Chlorogomphus (Sinorogomphus) nasutus nasutus Needham, 1930

(Figures 20, 21)

Examined specimens. 4 ♂♂, 1 ♀, Khe Ro (15.0444 N, 107.9270 E, altitude 1480 m), Vu Quang National Park, Kim Quang Commune, Vu Quang District, Ha Tinh Province, 2.vi.2020, Q. T. Phan & Q.P. Ngo leg.

Notes. Body coloration of both sexes and male appendage morphology from Vu Quang National Park (Figs 20, 21) match those in Karube (2013: Fig. 11). The nominotypic subspecies was formally known only from Pia Oac National Park, Cao Bang Province of northern Vietnam (Karube 2013). This record extends its geographic distribution further into central Vietnam.