Description of Chlorogomphus danhkyi sp. nov. from Vu Quang National Park, central Vietnam with notes on other congeners from the Park (Odonata: Chlorogomphidae)

Abstract

Chlorogomphus danhkyi sp. nov. (Holotype ♂: Khe Ro, Vu Quang National Park, Ha Tinh Province, 15.0444 N, 107.9270 E, altitude 1480 m) based on both sexes is described. The new species differs from Chlorogomphus piaoacensis Karube, 2013 mainly by the shape of male cerci. Other species of Chlorogomphus Selys, 1854 from Vu Quang National Park are also recorded.

Description of two new species of the genus Chlorogomphus Selys, 1854 (Odonata: Chlorogomphidae) and a new record of Chlorogomphus gracilis Wilson & Reels, 2001 from the Central Highlands of Vietnam

“…Recently, several new species have been discovered, and new records have been documented from different Vietnamese locations: C. hiten (Sasamoto, Yokoi & Teramoto, 2011), C. papilio Ris, 1927 and C. piaoacensis Karube, 2013 were discovered in the North; C. canhvang Kompier &Karube, 2018 andC. danhkyi Phan, Karube, Hung &Anh, 2021 were found in the Central-North; and C. aritai Karube, 2013 andC. caloptera Karube, 2013 were collected from the Central Highlands (Karube 2013(Karube , 2015Kompier 2014;Kompier & Karube 2018;Phan et al 2021).…”

“…danhkyi Phan, Karube, Hung &Anh, 2021 were found in the Central-North; and C. aritai Karube, 2013 andC. caloptera Karube, 2013 were collected from the Central Highlands (Karube 2013(Karube , 2015Kompier 2014;Kompier & Karube 2018;Phan et al 2021).…”

“…Quentin, 1936;including C. auratus and C. caloptera), Nubatamachlorus Karube, 2013 (type species: C. nakamurai;including C. aritai), Vietnamchlorus Karube, 2013 (including only the type species, C. albomarginatus), Orogomphus Selys, 1878 (type species: C. splendidus (Selys, 1878); including C. piaoacensis), Sinorogomphus Carle, 1995 (type species: C. nasutus;including C. tunti Needham, 1930, C. sachiyoae and C. vietnamensis) and Petaliorogomphus Karube, 2013 (type species: C. takakuwai). Phan et al (2021) followed this systematic arrangement and placed a new species, C. danhkyi, in the subgenus Orogomphus without explanation. Karube & Phan (2016) recorded C. papilio and Kompier & Karube (2018) described C. canhvang from Vietnam, without assigning these species to any subgenus.…”