Anisopleura yunnanensis Zhu & Zhou, 1999

Phan, Quoc Toan, Kompier, Tom, Karube, Haruki & Hayashi, Fumio, 2018, A synopsis of the Euphaeidae (Odonata: Zygoptera) of Vietnam, with descriptions of two new species of Euphaea, Zootaxa 4375 (2), pp. 151-190 : 156

Anisopleura yunnanensis Zhu & Zhou, 1999

( Fig. 3a–d )

Anisopleura yunnanensis: Zhu & Zhou (1999) , pp. 33–35, Figs 1–8 ; Wilson & Reels (2003), p. 248. Anisopleura sp. (either subplatystyla Fraser, 1928 or yunnanensis Zhu & Zhou, 1999 ): Hämäläinen & Karube (2013), p. 54 [Female specimens from Sapa, Lao Cai; first record from Vietnam].

Materials examined. [ Vietnam] 3♀, Sapa, Lao Cai Prov., 1500–2000 m, native collectors ( KPM); 1♀, Tu Le, Yen Bai Prov. , 1.VI.2014, T. Kompier leg. (TKC); 1♀, Yen Bai Prov. , 11.VII.2016, T. Kompier (TKC); 2♂, Gari, Tay Giang District , Quang Nam Prov. , 11.X.2017, To Van Quang leg. ( PQTC). [ China] 1♂, Dali city, Yunnan Prov. , China, 18.VI.2013, Z. Haomiao leg. ( KPM).

Other materials confirmed by field observations. [ Vietnam] 5 exs, Yen Bai Prov., 10.V.2014, T. Kompier ; 1♂, Yen Bai Prov. , 7.IX.2014, T. Kompier; 4 exs, Lai Chau Prov, 28–29.V.2017, T. Kompier.

Notes. This is the first formal record of this species from Vietnam (but see below). Anisopleura yunnanensis resembles A. subplatystyla from India, Sikkim and Thailand by the U-shaped or complete loop on the mesepisternum of both male and female ( Fig. 3a, d ). Cerci are long and tapering in lateral view ( Fig. 3b–c ). Hämäläinen & Karube (2013) already recorded the occurrence of Vietnamese specimens (from Sapa) belonging to either Anisopleura yunnanensis or A. subplatystyla , but left their specific identity open, and urged the need of further study to confirm whether these taxa really represent two distinct species. Because the known distribution areas of Vietnamese populations are close to the distribution area of Anisopleura yunnanensis (Yunnan and Guangxi Provinces in southern China), we tentatively treat the Vietnamese populations as A. yunnanensis .

To confirm identification of Vietnamese populations, molecular analysis is needed of populations of Anisopleura yunnanensis and A. subplatystyla from Vietnam, China, Thailand and India. It is noteworthy that a population of Anisopleura sp. occurs on Pia Oac Nature Reserve, Cao Bang Province that is structurally identical to A. yunnanensis / A. subplatystyla , but has a thick, straight and decidedly bluish antehumeral stripe. Pending further molecular studies, we refrain from a specific identification of this population.

Distribution. Vietnam (Lai Chau, Lao Cai, Yen Bai and Quang Nam Provinces), China (Yunnan and Guangxi Provinces) ( Wilson & Reels 2003).

Figures

FIGURE3. Anisopleurayunnanensis. [3a–c] ♂,Yunnan and [3d]♀,Sapa.(3a) head and thorax; (3b) appendages, dorsalview; (3c) appendages, lateral view; (3d) head and thorax.

FIGURE1. Anisopleurabipugio. [1a–c] ♂,A Luoi and [1d–h]♀, Hon Ba.(1a)head and thorax;(1b)appendages,dorsal view; (1c) appendages, lateral view; (1d) body; (1e) head, frontal view; (1f) prothorax,lateral view; (1g) prothorax, dorsal view; (1h) basal half of HW.

FIGURE 2. Anisopleura qingyuanensis. [2a–d] ♂ and [2e–f] ♀, Tu Le. (2a) head and thorax; (2b) head, oblique-dorsal view; (2c) appendages, dorsal view; (2d) appendages, lateral view; (2e) head and thorax; (2f) head, oblique-dorsal view.

FIGURE 4. Bayadera bidentata. [3a–e] ♂, Tam Dao and [4f–h] ♀. (4a) head and thorax; (4b) appendages, dorsal view; (4c) appendages, ventral view; (4d) appendages, lateral view; (4e) wings; (4f) head and thorax, Guangdong, China; (4g) head and thorax, Guangxi, China, and Vietnam; (4h) abdominal tip.

FIGURE 5. Bayadera continentalis. [5a–d] ♂ and ♀, Dong Van and [5e–h] ♂, Pia Oac. (5a) male head and thorax; (5b) appendages, dorsal view; (5c) appendages, lateral view; (5d) female head and thorax; (5e) male head and thorax; (5f) appendages, dorsal view; (5g) appendages, lateral view; (5h) wings.

FIGURE 6. Bayadera hatvan. [6a–d] ♂ and [6e] ♀, Pia Oac. (6a) head and thorax; (6b) appendages, dorsal view; (6c) appendages, ventral view; (6d) wings; (6e) head and thorax.

FIGURE 7. Bayadera hyalina. [7a–f] ♂ and ♀, Yen Bai and [7g–h] ♂ and ♀, Yunnan. (7a) male head and thorax; (7b) appendages, dorsal view, (7c) appendages, lateral view; (7d) appendages, ventral view; (7e) male wings; (7f) female head and thorax; (7g) male head and thorax; (7h) female head and thorax.

FIGURE 8. Bayadera melanopteryx. [8a–e, g] ♂ and ♀, Pia Oac and [8f] ♂, Zhejiang. (8a) male head and thorax; (8b) appendages, dorsal view; (8c) appendages, lateral view; (8d) appendages, ventral view; (8e) female head and thorax; (8f) male head and thorax; (8g) male wings.