Prodasineura croconota Ris, 1916

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

Prodasineura croconota Ris, 1916

Figs 6 A–C, 7 A–C, 8 A–C, 13 A–B, 16 B, 18

Material examined

VIETNAM – Gia Lai Province • 2 ♂♂, 2 ♀♀; K’Bang District, KaNak ; 25 Apr. 2015; Q.T. Phan leg.; ZCDTU 2015042502-ODO . – Ha Tinh Province • 3 ♂♂, 2 ♀♀; Vu Quang National Park ; 7 Sep. 2015; Q.T. Phan leg.; ZCDTU 2015090702-ODO . – Quang Nam Province • 1 ♂; Cu Lao Cham Island , 25 Sep. 2015; Q.T. Phan leg.; ZCDTU 2015092502-ODO • 1 ♂; Tay Giang District, Bhalee Commune ; 25 Jul. 2019; Q.T. Phan leg.; ZCDTU 2019072510-ODO . – Lam Dong Province • 4 ♂♂, 1 ♀; Bao Loc District, Bao Lam ; 11 Mar. 2016, Q.T. Phan leg.; ZCDTU 2016031101-ODO • 1 ♂; Bao Loc District, Dambri ; 12 Jul. 2017; Nguyen Dang Van leg.; ZCDTU 2017071702-ODO . – Quang Binh Province • 4 ♂♂, 4 ♀♀; Minh Hoa District, Tan Hoa Commune ; 14 Apr. 2016; Q.T. Phan leg.; ZCDTU 2016041401-ODO . – Da Nang City • 1 ♂; Hai Van, Van village ; 21 Feb. 2017; Q.T. Phan leg.; ZCDTU 2017022102-ODO • 2 ♂♂; Son Tra Nature Reseve ; 8 Jun. 2017; Q.T. Phan leg.; ZCDTU 2017060802- ODO . – Khanh Hoa Province • 4 ♂♂; Hon Ba Nature Reserve ; 28 Mar. 2018; Q.T. Phan leg.; ZCDTU 2018032802-ODO . – Nghe An Province • 4 ♂♂, 2 ♀♀; Pu Mat National Park (Con Cuong District, Mon Son Commune ); 13 May 2019; Q.T. Phan leg.; ZCDTU 2019051302-ODO .

Diagnosis

Male characterized by large egg-shaped orange-yellow markings on dorsum of synthorax ( Fig. 6A, C ); head dorsally with two small spots adjacent to ocellar tubercle ( Fig. 6A ); cerci varying from bluish to yellow dorsally, most of paraproct yellowish ( Fig. 7 A–B). Female differing from male by having transverse yellow stripe across epicranium, whitish stripes on synthorax, thin antehumeral stripes ( Fig. 6B ). Structure of posterior pronotal lobe of prothorax in dorsal view similar to that of P. autumnalis with two rounded processes posteriorly, two short, robust horns distally ( Figs 8 A–B, 13A–B).

Distribution

Vietnam ( Fig. 18 ): Lang Son (Huu Lien Nature Reserve), Phu Tho (Xuan Son National Park), Thai Nguyen, Vinh Phuc (Me Linh), Nghe An (Pu Mat National Park), Ha Tinh (Huong Son District and Vu Quang National Park), Quang Binh (Minh Hoa District), Quang Tri, Quang Nam (Tay Giang District and Cu Lao Cham Islands), Da Nang (Son Tra Nature Reserve), Gia Lai (K’Bang District), Lam Dong (Bao Loc District) and Khanh Hoa (Hon Ba Nature Reserve) Provinces ( Kompier 2019; T. Kompier pers. comm.; Phan & Dinh 2016; Phan & Ngo 2019; this study).

Figures

Fig. 6. Prodasineura Cowley, 1934 spp. A–C. P. croconota Ris, 1916, ZCDTU 2017060802-ODO. D–F. P. verticalis Selys, 1860, ZCDTU 2018030611-ODO. A, E = ♂, head and thorax, lateral view; C–D = ♂, synthorax, dorsal view; B, F = ♀, head and thorax, lateral view. Images not to scale.

Fig. 7. Prodasineura Cowley, 1934 spp., males. A–C. P. croconota, ZCDTU 2017060802-ODO. D–F. P. verticalis Selys, 1860, ZCDTU 2018030611-ODO. A, D, G = tip of abdomen, dorsal view; B, E = tip of abdomen, lateral view; C, F = genital ligula, oblique-ventral view. Images not to scale.

Fig. 8. Prodasineura Cowley, 1934 spp., females. A–C. P. croconota Ris, 1916, ZCDTU 2017060802- ODO. D–E. P. verticalis Selys, 1860, ZCDTU 2018030611-ODO. F. P. laidlawi (Forster in Laidlaw, 1907), modified from Asahina (1983: fig. 22). A, G–F = prothorax, lateral view; B, D = prothorax, dorsal view; C, E = tip of abdomen, lateral view. Images not to scale.

Fig. 13. Posterior pronotal lobe of prothorax of Prodasineura Cowley, 1934 spp., females, lateral and dorsal views. A–B. P. croconota Ris, 1916, ZCDTU 2017060802-ODO. C–D. P. kong sp. nov., ZCDTU 019071817-ODO. E–F. P. lancastrei sp. nov., ZCDTU 2019051217-ODO. G–H. P. verticalis Selys, 1860, ZCDTU 2018030611-ODO. Images not to scale.

Fig. 16. Habitat of Prodasineura Cowley, 1934 spp. in Vietnam. A. Gia Trang stream in Chu Mom Ray National Park, home of P. doisuthepensis Hoess, 2007 and P. verticalis Selys, 1860. B. Typical stream where P. lancastrei sp. nov., P. autumnalis (Fraser, 1922) and P. croconota Ris, 1916 occur, in Pu Mat National Park. C. Open limestone stream in Tan Hoa Commune, Minh Hoa District of Quang Binh Province with three species: P. autumnalis, P. kong sp. nov. and P. coerulescens (Fraser, 1932) coexisting. D. Habitat of P. hoffmanni Kosterin, 2015 and P. autumnalis in Mang Canh, Kon Plong District of Kon Tum Province.

Fig. 18. Distribution map of Prodasineura Cowley, 1934 spp. in Vietnam (orange group species). (●) P. croconota Ris, 1916. (●) P. verticalis Selys, 1860. (●) Prodasineura kong sp. nov. (●) P. lancastrei sp. nov.