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 Author Phan, Quoc Toan 9DBB241C-A070-45DF-A111-B7BDDB56EEEE The Center for Entomology & Parasitology Researches, Institute of Researches and Training of Medicine, Biology & Pharmacy, Duy Tan University, 3 Quang Trung, Da Nang, Vietnam. & urn: lsid: zoobank. org: author: 9 DBB 241 C-A 070 - 45 DF-A 111 - B 7 BDDB 56 EEEE & Corresponding author: pqtoan 84 @ gmail. com; phanquoctoan 1 @ duytan. edu. vn pqtoan84@gmail.com Author Ngo, Quoc Phu 34581D77-1365-4D24-A1BF-EB791D08ABD5 The Center for Entomology & Parasitology Researches, Institute of Researches and Training of Medicine, Biology & Pharmacy, Duy Tan University, 3 Quang Trung, Da Nang, Vietnam. & Email: ngoquocphu @ gmail. com; ngoquocphu 1 @ duytan. edu. vn & urn: lsid: zoobank. org: author: 34581 D 77 - 1365 - 4 D 24 - A 1 BF-EB 791 D 08 ABD 5 ngoquocphu@gmail.com text European Journal of Taxonomy 2020 2020-05-22 650 1 27 journal article 21909 10.5852/ejt.2020.650 04bc4f07-1283-4058-9641-2fce5ee10aca 2118-9773 3839797 3EAB8173-2208-43AC-84E1-AFCE8B9376AD Prodasineura doisuthepensis Hoess, 2007 Figs 2 C–D, 3 C–D, F, 4 D–F, 5 C, 16 A, 17 Material examined VIETNAM – Kon Tum Province • 1 ♂ ; Kon Plong District , Mang Canh ; 22 Sep. 2015 ; Q.T. Phan leg.; ZCDTU 2015092201-ODO • 4 ♂♂ , 1 ♀ ; Chu Mom Ray National Park ; 22 Jun. 2017 ; Q.T. Phan leg.; ZCDTU 2017062201-ODO . – Dak Lak Province • 1 ♂ ; Chu Yang Sin National Park ; 18 May 2018 ; Q.T. Phan leg.; ZCDTU 2018051801-ODO . – Gia Lai Province • 8 ♂♂ ; K’Bang District , Dak Roong Commune ; 24 May 2018 ; Q.T. Phan leg.; ZCDTU 2018052410-ODO • 3 ♂♂ , 2 ♀♀ ; K’Bang District , Ko Roong Commune , Ka Pang stream ; 28 Jun. 2019 ; Q.T. Phan and Q.P. Ngo leg.; ZCDTU 2019062810-ODO . Fig. 2. Prodasineura Colwey, 1934 spp., head and thorax, lateral view (A, C, E: ♂, B, D, F: ♀) A–B . P. coerulescens (Fraser, 1932) , ZCDTU 2016100801-ODO. C–D . P. doisuthepensis Hoess, 2007 , ZCDTU 2017062201-ODO. E–F . P. hoffmanni Kosterin, 2015 , ZCDTU 2017062202-ODO (E). Fig. 2F is modified from Kosterin (2015 : fig. 2a), from Dak Dam village, Mondulkiri Province, Cambodia. Images not to scale. Diagnosis Male distinctive with large blue oval markings on mesepisterum ( Fig. 2C ); dorsum of S9 with rounded blue spot ( Fig. 3C ), versus only very small blue dot in P. hoffmanni ( Fig. 3G ) or large marking on S9, two smaller dots or stripe on S 8 in P. coerulescens ( Fig. 3A ). Posterior pronotal lobe of female prothorax similar to that in P. hoffmanni , with short horn on each side, two rounded processes posteriorly; lobes not converging ( Figs 4 D–E, 5C). Distribution Vietnam ( Fig. 17 ): Gia Lai (K’Bang District), Kon Tum (Chu Mom Ray National Park and Kon Plong District), Dak Lak (Chu Yang Sin National Park), Lam Dong (Bao Loc District), Khanh Hoa (Hon Ba Nature Reserve) and Dong Nai (Cat Tien National Park) Provinces ( Kompier 2019 ; Phan & Ngo 2019 ; this study).