Prodasineura verticalis Selys, 1860

Phan, Quoc Toan & Ngo, Quoc Phu, 2020, A revision of the systematics and distribution of the damselfly genus Prodasineura Cowley, 1934 (Odonata: Zygoptera: Platycnemididae) in Vietnam with description of two new species, European Journal of Taxonomy 650, pp. 1-27 : 9-11

publication ID	https://doi.org/ 10.5852/ejt.2020.650
publication LSID	lsid:zoobank.org:pub:3EAB8173-2208-43AC-84E1-AFCE8B9376AD
DOI	https://doi.org/10.5281/zenodo.3853277
persistent identifier	https://treatment.plazi.org/id/03BBEF6A-2260-CA69-CA34-F8C06427FBE6
treatment provided by	Valdenar
scientific name	Prodasineura verticalis Selys, 1860
status

Treatment

Prodasineura verticalis Selys, 1860 View in CoL

Figs 6 View Fig D–F, 7 View Fig D–F, 8 View Fig D–E, 13 View Fig G–H, 16 View Fig A, 18 View Fig

Material examined

VIETNAM – Kien Giang Province • 1 ♂; Phu Quoc Island ; 1 Jan. 2016; T. Kompier leg.; TKC • 1 ♂; Phu Quoc Island ; 18 Apr. 2016; Q.T. Phan leg.; ZCDTU 2016041810-ODO • 3 ♂♂, 1 ♀; Phu Quoc Island, Nui Chua ; 6 Mar. 2018; To Van Quang leg.; ZCDTU 2018030611-ODO . – Lam Dong Province • 2 ♂♂, 1 ♀; Bao Loc District, Da Ton; 22 Apr. 2016; Q.T. Phan leg.; ZCDTU 2016042211-ODO . – Kon Tum Province • 2 ♂♂, 2 ♀♀; Chu Mom Ray National Park; 12 Jun. 2019; Q.T. Phan leg.; ZCDTU 2019061211-ODO .

Diagnosis

In Vietnam, males of both P. croconota and P. verticalis with large egg-shaped orange markings on dorsum of synthorax but those in P. croconota shorter and broader than in P. verticalis ( Fig. 6 View Fig C–D), less saturated in colouration. In males of P. croconota , head with two small spots dorsally adjacent to ocellar tubercle ( Fig. 6A View Fig ) but with large transverse stripe in P. verticalis ( Fig. 6E View Fig ). Cerci in P. verticalis mostly black except for indistinct basal yellow stripe dorsally ( Fig. 7 View Fig D–E) while cerci dorsally entirely yellowish or bluish in P. croconota ( Fig. 7 View Fig A–B); ultimate segment of genital ligula of P. verticalis acute at apex ( Fig. 7F View Fig ) but blunt in P. croconota ( Fig. 7C View Fig ). Posterior pronotal lobe of prothorax of female P. verticalis characterized by two thin, long horns ( Fig. 13 View Fig G–H) while robust and short in P. croconota ( Fig. 13 View Fig A–B).

Remarks

Bui (2007) recorded Elattoneura sp. at Phu Quoc Island, which subsequently was reidentified as a Prodasineura sp. by Do et al. (2011). Based on examination of specimens, it was identified as P. verticalis by Kompier (2019). This paper confirms the identification of the Prodasineura species from Phu Quoc Island recorded in Bui (2007), Do et al. (2011) and Kompier (2019) was P. verticalis . Asahina (1997) presumed that a male from Mai Chau of Hoa Binh Province (northern Vietnam) was probably P. verticalis (see in Asahina 1997: 20, figs 7–8). However, according to Asahina, this was “a pale bluish striped, black-bodied species”, which is not consistent with P. verticalis with orange stripes. Asahina’s drawing shows a species with thin antehumeral stripe, which may well be Prodasineura coerulescens , which occurs also in the similar lowland limestone forest in Quang Binh Province, rather than P. hoffmanni (see in Asahina 1997: 20, figs 7–8) which is recorded further south from primary forest of the Central Highlands or evergreen forests in Cat Tien National Park. Asahina’s (1997) male should be re-examined to establish its identity with certainty.

Distribution

Vietnam ( Fig. 18 View Fig ): Kon Tum (Chu Mom Ray National Park), Lam Dong (Bao Loc District), Dong Nai (Cat Tien National Park) and Kien Giang (Phu Quoc Island) Provinces ( Kompier 2019; this study).