Hypatropis inermis ( Stål, 1872 )

Barros, Lurdiana D., Barão, Kim R. & Grazia, Jocelia, 2021, Taxonomic updates on the Mecocephala group (Hemiptera: Pentatomidae) Redescription of ‘ Hypatropis complex’, with a review of genitalic terminology and new records, Zootaxa 4981 (1), pp. 1-46 : 13

Hypatropis inermis ( Stål, 1872)

Figs 1, 5 , 13 , 27–29 , 52 , 55 , 73–82 , 111

Melpia inermis Stål, 1872: 31 ; Berg, 1879: 50; Lethierry & Severin, 1893: 146.

Hypatropis inermis: Kirkaldy, 1909: 91 ; Fernandes & Grazia, 1996: 347–349, figs 4, 9, 14, 19, 24, 29, 34, 38; Gaberlotto & Campos, 2014: 26; Krinski et al. 2015: 12–13, fig. 1A–C; Barão et al. 2017: 110; Coscarón, 2017: 227; Silva et al. 2018: 429; Barão et al. 2020: figs 27, 69; Barros et al. 2020b: figs 2A, 18E; Barros et al. 2021: 457–458, figs 75–77.

Oenopiella impicta Jensen-Haarup, 1928: 186 .

Type material examined. Melpia inermis : Holotype ♂, BRAZIL, Rio de Janeiro, Kinb. [Kimber] < Photo examined> ( NHRS). Oenopiella impicta : Lectotype ♂, ARGENTINA, Buenos Aires, “Type coll. J=Hrp., Type, B’ Aires [Buenos Aires, Argentina], W. Sorensen, Oenopiella impicta J= Hrp Jensen Haarup det.” <Photo examined >.

Other material examined. BRAZIL, Pará, Belém , ♀, 14.III.1929, Bonifácio leg. ( UFRG); ♂, I.1997, FCAP ( UFRG); ♀, I.1997, FCAP ( UFRG) . Rio de Janeiro, Guaratiba , ♀, 20.I.1957, A. Silva leg. ( MNRJ) . Santa Catarina, Florianópolis , ♀, M[orro] das Pedras, 19.I.1957, Collection Pe. Buck leg. ( MGAP) . Rio Grande do Sul, Eldorado do Sul, ♀, Fazenda Minuano , 16.VIII.1989, U. Aner leg. ( UFRG) <illustrated specimen>; ♂, Fazenda Minuano , VIII.1990, U. Aner leg. ( UFRG) <illustrated specimen>; Triunfo, ♀, Copesul , 25.V.1990, L. Moura leg. ( MCNZ) < new record>; Pelotas , ♂, 10.X.1967, Foster leg. ( UFRG) ; ♀, 25.X.1975, Wilges leg. ( UFRG) ; Cachoeirinha , ♀, IRGA, 17.VII.1985, Albuquerque leg. ( UFRG) ; ♀, 17.VII.1986, Albuquerque leg. ( UFRG) . No data: 2♀ ( UFRG) .

Diagnosis. Mandibular plates as long as clypeus. Proportions of antennomeres: 1 ≈ 2> 3> 4 <5 ( Fig. 74–75 ). Posterior margins of bucculae reaching base of head. Labium short, ending between pro- and mesocoxae ( Fig. 75 ). Proportions of labiomeres: 1 <2> 3> 4. Each peritreme of ESES reaching about 1/3 of the distance to lateral margin of evaporatorium. Median furrow of the peritreme short, reaching less than half of peritreme. Evaporatorium on mesopleuron reaching less than half of the segment. Gyrification of evaporatorium with low wrinkles. Metathoracic spiracle narrow ( Fig. 76 ). Hemelytra surpassing the abdominal apex ( Figs 56 , 73 ). Connexivum exposed, angles concolour with dorsal color ( Fig. 73 ). Circular spiracles, spiracle of abdominal sternite 2 covered by metathorax. Mesial area adjacent to spiracles without callosity.

Measurements. See Table 1 .

