Lyriothemis pallidistigma sp. nov.

(Figs 1B, 2, 3, 4, 5 B–D)

Type specimens. Holotype: ³, 11.4416 N, 107.4291 E, Cat Tien NP, Dong Nai Prov., southern Vietnam, 5.VIII.2014, TK leg . Paratypes: 1 ♀, same locality, date and collector as holotype (used for description); 2 ³³ 1 ♀, 11.4418 N, 107.4289 E, Cat Tien NP, Dong Nai Prov., southern Vietnam, 4.VIII.2018, JH leg.; 2 ³³ 1 ♀, 12.7525 N, 102.2368 E, Makham, Chantaburi Prov., Thailand (19 m alt.), 14.VII.2018, NM leg.; 2 ³³ 1 ♀, same locality and collector, 30. VI.2019 .

Additional observations: 1 ♀, Cat Tien NP, Dong Nai Prov., southern Vietnam, 19.VII.2014, JH; 1 ³, Cat Tien NP, Dong Nai Prov., southern Vietnam, 24.VII.2014, JH; 3 ³³ 1 ♀, 11.4416 N, 107.4291 E, Cat Tien NP, Dong Nai Prov., southern Vietnam, 5.VIII.2014, TK ; 1 immature ³, Cat Tien NP, Dong Nai Prov., southern Vietnam, 14. VI.2017, JH; 1 ³, same date and location as previous, 9.VII.2017, JH; 1 ³ 1 ♀, Makham, Chantaburi Prov., Thailand, 15.VII.2018, NM ; 10 ♀♀, 12.4556 N, 102.4199 E, Khao Saming, Trat Prov., Thailand (12 m alt.), 18.VII.2020, Udomsak Sribal .

Etymology. The species epithet pallidistigma refers to the cream-white pterostigmata of the male, rare amongst Lyriothemis . From Latin, meaning “pale mark”.