Chinavia obstinata ( Stål, 1860 )

Barros, Lurdiana D., Paim, Marcelo R., Krein, Verônica, Carabajal, Victor, Brandão, Marcela N., Bernardes, Paula De O. & Lindner, Mariana F., 2021, Illustrated guide to Pentatominae (Hemiptera: Pentatomidae) species associated with the four main grain crops in Rio Grande do Sul state, Brazil, Zootaxa 4958 (1), pp. 430-478 : 447

Chinavia obstinata ( Stål, 1860)

( Figs 44–46 )

Rhaphigaster obstinatus Stål, 1860: 23 ; Walker, 1867: 360.

Acrosternum (Chinavia) panizzii Frey-da-Silva & Grazia, 2001: 113 , 115–117 (Syn. by Schwertner & Grazia, 2007).

Acrosternum obstinatum: Matesco et al. 2003: 82–88 .

Chinavia obstinata: Schwertner & Grazia, 2006: 243 ; 2007: 430–431; Genevcius et al. 2012: 26–27 ; Campos et al. 2012, figs 2–3; Fürstenau et al. 2013: 74–78 (key); Bianchi et al. 2019; Servino & Schwertner, 2020 (electronic key).

Material studied. Pelotas : 1♂, 1♀, 20.III.2001, L. M. Vivian leg. ( UFRG) . Porto Alegre : 1♂, II.1995, J. A. M. Fernandes leg. ( UFRG) . Rio Grande : 1♂, Estação Ecológica do Taim, 17.III.1982, J. Grazia leg. ( UFRG) .

Diagnostic features. Body oval, light to dark green. Cicatrices of pronotum, basal angles of scutellum and connexivum immaculate ( Fig. 44 ), but the latter may bear black spots at the posterolateral angles. Abdominal spine surpassing mesocoxae ( Fig. 45 , red arrow). Spiracles pale or dark. Body length: 11.00–15.00 mm ( Schwertner & Grazia 2007; Campos et al. 2012; Garbelotto & Campos 2014).

Recorded host plants. Canola (Marsaro Jr. et al. 2017; Bianchi et al. 2019) and soybean ( Garbelotto & Campos 2014).

Distribution in Rio Grande do Sul. Estrela, Pelotas, Porto Alegre, Passo Fundo, Rio Grande and Viamão ( Fig. 46 ).

Figures

FIGURES 44–46. Chinavia obstinata. 44: Dorsal view, scale bar = 1.0 mm. 45: Ventral view, abdominal spine (red arrow). 49: Distribution within Rio Grande do Sul.