Acrosternum (Chinavia) aseadum Rolston, 1983: 132–133, figs. 82–86.

Coloration. Predominantly green. Lateral margins of juga and pronotum black, followed by an orange band. Connexivum yellow and urosternite orange, with absence of black macula. Head. Margins of juga with slight concavity in front of eyes, apex of head broadened and semicircular. Proportion of antennal segments: I<II<III≈IV≈V. Rostrum reaches metacoxae. Proportion of rostral segments: I<II>III>IV. Thorax. Humeral angle obtuse. Anterolateral margins of pronotum with a submarginal dorsal depression. Hemelytra with costal angles slightly obtuse. Membranal suture convex. Abdomen. Medial spine of the third urosternite doesn’t reache metacoxae. Spiracles black surrounded by a yellow callus.

Distribution. Argentina (CD, MIS), Brazil (PA, MT, DF, PR, RS*).

Families of plants as possible hosts. Asteraceae (Link & Grazia 1987; Schwertner & Grazia 2007), Brassicacea (Link & Grazia 1987; Schwertner & Grazia 2007), Fabaceae (Link & Grazia 1987; Carvalho et al., 1995; Schwertner & Grazia 2007), Linaceae (Link & Grazia 1987; Schwertner & Grazia 2007), Rutaceae (Schwertner & Grazia 2007) .

Material examined. Holotype. Passo Fundo, RS (Brazil), 14.I.1974, E. Heinrichs (m#, NMNH); Additional material. FAL, Brasília-DF, Brasil, 20.III.1986, col Henrique (1m#, UNB); Ponta Grossa, PR, soja, Abril.1975 (6m#, 9f#, DZRS); E. Ecol. Aracuri, Esmeralda, RS, Brasil, 18-19.III.1981, J. Grazia (1m#, DZRS); Cruz Alta, RS, 14.X.1981, Link and Costa, em linho (2m#, 2f#, DZRS); Same, but date 19.X.1981, em colza (1f#, DZRS); Santa Maria, RS (Brazil), XII.1981, D. Link, feijoeiro (2m#, 2f#, DZRS); St. Maria, RS (Brazil), 03.VI.1982, J.A. Udeika (1m#, DZRS); Santa Maria, X.1984, D. Link, em girassol (1f#, DZRS); Same, but in tremoço branco (1m#, DZRS); Same, but date 20.III.1978, em angiquinho (2m#, DZRS); Sta. Maria, RS (Brazil), 25.X.1984, Equipe DFS, tremoço azul (1m#, DZRS); E.E. Guaíba (Rio Grande do Sul–Brazil), II.25.1974, RS, E. Heinrichs (1m#, DZRS); S. Sepé, RS (Brazil), 13.XII.1981, E.C. Costa, feijoeiro (1f#, DZRS); São Sepé, RS (Brazil), 28.XII.1981, Costa and Link, feijoeiro (1m#, DZRS); Pelotas, RS (Brazil) (1m#, DZRS).

*Some registers in Rio Grande do Sul: Bunde et al. 2010, Matesco et al. 2014