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 Subgenus Mesonecta Poisson, 1938 Mesonecta Poisson, 1938: 354 ( type species: Mesonecta pilosa Poisson, 1938 , by monotypy); originally as a separate genus, downgraded to subgenus by Hutchinson (1940) . Diagnosis Males: pala with a secondary narrow claw, primary claw apically widened; strigil present; median lobe of sternite VII with two long and thick setae; free lobe of tergite VIII rounded apically; shaft of left paramere broad, slightly sinuate, with wide truncate apex; right paramere narrow, straight, with sharply pointed apex (adapted from Hutchinson 1940 ; Nieser et al. 2005 ). Remarks Hutchinson (1940) described two Asiatic species, M. khasiensis and M. waltoniana , and included both in Mesonecta . Nieser et al. (2005) , when establishing the subgenus Unguinecta , transferred those two species to Unguinecta and also provided a detailed comparison between these two subgenera. At the moment, Mesonecta contains only one species, Mesonecta pilosa Poisson, 1938 , with its distribution restricted to Madagascar ( Nieser et al. 2005 ).