Oenopiella unidentata ( Spinola, 1852 )

Fernández-Aldea, A. F., Barão, K. R., Grazia, J. & Ferrari, A., 2014, An Integrative Approach to the Taxonomy of Oenopiella Bergroth (Hemiptera: Heteroptera: Pentatomidae: Pentatominae: Carpocorini) with the Description of Two New Species from Argentina and Southern Brazil, Annals of the Entomological Society of America 107 (2), pp. 364-381 : 375-376

Oenopiella unidentata ( Spinola, 1852)

( Figs. 1 and 30 , 35 - 37 , 47 , 51-53 , 63 , 69-71 , 73 ; Table 1 )

Pentatoma unidentatum Spinola, 1852: 134 ; Gay, 1854: 114 (fig.); Signoret, 1863: 546 (redescription); Grazia and Campos, 2010: 421 (Lectotype desig.).

Oenopia unidentata ; Stål, 1867: 529 (new comb.); Berg, 1879: 48 (redescription); Montandon, 1895: 4 (list, distrib.); Reed, 1898: 27 (redescription).

Oenopiella unidentata ; Berg, 1900: 83; Kirkaldy, 1909: 91 (cat.); Pennington, 1920: 8 (list); Prado, 1991: 15 (list); Prado, 2008: 52 (list); Grazia and Schwertner, 2008: 234 (list); Vergara and Jerez, 2010: 83 (list, host plant); Grazia and Campos, 2010: 421.

Type Material. Lectotype male deposited at Museo Regionale de Scienze Naturali ( MRSN), Torino, Italy, examined .

Description. Small to medium size ( Table 1 ). Color pale orange to reddish ferrugineous ( Fig. 1 ); antennal segments I-III orange, IV-V ferrugineous; legs predominantlyorange. Denserpuncturesonmedianthird of abdomen, less dense on lateral thirds and on dorsal surface of body. Clypeus slightly shorter than mandibular plates ( Fig. 30 ). Bucculae subtruncate posteriorly. Antennae almost half as long as body. Antennal segment Inot attaining apex of mandibular plates; segment V twice the length of segment IV. Proportion of antennal segments: I <II <III ≈ IV <V. Anterior angles of pronotum with small obtuse projection. Anterolateral marginsof pronotumslightly convex, emarginated. Apex of scutellum spatulate attaining at least the level of the posterior half of connexivum of segment V, sometimes the anterior half of segment VI; disc of scutellum elevated.

Male Genitalia. Pygophore subquadrangular ( Fig. 37 ); dorsal rim sinuous shallowly concave over segment X ( Figs. 36 and 47 ); ventral rim excavated in a shallow “V” ( Fig. 51 ); inferior layer of ventral rim projecting ventrally in a small tubercle well visible in posterior view ( Figs. 36 and 47,51-52); posterolateral angles almost quadrate ( Fig. 52 ); ventral wall of pygophore with shallow depression on either side of central convexity (larger than in O. punctaria ) attaining posterior margins of pygophore ( Fig. 37 ); posterior third of segment X with 1 + 1 slightly elevated rounded areas ( Fig. 36 ).

FemaleGenitalia. ( Fig. 63 ). Gonocoxite 8: posterior margin sinuous; sutural angles projecting posteriorly, less so than in O. punctaria , partially covering gonocoxite 9; sutural margins overlapping at basal third and apical two-thirds parallel. Posterior margin of laterotergite 8 uniformly convex; laterotergite 9 enlarged at base, tapering toward apex, not surpassing the band unitingthelaterotergite 8 dorsally.

Distribution. O. unidentata occurs in the following Andean Region provinces ( Fig. 69 ): Coquimbo and Santiago (Central Chilean subregion), Maule and Valdivian Forest (Subantarctic subregion).

