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 pardidens Grazia, Fernandes & Schwertner, 1999 Figs 19–20 , 36–38 , 51 , 145 , 166–170 , 184 Stysiana pardidens Grazia, Fernandes & Schwertner, 1999: 80–81 , figs 1, 7, 11, 15, 19, 22, 25, 28, 32, 36. Type material examined. Holotype ♂ , PERU , [Satipo], San Ramon de Pangoa , 40 km SE, 24.IV.1972 , R.T & J.C. Schuh leg. ( AMNH ) <illustrated specimen> . Paratypes : BRAZIL , ♀ , [ Minas Gerais ], Viçosa ( UFRG ) . ♀ , Rio de Janeiro , Parati , Pedra Branca , 9.XII.1941 , Berla leg. ( UFRG ) . ♂ , Santa Catarina , Nova Teutônia , I.1976 , Fritz Plaumann leg. ( UFRG ) <illustrated specimen>; ♀ , X.1975 , Fritz Plaumann leg. ( UFRG ) <illustrated specimen>. Diagnosis. Mesial margins of mandibular plates apically convergent ( Fig. 168 ). Labiomere 2 sub equal to labiomeres 3 and 4 combined ( Fig. 19 ). Mesosternum carinate. Median furrow of the peritreme long, reaching more than half of peritreme. Gyrification of evaporatorium with high wrinkles ( Fig. 169 ). Anterolateral angles of sternites dark-brown. Sub lateral margins of sternites dark-brown ( Figs 20 , 167 ). Spiracles dark-brown ( Fig. 20 ). Measurements. See Table 1 . Male genitalia. Genital cup occupying more than half of pygophore length. Middle region of dorsal rim notched ( Figs 36–38 ). Phallus : Dorsal connectives longer, surpassing the distal half of phallotheca . Dorsal processes of phallotheca medially narrow. Conjunctiva with two pairs of processes, 1+1 acute, and 1+1 sub truncate apically (see Grazia, Fernandes & Schwertner, 1999: 79 , figs 23, 26, 29). FIGURES 166–170. Stysiana pardidens Grazia, Fernandes & Schwertner, 1999 . 166–167: Habitus dorsal and ventral; 168: Head in dorsal view; 169: Evaporatorium; 170: Female receptaculum seminis and aussenwand. Abbreviation s: st, secondary thickenings of valvulae 9. Scale bars = 166–167, 170: 1.0 mm; 168–169: 0.5 mm. Ductus not preserved. Female genitalia. Anterior margins of valvifers 9 concave. Posterior margins of laterotergites 8 straight ( Figs 38 , 166 ). Proximal ductus receptaculi with equal diameter than the ductus inside vesicular area. Annular flanges divergent (see Grazia, Fernandes & Schwertner, 1999: 81 , fig. 36). Distribution. Colombia ; Guyana ; Brazil ( Minas Gerais , Rio de Janeiro , and Santa Catarina ); Peru ( Fig. 184 ).