Taxonomic updates on the Mecocephala group (Hemiptera: Pentatomidae) Redescription of ‘ Hypatropis complex’, with a review of genitalic terminology and new records Author Barros, Lurdiana D. Laboratory of Systematic Entomology, Department of Zoology, Institute of Biosciences, Campus do Vale, Federal University of Rio Grande do Sul, Avenue Bento Gonçalves, 9500, Porto Alegre 91501 - 970, Brazil. Author Barão, Kim R. Laboratory of Systematics and Diversity of Arthropods, Penedo Educational Unit, Arapiraca Campus, Federal University of Alagoas, Avenue Beira Rio, s / n, Penedo 57200 - 000, Brazil. Author Grazia, Jocelia Laboratory of Systematic Entomology, Department of Zoology, Institute of Biosciences, Campus do Vale, Federal University of Rio Grande do Sul, Avenue Bento Gonçalves, 9500, Porto Alegre 91501 - 970, Brazil. text Zootaxa 2021 2021-06-03 4981 1 1 46 journal article 5931 10.11646/zootaxa.4981.1.1 a6f5f409-8f2f-442a-915a-bbe8129d625a 1175-5326 4897374 C98FB7A5-59AD-4D8D-9900-3EAFA339C537 Stysiana meridionalis Grazia, Fernandes & Schwertner, 1999 Figs 54 , 144 , 160–165 , 184 Stysiana meridionalis Grazia, Fernandes & Schwertner, 1999: 78–79 , figs 3, 6, 10, 14, 18, 31, 35; Ruschel et al . 2013: 559 , fig. 3e; Coscarón, 2017: 232 . Type material examined. Holotype ♂ , BRAZIL , Santa Catarina , [Florianópolis], Morro das Pedras , 22.I.1957 , Pe. Buck leg. ( MCNZ ) <illustrated specimen >. Paratypes : ARGENTINA , ♀ , [ Buenos Aires ], Buenos Aires , J.B. Daguerre leg. ( MACN ) <illustrated specimen>; ♂ ( UFRG ) <illustrated specimen >. Diagnosis. Mesial margins of mandibular plates apically divergent. Mesosternum carinate. Median furrow of the peritreme long, reaching more than half of peritreme. Gyrification of evaporatorium with low wrinkles ( Fig. 162 ). Anterolateral angles of sternites dark-brown. Spiracles dark-brown ( Figs 161, 163 ). Measurements. See Table 1 . Male genitalia. Genital cup occupying less than half of pygophore length. Middle region of dorsal rim entire (see Grazia, Fernandes & Schwertner, 1998: 75–78 , figs 6, 10, 14, 18). Female genitalia. Anterior margins of valvifers 9 straight. Posterior margins of laterotergites 8 obtusely projected ( Fig. 164 ). Proximal ductus receptaculi with greater diameter than the ductus inside vesicular area. Annular flanges convergent related to each other ( Figs 54 , 165 ). Distribution. Brazil ( Santa Catarina ); Argentina ( Buenos Aires ) ( Fig. 184 ).