Thoreyella trinotata Berg, 1878

Bernardes, Jorge Luiz Cabeleira, Schwertner, Cristiano Feldens & Grazia, Jocélia, 2011, Review of Thoreyella Spinola with the description of two new species from Brazil (Heteroptera, Pentatomidae), Revista Brasileira de Entomologia 55 (3), pp. 299-312 : 310-312

Thoreyella trinotata Berg, 1878

( Figs. 7 , 18 , 23 , 28 , 33 , 46–49 , 59–61 , 67 , 71 , Table I )

Thoreyella trinotata Berg, 1878: 27 (descr.); Berg 1879: 58 (citation); Berg 1883: 214; Berg 1884: 30 (reprint); Kirkaldy 1909: 137 (cat.); Rolston 1984: 832–833 (descr.); Rider 1994: 218 (citation); Coscarón & Grazia 1996: 109 (cat.); Grazia & Schwertner 2008: 234 (list); Bernardes et al. 2009: 3, 4, 7, 8, 10–12, 14, 15, 18, 20–22 (classification, distr., fig.).

Diagnosis. Juga inconspicuously sinuous, lateral margins outlined in black. Head flat, with greenish- to light-brown punctures. Pair of black stripes extending from base of eyes through antenniferous tubercles reaching half of juga. Propleurum with black line. Spiracles not placed on calli. Posterior margins of the ventral rim processes of pygophore sulcate, inferior margin of sulcus more pronounced than the superior. Posterior margin of urosternite VII in females, trapezoidal; laterotergites 8 entirely flat.

Redescription. General color greenish- to light-brown on head and body. Juga with lateral margins outlined in black. Pair of black stripes extending from the base of eyes through antenniferous tubercles reaching half of juga. Pronotum punctures concolorous with body surface. Humeral angles spines with black line on posterolateral angles. Scutellum with black dot at apex of clavus; sometimes the apex of scutellum is outlined in black. Dark stripe on posterior margin of corium is present in some specimens. Propleurum with black line. Mesopleurum immaculate. Posterolateral angles of urosternites immaculate. Spiracles concolorous with body surface.

Elongate ( Fig. 7 ). Head subtriangular, frons and vertex flat. Margins of juga almost rectilinear before the eyes. Dorsal surface of tylus compressed, at the same level of juga. Anterior tooth of buccula obtuse, discrete. Lateral spine of antenniferous tubercle rounded. Antennal segments: I<II>III<IV<V. Humeral angles with spines varying from small to well developed, directed laterad. Scutellum triangular, longer than wide, reaching apices of corium; median longitudinal calloused line covering at least anterior 2/3 of scutellum. Frenum reaching basal third of scutellum. Sutural margins of corium well defined. Ostiolar ruga not differentiated, attached to the tegument of metapleurum. Spines at apices of femur short, three times shorter than the width of femur, with an angle larger than 45°. Fore tibia dorsally flat. Spiracles not placed on calli. Posterior margin of segment VII, in females, trapezoidal.

Male genitalia ( Figs. 7 , 18, 23, 28, 33, 46–49, 59–61). Ventral rim processes of pygophore robust, sutural margins parallel. Posterior margins of the ventral rim processes sulcate, inferior margin of sulcus more pronounced than the superior. Concavity at posterolateral angles of pygophore shallow. Parameres trilobate. Basal portion of parameres flat, wider than the apical portion. Vesica long, hook-like ( Fig. 59 ) surpassing conjunctiva and reaching ventral surface of phallotheca ( Fig. 61 ). Phallotheca opening posteriorly. Secondary gonopore opening posteriorly.

Female genitalia ( Figs. 67 , 71 ). Laterotergites 8 entirely flat. Gonocoxites 8 triangular, with moderate cusp; posterior margins sinuous, depressed, and translucid, shallowly concave adjacent the cusp, remaining surface convex; sutural margins rectilinear. Laterotergites 9 with lateral half strongly convex, median half oblique. Gonapophyses 8 with surface flat with a median crest; posterior margin convex medially. Capsula seminalis process long and tapered, occupying 4/5 of its length. Capsula seminalis three times larger than pars intermedialis ( Fig. 71 , pi); posterior annular flange smaller than anterior annular flange.

Distribution: BRAZIL [new record]: Rio Grande do Sul; PARAGUAY [ Rolston (1984)]; URUGUAY; ARGENTINA: Missiones, Formosa, Santa Fé, and Buenos Aires.

