Lyriothemis pallidistigma, Kompier & Holden & Makbun, 2021

Kompier, Tom, Holden, James & Makbun, Noppadon, 2021, A new species of Lyriothemis Brauer, 1868 from Vietnam and Thailand (Odonata Libellulidae), Zootaxa 4933 (4), pp. 586-594 : 587

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”.

Figures

FIGURE 1. Hamules of Lyriothemis species in lateral view. (A,C,D) After Ris (1909), (E) After Asahina (1988) and (F) After Van der Poorten (2009). (A) L. elegantissima; (B) L. pallidistigma sp. nov. (holotype); (C) L. acigastra; (D) L. pachygastra; (E) L. mortoni; (F) L. defonsekai.

FIGURE 2. Lyriothemis pallidistigma sp. nov., scans of dorsal view (A–C, E), or ventral view (D,F). (A,B) Habitus of holotype male and paratype female used for description; (C,D) Abdomen of paratype male, Cat Tien NP, 4.VIII.2018; (E,F) Abdomen of paratype female, Cat Tien NP, 4.VIII.2018.

FIGURE 3. Lyriothemis pallidistigma sp. nov., scans of lateral view of thorax (A,B) or habitus (C,D). (A) Paratype female, Cat Tien NP, 4.VIII.2018; (B) Paratype male, Cat Tien NP, 4.VIII.2018; (C) Paratype female used for description; (D) Holotype male.

FIGURE 4. Lyriothemis pallidistigma sp. nov., all specimens from Cat Tien NP, 4.VIII.2018 (A) Frontal view of head of paratype male 1; (B) Vulvar lamina in ventral view of paratype female; (C) Hamules in posterior view of paratype male 1; (D) Hamules in anterior view of paratype male 2; (E) Hamule and genital lobe in lateral view of paratype male 1; (F) Hamule and genital lobe in lateral view of paratype male 2.

FIGURE 5. Habitat (A) and photos of life specimens (B–D) of Lyriothemis pallidistigma sp. nov. (A) Temporary inundated area in Cat Tien NP (photo by JH); (B) Male and female, Makham, Chantaburi Prov, Thailand, 15.VII.2018 (photo by NM); (C) Immature male, Cat Tien NP, Dong Nai Prov., southern Vietnam, 14.VI.2017 (photo by JH); (D) Male, same location as previous, 9.VII.2017 (photo by Colin Adams).