Mormidea v-luteum ( Lichtenstein, 1796 ), 1843

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 : 461

Mormidea v-luteum ( Lichtenstein, 1796)

( Figs 88–91 )

Cimex V-luteum Lichtenstein, 1796: 106 .

Mormidea (Mormidea) croceipes: Berg, 1878: 299 .

Mormidea (Mormidea) spegazinii Berg, 1883: 204 ; Kirkaldy, 1909, 61; Pennington, 1920: 8.

Mormidea (Mormidea) v -luteum: Kirkaldy, 1909: 59; Pennington, 1920: 8; Rolston, 1978: 208.

Material studied. Guaíba : 1♂, 22.X.1985, M. C. Del Vecchio leg. ( UFRG) . Júlio de Castilhos : 1♀, 14.X.1981, Tremoço, J. Grazia det. 1986 ( UFRG) ; 1♀, 19.XI.1981, Link & Costa leg., Tremoço, J. Grazia det. 1986 ( UFRG) . Santa Maria : 1♀, 04.II.1986, D. Link leg., J. Grazia det. 1986 ( UFRG) . Rio Grande : 1♀, Estação Ecológica do Taim, 17.III.1982, J. Grazia leg., J. Grazia det. 19?? ( UFRG) .

Diagnostic features. Body dorsal surface black, with pale yellow spots next to cicatrices of pronotum ( Fig. 88 ); ventral surface yellow. Anterolateral margins of pronotum concave. Humeral angles with variable development, from a small round projection ( Fig. 90 ) to an acute spine ( Fig. 89 ). Basal angles, basal half of lateral margins and apex of scutellum, and apex of radial vein of corium with a pale yellow callosity each ( Fig. 88 ). Connexivum of variable color, from pale green to orange. Body length: 7.50– 8.50 mm ( Garbelotto & Campos 2014).

Recorded host plants. Canola ( Bianchi et al. 2019), rice ( Grazia 1977; Martins et al. 1986; Link & Grazia 1987), soybean ( Costa & Link 1974; Lopes et al. 1974) and wheat ( Lopes et al. 1974).

Distribution in Rio Grande do Sul. Guaíba, Júlio de Castilhos, Passo Fundo, Pelotas, Rio Grande, Santa Maria, São Francisco de Paula, São Sepé and Viamão ( Fig. 91 ).

Figures

FIGURES 88–91. Mormidea v-luteum. 88: Dorsal view, scale bar = 1.0 mm. 89–90: Head and pronotum, showing variation in the development of humeral angles. 91: Distribution within Rio Grande do Sul.