Revision of theGonioctena flavoplagiata species-group (Coleoptera: Chrysomelidae: Chrysomelinae), with descriptions of two new species from China and Laos Author Cho, Hee-Wook Department of Biodiversity and Evolutionary Taxonomy, University of Wrocław, Przybyszewskiego 65, 51 - 148 Wrocław, Poland lampides@gmail.com Author Borowiec, Lech Department of Biodiversity and Evolutionary Taxonomy, University of Wrocław, Przybyszewskiego 65, 51 - 148 Wrocław, Poland lech.borowiec@uwr.edu.pl text Acta Entomologica Musei Nationalis Pragae 2016 2016-11-15 56 2 755 768 journal article 55917 10.5281/zenodo.5310352 7918db56-2267-401e-91c6-727d7afe8555 0374-1036 5310352 4B810B58-5BC7-4895-BE86-8F1EF4091635 Gonioctena ( Asiphytodecta ) mausonensis Cho & Borowiec, 2016 ( Figs 4 , 9 , 25–26 , 29 ) Gonioctena ( Asiphytodecta ) flavoplagiata (partim): YANG et al. (2014) : 384 (taxonomy, misidentification); YANG et al. (2015) : 54 (catalogue, misidentification). Gonioctena ( Asiphytodecta ) mausonensis Cho & Borowiec, 2016: 169 (original description). Type locality. Vietnam , Lang Son Province , Loc Binh, Mt. Mau Son. Type material examined. HOLOTYPE : ♂, ‘ Tonkin , Montes Mauson,April, Mai 2-3000’, H. Fruhstorfer // 24 // Jacoby Coll.1909-28a. // flavoplagiata Jac. // HOLOTYPUS Gonioctena ( Asiphy .) mausonensis sp. n. Cho & Borowiec 2014’ ( BMNH ). PARATYPE : 1 ♂, ‘ Tonkin , Montes Mauson,April, Mai 2-3000′, H. Fruhstorfer // PARATYPUS Gonioctena ( Asiphy .) mausonensis sp. n. Cho & Borowiec 2014’ ( LMCM ). Description. See CHO & BOROWIEC (2016) . Differential diagnosis. Gonioctena ( A. ) mausonensis can be easily distinguished from G . ( A. ) eburoides , G . ( A. ) flavoplagiata , G . ( A. ) jindrai sp. nov. and G . ( A. ) truncaticornis sp. nov. by its reddish-brown venter and subdiamond-shaped apical process of aedeagus ( Fig. 26 ). Distribution. Vietnam : Lang Son ( Fig. 29 ). Remarks. The male genitalia of Gonioctena ( A. ) flavoplagiata illustrated by YANG et al. (2014) without any doubts refer to G . ( A. ) mausonensis . The correct drawings of male genitalia of G . ( A. ) flavoplagiata were provided by CHO & BOROWIEC (2016) .