Male genitalia. Posterolateral angles of pygophore quadrate ( Figs 27–29 ). Genital cup occupying less than half of pygophore length. Extension of dorsal rim obsolete ( Fig. 27 ). Layers of ventral rim not separated by a carina; area between layers excavated ( Fig. 28 ). Inferior layer of ventral rim without processes ( Fig. 29 ). Phallus ( Figs 77–79 ): Dorsal connectives short, reaching the middle of phallotheca. Processus capitati longer, reaching phallotheca distal margin. Dorsal processes of phallotheca medially narrow, longer than posterodorsal projections.

Female genitalia. Valvifers 8 flat, posterior margins straight. Valvifers 9 flat, with anterior margins concave and posterior margins straight; sclerotized lateral arms attaining anterior margins of laterotergites 9 ( Fig. 80 ). Proximal ductus receptaculi convoluted, extremely long, at least three times longer than vesicular area. Distal ductus receptaculi convoluted, long, at least one time longer than vesicular area. Annular flanges divergent related to each other. Capsula seminalis globose ( Figs 52 , 81–82 ).

Distribution. Brazil (Pará, Rio de Janeiro, São Paulo, Santa Catarina, and Rio Grande do Sul); Uruguay (Montevideo); Argentina (Santa Fé, and Entre Rios) ( Fig. 111 ).

Remarks. This species is reported in the literature in association with rice ( Oriza sativa L.) ( Krinski et al. 2015; Barros et al. 2021).

Figures

FIGURE 111. Occurrence records of the species of Hypatropis.

FIGURES 1–12. Head and pronotum. 1–4: dorsal view; 5–8: detail of anterior angles of pronotum; 9–12: lateral view. 1, 5: Hypatropis inermis; 9: Hypatropis australis; 2, 6, 10: Amauromelpia ussu; 3, 7, 11: Luridocimex wygodzinskyi; 4, 8, 12: Stysiana acarinatis. Abbreviations: aap, anterior angle of pronotum. Scale bars = 0.5 mm.

FIGURES 13–20. Head and pronotum in ventral view and habitus lateral. 13: Hypatropis inermis; 14: Hypatropis rolstoni; 15–16: Amauromelpia ussu; 17–18: Luridocimex wygodzinskyi; 19–20: Stysiana pardidens. Scale bars = 0.5 mm.

FIGURES 27–38. Male genitalia. Pygophore in dorsal, posterior and ventral view, respectively. 27–29: Hypatropis inermis; 30–32: Amauromelpia ussu; 33–35: Luridocimex wygodzinskyi: 36-38: Stysiana pardidens. Abbreviations: dr, dorsal rim; ilvr, inferior layer of ventral rim; slvr, superior layer of ventral rim; spp, superior process of pygophore; vr, ventral rim. Scale bars = 0.5 mm.

FIGURES 52–54. Female receptaculum seminis and aussenwand. 52, Hypatropis inermis; 53, Amauromelpia ussu; 54, Stysiana meridionalis. Abbreviations: aaf, anterior annular flange; cs, capsula seminalis; ddr, distal ductus receptaculi; paf, posterior annular flange; pdr, proximal ductus receptaculi; pi, pars intermedialis; la9, laterotergites 9; rs, ring sclerite; tvi, thickening of vaginal intima; va, vesicular area; va9, valvulae 9; vf9, valvifers 9; X, abdominal segment X. Scale bars = 52, 54: 0.5 mm; 53, 1.0 mm.

FIGURES 55–59. Hypatropis Bergroth, 1891. Holotype, habitus dorsal. 55: H. australis; 56: H. inermis; 57: H. rolstoni; 58: H. similis; 59: H. sternalis. Scale bars = 1.0 mm.

FIGURES 73–82. Hypatropis inermis (Stål, 1872). 73–74: Habitus dorsal and ventral. 75: Head and thorax lateral; 76: Thoracic external scent efferent system; 77–79: Phallus in dorsal, lateral and ventral view; 80: Genital plates in posteroventral view; 81–82: Female receptaculum seminis and aussenwand. Abbreviations: bc, bucculae; ddr, distal ductus receptaculi; st, secondary thickenings of valvulae 9; ev: evaporatorium; va, vesicular area. Scale bars = 73–74: 1.0 mm; 75, 80–82: 0.5 mm; 76: 500 µm; 77–79: 0.25 mm.