Taxonomy of Micronectidae (Heteroptera: Nepomorpha) from Vietnam, with descriptions of 11 new species Author Ha, Tuyet Ngan 568A022B-D36D-4147-8B0D-FB35B2A4D197 Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam. hatuyetngan95@gmail.com Author Tran, Anh Duc 3CB36F17-D917-4600-B888-C33B1C04259F Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam. tran.anhduc@hus.edu.vn text European Journal of Taxonomy 2021 2021-06-24 756 1 82 http://dx.doi.org/10.5852/ejt.2021.756.1407 journal article 5963 10.5852/ejt.2021.756.1407 73c0dde0-1a03-4fe2-8d13-05cd614ff3b1 2118-9773 5033010 4A60FB62-20D7-4DC9-A4EA-BCE633730111 Micronecta ( Basileonecta ) sedula Horváth, 1905 Figs 1B , 2E–G Micronecta sedula Horváth, 1905: 423 ( type locality: Akashi, Japan ). Micronecta quadrivittata Matsumura, 1905: 62 ( type locality: Hokkaido and Honshu, Japan ). Micronecta quadriseta Lundblad, 1933a: 460–461 , pl. XIII fig. 7, text fig. 6 ( type locality: Soochow (Suzhou), China ). Micronecta sedula – Wróblewski 1960: 309–313 , pl. XVI (redescription); 1967: 237 (descriptive notes); 1968: 776 (checklist, synonymy list). — Jansson 1995: 28–29 (catalogue). Micronecta quadrivittata – Matsumura 1915: 114 (synonymised with Micronecta sedula ). Micronecta quadriseta – Wróblewski 1960: 309–313 (synonymised with Micronecta sedula ). Diagnosis Body length 2.7–3.4. Pronotum distinctly longer than median head length, without dark transverse stripe. Hemelytron ( Fig. 1B ) pale yellowish, corium with four brown stripes. Fig. 1. Habitus photos of species of Micronecta Kirkaldy, 1897 . A . M . scutellaris ( Stål, 1858 ) , ♂ (ZVNU). B . M . sedula Horváth, 1905 , ♂ (ZVNU). C . M . siva (Kirkaldy, 1897) , ♀ (ZVNU). D . M. jaczewskii Wróblewski, 1962 , ♂ (ZVNU). E . M . decorata Lundblad, 1933 , ♂ (ZRC). F . M. desertana Distant, 1920 , ♂ (ZVNU). G . M . ludibunda Breddin, 1905 , ♂ (ZVNU). All to the same scale. Males: fore femur with four spines in proximal third ventrally, four spines on middle third and a pair of spines on distal third dorsally; fore tibia with a pair of spines on distal third; palar claw slender, straight. Median lobe of sternite VII with two long setae. Free lobe sub-rectangular, posterior margin concave, lateral angle produced, with about 10 long setae ( Fig. 2E ). Left paramere: shaft stout, apical part slightly swollen, apex obtuse, mesial side with minute spine-like scales; basal lobe tongue-shaped ( Fig. 2G ). Right paramere: shaft slender slightly curved pre-apically, apex narrowly rounded ( Fig. 2F ). Material examined VIETNAM – Quang Ninh Prov. • 1 ♂ , 1 ♀ ; Dong Rui ; 12 Sep. 2019 ; T.A.N. Nguyen leg.; #1902; ZVNU . – Ninh Binh Prov. • 1 ♂ , 1 ♀ ; Gia Vien , Van Long Wetland Nature Reserve ; 25 Aug. 2002 ; Q.K. Hoang and V.K. Dinh leg.; VNNB0201 ; ZRC . – Thua Thien Hue Prov . • 5 ♂♂ , 6 ♀♀ ; Quang Dien District , Quang Loi Commune , Con Toc ; 7 May 2012 ; A.D. Tran leg.; TAD1212 ; ZVNU . Distribution Vietnam : Hoa Binh ( Chine ), Ninh Binh (Cuc Phuong), and Quang Tri ( Wróblewski 1962 , 1967 ); first records from Quang Ninh, Ninh Binh (Van Long), Thua Thien Hue. Specimens from Thua Thien Hue were collected in the brackish water of a coastal lagoon. Other countries: Russia (Khanka Lake), Korea , Japan , eastern China ( Wróblewski 1960 , 1968 ; Nieser et al. 2005 ). Remarks See Remarks under M. siva .