Material Examined. CHILE: Atacama: 1 ♂, Copiapó, 22-VI-55, L. E. Pena, AMNH . Valparaiso: 1 ♂, Concon, 13-III- 64, AMNH ; 14 ♂, 1 ♀, El Convento, San Antonio , 4 -XII-64, L. E. Pena, AMNH . Santiago: 2 ♂, Apoquindo , VI-53, L. E. Pena, AMNH ; 1 ♂, 3 ♀, Apoquindo , VII-54, L. E. Pena, AMNH ; 1 ♂, Curacavi, 16-III-84, MNNC ; 1 ♀, LA Rinconada, 19-I-56, R. H. González, UFRG ; 1 ♀, Maipu, 2-V-61, AMNH ; 1 ♀, Maipu, 14-XI-64, A. Garcia, UFRG ; 1 ♂, Renca , VI- 1989, UFRG ; 1 ♀, Santiago, VI-1941, Mendes , UFRG . Libertador General Bernardo O'Higgins: 1 ♀, Santa Elena , 8 -XII-70, S. Fernández col., MNNC. Araucania: 1 ♀, Curacautin , 17-XII-50, Pena col., AMNH . Biobio: 1 ♂, Quebrada Pinares, Concepción , 4-II- 67, T. Cekalovic, MZSP ; 8 ♂, 6 ♀, Róo Chirihuillin , 9 -II- 65, T. Cekalovic, MZSP . Los Lagos: 1 ♂, 1 ♀, Dalcahue II-61, L. E. Pena, AMNH ; 1 ♀, Puerto Montt, 11-12- XII- 81, R. T. Schuh, AMNH ; Unknown Province: 3 ♂, 4 ♀, Valdivia, 12-IV- 85, E. Krahmer, MNNC ; 1 ♀, no data, UFRG .

Comments. O. unidentata shareswith O. pallidula theclypeus shorter thanthe mandibular platesand the small obtuse projection at the anterior angles of thepronotum; with O. punctaria and O. pallidula the slightly convex anterolateralmargins of thepronotum; and with O. flonensis the elevated disc of the scutellum. The laterotergite 9 not surpassing the band uniting the laterotergite 8 dorsally in females and the posterolateral angles of the pygophore almost quadrate in males are unique characters that distinguish O. unidentata from all the other species.

Figures

Figs. 1-5. Dorsal view of species of Oenopiella. (1) O. unidentata. (2) O. punctaria. (3) O. pallidula. (4) O. flonensis, holotype. (5) O. ventanensis, holotype. Scale bars = 1 mm. (Online figure in color.)

Figs. 30-34. Head of Oenopiella species, in dorsal view. (30) O. unidentata. (31) O. punctaria. (32) O. pallidula. (33) O. flonensis, holotype. (34) O. ventanensis, holotype. c, clypeus; mp, mandibular plates. Scale bars = 1 mm. (Online figure in color.)

Figs. 35-46. Pygophores of Oenopiella species. (35-37) O. unidentata, in (35) dorsal, (36) posterior, and (37) ventral views.(38-40) O.punctaria, in (38) dorsal,(39) posterior, and (40) ventral views.(41-43) O.flonensis, holotype, in (41)dorsal, (42) posterior, and (43) ventral views. (44-46) O. ventanensis, holotype, in (44) dorsal, (45) posterior,and (46) ventral views. Scale bars = 1 mm. (Online figure in color.)

Figs. 47-50. Line drawings of Oenopiella species' pygophores in posterior view. (47) O. unidentata. (48) O. punctaria. (49) O. flonensis, holotype.(50) O.ventanensis, holotype.pa, paramere;vr,ventral rim of pygophore;X,tenthabdominalsegment.Scale bars = 1 mm.

Figs. 51-56. Dissected pygophores of Oenopiella species. (51-53) O. unidentata in (51) posterior, (52) dorsal, and (53) ventral views. (54-56) O. punctaria in (54) posterior, (55) dorsal, and (56) ventral views. Scale bars = 1 mm. (Online figure in color.)

Figs. 63-66. External and internal female genitalia of Oenopiella species. (63) O. unidentata. (64) O. punctaria. (65) O. pallidula. (66) Internal genitalia of O. punctaria. aaf, anterior annular flange;ch, chitinellipsen; cs, capsula seminalis; dr, ductus receptaculi; g9, gonapophysis 9; gc8, gonocoxite 8; gc9, gonocoxite 9; la8, laterotergite 8; la9, laterotergite 9; or, orificium receptaculli; paf, posterior annular flange; pi, pars intermedialis; sp, spiracle; tvi, thickening of vaginal intima; va, vesicular area; X, tenth segment. Scale bars = 1 mm.

Figs. 69-73. Distribution map of the Oenopiella spp. (69) Distribution of Oenopiella on the biogeographical provinces proposed by Morrone (2006) and their respective provinces. (70) Distribution of O. punctaria and O. unidentata. (71) Area of sympatry highlighted by a black square on Fig. 70. (72-73) Relief profile of (72) O. punctaria and (73) O. unidentata along the species' distribution path. (Online figure in color.)