Material examined. Holotype male, with the labels: a) typus, b) Buenos Aires, c) 1411, d) MLPA e) Lectotype Thoreyella trinotata Berg. Paratypes. ARGENTINA. Buenos Aires, no data, Typus, Baradero, F. Lynch col., n° 1411 , 1 female ( MLPA) ; Buenos Aires, no data, Typus, n° 1411 , 2 females ( MLPA) . BRAZIL. Rio Grande do Sul: Rio Grande, Est. Ecol. Taim , 11.III.1982, J. Grazia col., 2 males, 1 female ( UFRG) ; idem, 13.III.1982, 1 female ( UFRG) ; idem, 14.III.1982, 2 males, 3 females ( UFRG) ; idem, 15.III.1982, 1 female ( UFRG) ; idem, 16.III.1982, 3 males, 2 females ( UFRG) ; idem, 18.III.1982, 2 males, 1 female ( UFRG) ; idem, 30.III.1982, 1 male ( UFRG) . URUGUAY. Banda Oriental, “cum typo comparat”, no data, 2 females ( MLPA) . ARGENTINA. Misiones: Leandro N. Alem , XI.1956, A. Martinez col., 1 female ( UFRG) ; Formosa: La Florência Este, 1–6.XII.1949, Momros col., Ins. M. Lillo, 1 male ( UFRG) ; Santa Fé: Rosário , no data, 1 female ( MACN) ; Buenos Aires: Tigre , no data, 1 female ( MACN) ; Veronica FCS, no data, J.B.Daguerra col., 1 male, 1 female ( MACN) ; no data, 6.X.1896, n° 5653 , S. Venturi col., 1 female ( MACN) ; idem, 15.X.1896, 1 male ( MACN) ; idem, 19.X.1896, 1 male ( MACN) ; Buenos Aires, “cum typo comparat”, Günther col., N° 11949 , 1 female ( MACN) ; Buenos Aires Ciudad , 27.II.1912, Bosq, 1 male ( MLPA) ; Belgrano, 7.II.1917, Bosq 1942, 1 female ( MLPA) .

Comments. Lateral margins of juga outlined in black is shared with T. maracaja sp. nov. Humeral angles spines varies in length, from small to well developed, acute and directed laterad. The scutellum is thinner than in the remaining species. Specimens recently collected have a pale, translucid green color.

Figures

Figs. 2–7. Thoreyella species: 2, T. paraiba sp. nov.; 3, T. cornuta; 4, T. taurus; 5, T. maracaja sp. nov.; 6, T. brasiliensis; 7, T. trinotata. (Scale = 5 mm).

Figs. 14–18. Pygophore, dorsal view: 14, Thoreyella paraiba sp. nov.; 15, T. cornuta; 16, T. maracaja sp. nov.; 17, T. brasiliensis; 18, T. trinotata; dr, dorsal rim; dw, dorsal wall; par, paramere; pla, postero-lateral angle; spgc, superior process of genital cup; vrp, ventral rim process; X, tenth segment. Scale = 1 mm.

Figs.19–23. Pygophore, ventralview:19, Thoreyella paraiba sp. nov.; 20, T. cornuta; 21, T. maracaja sp. nov.; 22, T. brasiliensis; 23, T. trinotata. vr, ventral rim; ivr, infolding of ventral rim; vw, ventral wall. Scale = 1 mm.

Figs. 24–33. Pygophore. 24–28. Posterior view: 24, Thoreyella paraiba sp. nov.; 25, T. cornuta; 26, T. maracaja sp. nov.; 27, T. brasiliensis; 28, T. trinotata; 29–33. Lateral view: 29, Thoreyella paraiba sp. nov.; 30, T. cornuta; 31, T. maracaja sp. nov.; 32, T. brasiliensis; 33, T. trinotata; (dr = dorsalrim; vr = ventral rim; vrp = ventral rim process; X = tenth segment) (Scale = 1 mm).

Figs. 34–49. Parameres, lateral, medial, dorsal, and ventral views. 34–37, Thoreyella cornuta; 38–41, T. maracaja sp. nov.; 42–45, T. brasiliensis; 46–49, T. trinotata. ap, apical portion; bp, basal portion. Scale = 0.5 mm.

Figs. 50–61. Phallus, lateral, dorsal and ventral views. 50–52, Thoreyella cornuta; 53–55, T. maracaja sp. nov.; 56–58, T. brasiliensis; 59–61, T. trinotata. c, conjunctiva; ph, phallotheca; pp, processus phallothecae; sg, secondary gonopore; v, vesica. Scale = 0.5 mm.

Figs. 62–67. Female genital plates, ventral view. 62, Thoreyella paraiba sp. nov; 63, T. cornuta; 64, T. taurus; 65, T. maracaja sp. nov.; 66, T. brasiliensis; 67, T. trinotata. gc8, gonocoxites 8; g8, gonapophyses 8; la8, laterotergites 8; la9, laterotergites 9; s, spiracle; VII, seventh abdominal segment; X, tenth segment. Scale = 1 mm.

Figs. 68–71. Ectodermal ducts and laterotergites, gonocoxites and gonapophyses of the female ninth segment. 68, Thoreyella cornuta; 69, T. maracaja sp. nov.; 70, T. brasiliensis; 71, T. trinotata. aaf, anterior annular flange; apva, anterior portion of vesicular area; cons, constriction; cs, capsula seminalis; csp, capsula seminalis process; dr, ductus receptaculi; la8, laterotergite 8; la9, laterotergite 9; paf, posteriorannular flange; pi, pars intermedialis; va, vesicular area of ductus seminis. Scale = 1 mm.