Bayadera bidentata Needham, 1930

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 : 157-158

publication ID	https://doi.org/10.11646/zootaxa.4375.2.1
publication LSID	lsid:zoobank.org:pub:7A4595B8-9FDF-41A9-9C39-A8A4A83FF302
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treatment provided by	Plazi (2018-01-24 10:32:50, last updated 2018-01-24 10:32:53)
scientific name	Bayadera bidentata Needham, 1930
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( Fig. 4a–h)

Bayadera bidentata: Needham (1930) , p. 218, pl. r6, Fig. 7; Asahina (1956), p. 207, Fig. 4; Sui & Sun (1984), pp. 209–211; Davies & Tobin (1984), pp. 22–23; Wilson & Reels (2003), p. 249, Fig. 13; Hämäläinen (2004), p. 388; Do & Dang (2007), p. 31, distribution map [Specimens from Mt Pia Oac, Cao Bang Prov. and Tam Dao National Park, Vinh Phuc Prov.; first record from Vietnam]; Wilson & Zaifu (2007), pp. 99–101, 120, Fig. 4; Zhang (2010), p. 25 (species list).

Materials examined. [ Vietnam] 1♂ 1♀, Xuan Son National Park , Phu Tho Prov., 30.V.2015, T. Kompier leg.

(TKC); 1♂, Tam Dao National Park , Vinh Phuc Prov. , 18.V.2014, T. Kompier leg. (TKC). [ China] 1♀, Zhizhiqu , Zhuangzu , Guangxi Prov. , 2–4.VI.2004, H. Karube leg. ( KPM); 1♀, Nanling, Guandong Prov. , 22–26.VII.2004, Y. Kishida leg. ( KPM); 1♀, Nanling, Guandong Prov., 30.VI.2010, Z. Haomiao leg. ( KPM); 5♂ 5♀, Damingshan, Guangxi Prov., 6–7.VI.2014, F. Hayashi leg. (FHC).

Notes. Male Bayadera bidentata is characterized by an entirely blackish thorax and abdomen ( Fig. 4a), the lower half of the thorax extensively covered with grey pruinosity in life. Wings are hyaline, very faintly tinged yellow from the base to the level of pterostigma ( Fig. 4e). Cerci have large spines and two prominent tubercles on inner sides ( Fig. 4b–d). Yellow markings of the female thorax vary from the relatively poorly marked type in Guangdong Province, China ( Fig. 4f), to the more extensively marked types in Guangxi Province, China and northern Vietnam ( Fig. 4g). The tip of female abdomen has one distinct oval spot laterodorsally on S9 ( Fig. 4h).

Distribution. Vietnam (Cao Bang [ Do & Dang 2007], Phu Tho and Vinh Phuc Provinces), China (Zhejiang, Fujian, Guangdong, Hubei, Guangxi and Sichuan Provinces) ( Wilson & Reels 2003, Hämäläinen 2004).

References

Asahina, S. (1956) Dragonflies of West Tien-Mu-Shan, Central China. Entomologiske Meddelelser, 27, 204 - 228.

Davies, D. A. L. & Tobin, P. (1984) The dragonflies of the world: A systematic list of the extant species of Odonata. Vol. 1. Zygoptera, Anisozygoptera. Societas Internationalist Odonatologica Rapid Communications, 3 (Supplements), 9 - 127.

Do, M. C. & Dang, T. T. H. (2007) Checklist of dragonfly from Vietnam. Vietnam National University Publisher, Hanoi, 182 pp.

Hamalainen, M. (2004) Caloptera damselflies from Fujian (China), with description of a new species and taxonomic notes (Zygoptera: Calopterygoidea). Odonatologica, 33, 371 - 398.

Needham, J. G. (1930) A manual of the dragonflies of China. A monographic study of the Chinese Odonata. Zoologia Sinica, Series A. Invertebrates of China. Volume XI. Fascicle 1. The Fan Memorial Institute of Biology, Peiping, 345 pp., 20 pls., 11 pp.

Sui, J. & Sun, H. (1984) Common species of dragonflies from China. Agriculture Publishing House, Beijing, 328 pp. [in Chinese, English title]

Wilson, K. D. P. & Reels, G. T. (2003) Odonata of Guangxi Zhuang Autonomous Region, China, part 1: Zygoptera. Odonatologica, 32, 237 - 279.

Wilson, K. D. P. & Zaifu, X. (2007) Odonata of Guangdong, Hong Kong and Macau, South China, part 1: Zygoptera. International Journal of Odonatology, 10, 87 - 128, pls. I - VIII.

Zhang, H. (2010) The superfamily Calopterygoidea in South China: taxonomy and distribution. Progress Report for 2009 surveys. IDF - Report, Newsletter of the International Dragonfly Fund, 26, 1 - 36.