Chlorogomphus canhvang sp. nov. [holotype male: Along QL15, Quang Binh Province (appr. 17.488 N, 106.302 E), 6.V.2016] is described from the Truong Son Mountains (Quang Binh and Thua Thien—Hue Provinces) in central Vietnam. Detailed differences are given to distinguish the new species from the very similar C. auratus Martin, 1910 for both males and females, and information on its ecology is provided.
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