Euschistus (Lycipta) triangulator (Herrich-Schäffer, 1842)

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 : 453-454

Euschistus (Lycipta) triangulator (Herrich-Schäffer, 1842)

( Figs 63–64 )

Cimex triangulator Herrich-Schäffer, 1842: 95–96 .

Euschistus triangulator: Stål, 1860: 19 .

Lycipta triangulator: Stål, 1862: 58 .

Euschistus (Lycipta) triangulator: Stål, 1872b: 23 ; Rolston, 1982: 290–291; Weiler et al. 2011: 59, 60, 64.

Material studied. Maquiné : 1♀, 01.IV.2006, V. C. Matesco leg. ( UFRG) ; 1♂, 12.X.2005, M. O. Marchiori leg. ( UFRG) . São Francisco de Paula : 1♂, 18.III.2007, C. F. Schwertner leg. ( UFRG) .

Diagnostic features. Body dorsal and ventral surfaces castaneous to reddish castaneous, antennae reddish. Mandibular plates subequal to clypeus, rounded apically.Anterolateral margins of pronotum concave and with spaced denticles ( Fig. 63 ). Internal angles of cicatrices of pronotum dark. Humeral angles reddish castaneous, strongly developed, acute apically and directed laterally ( Fig. 63 ). Pronotum with callous transumeral band. Pronotum and scutellum with multiple concolorous impunctate callosities. Apex of scutellum with inconspicuous callosity ( Fig. 63 ). Legs pale with dark castaneous spots. Apex of radial vein with pale yellow callosity. Veins of the membranous portion of hemelytra reticulate. Body length: 9.50–10.50 mm ( Garbelotto & Campos 2014).

Recorded host plants. Canola (Marsaro Jr. et al. 2017; Bianchi et al. 2019).

Distribution in Rio Grande do Sul. Maquiné, Passo Fundo and São Francisco de Paula ( Fig. 64 ).

Figures

FIGURES 63–64. Euschistus (Lycipta) triangulator. 63: Dorsal view, scale bar = 1.0 mm. 64: Distribution within Rio Grande do Sul.