108.442 E), 17-IV-2016], Asiagomphus monticola [holotype: Xuan Son NP, Phu Tho Prov., (appr. 21.163 N, 104.896 E), 31-V-2014], and Asiagomphus superciliaris [holotype: Huu Lien NR, Lang Son Prov., (appr. 21.686 N, 106.376 E), 01-V-2014], and the male of Asiagomphus auricolor (Fraser, 1926) and the female of Asiagomphus reinhardti Kosterin Yokoi, 2016 are described for the first time. The female of Asiagomphus auricolor is redescribed. Distribution and ecology of all species and a key to the males occurring in Vietnam are provided.