Oenopiella pallidula (Stål, 1872)

(Figs. 3 and 32, 65, 68, 69; Table 1)

Oenopia pallidula Stål, 1872: 31; Berg, 1879: 49 (redescription); Berg, 1891: 286 (redescription).

Oenopiella pallidula; Kirkaldy, 1909: 91 (cat.); Pennington, 1920: 8 (cat.); Ruffinelli and Pirán, 1959: 17

(cat.); Grazia and Schwertner, 2008: 234 (cat.).

Type Material. Holotype female deposited at Naturhistoriska Riksmuseet, Stockholm, Sweden (NHRS), examined .

Description. Small to medium size (Table 1). Color pale orange (Fig. 3); antennal segments I-III orange, IV ferrugineous, V missing; legspredominantly orange. Urosternite VII with a median dark stripe attaining gonocoxite 8. Dorsal and ventral surfaces with scattered punctures. Clypeus slightly shorter than mandibular plates (Fig. 32). Antennal segment Inot attaining the apex of mandibular plates. Proportion of antennal segments: I <II <III <IV. Bucculaeslightly lobate posteriorly. Rostrum attaining metacoxae. Anteriorangles of pronotum with smallobtuse projection (Fig. 3). Anterolateral margins of pronotum slightly convex, not clearly emarginated as in the preceding species. Scutellum spatulate at apex, attaining level of anterior half of connexivum of segment V; discof scutellum not elevated (Fig. 3).

Female Genitalia (Fig. 65). Posterior margins of gonocoxite 8 convex, sutural angles inconspicuously elevated, not projecting posteriorly, and not covering gonocoxite 9. Sutural margins of gonocoxite 8 overlapping at basal one-fourth, parallel at apical threefourths. Posterior margins of laterotergite 8 produced in atriangular projection; laterotergite 9 inflated, apex narrowly rounded, subequal in length to laterotergite 8, conspicuously surpassing the band uniting the laterotergite 8 dorsally.

Distribution. Neotropical Region province (Fig. 69): Pampa (Chacoan subregion). Stål (1872) referred to a female collected in “Buenos Ayres.” The specimens here examined were collected in Uruguay, one female putatively in Punta del Leste, the other two females in Piedra de los Indios, Colonia.

Material Examined. URUGUAY: Maldonado: 1 ♀, Punta del Leste, 4 -XII-60, UFRG; Colonia: 2 ♀, Piedra de los Indios, ca Ruta 21, km 184.5, 19-XI-2006 and 30-XI-2012, G.J. Wibmer, EGER .

Comments. O. pallidula shareswith O. unidentata theclypeus shorter thanthe mandibular platesand the small obtuse projection at the anterior angles of thepronotum; with O. unidentata and O. punctaria the slightly convex anterolateralmargins of thepronotum; with O. punctaria the disc of the scutellum not elevated; and with O. unidentata, O. flonensis, and O. ventanensis the spatulate apexof the scutellum. Laterotergite 9 inflated, narrowly rounded at apex, conspicuously surpassing the band uniting the laterotergite 8 dorsally, and gonocoxite 9 sub-diamondshaped, fully visible, not covered by gonocoxite 8 are unique characters of O. pallidula .