Thoreyella maracaja, Jorge Luiz Cabeleira Bernardes & Jocélia Grazia, 2011

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 : 307-308

Thoreyella maracaja sp. nov.

( Figs. 5 , 13 , 16 , 21 , 26 , 31 , 38–41 , 53–55 , 65 , 69 , Table I )

Thoreyella sp. nov. 1 in Bernardes et al., 2009: 2–4, 7, 9, 11–22 .

Etymology. Allusive to the type-locality.

Diagnosis. Head triangular; lateral margins of juga outlined with black ( Fig. 13 ). Humeral angles robust anteroventrally directed.Abdominal spine surpassing mesocoxae ( Fig. 11 ). Spiracles placed on calli. Trichobothria tubercles black. Posterior margin of pygophore ventral rim processes with 1+1 submarginal tooth not visible in posterior view of the pygophore ( Fig. 26 ). Gonocoxites 8 reduced obovate, sutural and posterior borders convex, with a low cusp. Laterotergites 8 entirely concave.

Description. General color green, legs and antenna yellowish-brown. Punctures concolorous with the head. Lateral margins of juga outlined in black ( Fig.13 ). Antenniferous tubercles with a longitudinal black line. Propleurum with two black macula. Humeral angles blackish by the presence of black punctures which are also present on posterior half of pronotum. Sternum concolorous with the body surface. Abdomen ventrally without macula, slightly darker along lateral margins. Abdominal spine dark on females. Spiracles calli white; bothrium black.

Ovate. Head with frons and vertex flat. Median margins of juga parallel along apical third, divergent before tylus. Buccula rectangular, apical tooth rounded. Antennal segments: I<II<III<IV<V. Humeral angles with robust spines obliquely directed anteroventrally. Pronotum cicatrices well marked on posterior line; anterolateral margins concave smooth. Anterolateral pronotal spines short acute. Scutellum subtriangular (proportion 1:1) attaining abdominal segment VI ( Fig. 5 ). Corium also attaining abdominal segment VI. Ostiolar ruga slightly curved anteriorly occupying half of metapleura. Evaporative area as long as ostiolar ruga and almost the same width. Mesopleural evaporative area occupying ¾ the ostiolar ruga length. Femur apical spine pointed, more developed on posterior legs, larger than half the width of femur ( Fig. 10 ). Abdominal spine surpassing mesocoxa, apex curved inward ( Fig. 11 ). Spiracles laterad to a callus ( Fig. 11 ). Trichobothria placed on spiracles line. Posterolateral margins of segment VII convex. Posterior margin of segment VII, in females, obscuring gonocoxites 8.

Male genitalia ( Figs. 5 , 13, 16, 21, 26, 31, 38–41, 53– 55). Pygophore. Process of the ventral rim with 1 + 1 submarginal tooth, not visible in posterior view. Posterolateral angles oblique, concavityoccupying alittle less than the width of the ventral rim process. Parameres bilobate ( Figs. 38–41 ) Phallotheca ( Figs. 53–55 ) with postero-ventral opening; strongly convexdorsally, andslightly concaveventrally. Vesica slightly curved at base, strongly curved at apex, not surpassing the conjunctivallobes ( Fig. 53 ). Secondary gonopore ( Fig. 52 ) open ventrally.

Female genitalia ( Figs. 65 , 69 ). Laterotergites 8 entirely concave, with rounded apices. Gonocoxites 8 reduced obovate, slightly cuspidate, posterior and sutural margins convex. Laterotergites 9 triangular, lateral half slightly convex, median half flat, with a tiny concavity at posterior third. Gonapophyses 8 with a large concavity at middle, where the segment X fit; lateral margins roundish. Segment Xtrapezoidal, transversely striate. Parsintermedialis withless than half the length of the capsula seminalis. Posterior annular flange larger than anterior annular flange. Anterior portion of vesicular area curved, sclerotized, with constriction delimiting the posterior portion of vesicular area.

Measurements in Table I .

Distribution. BRAZIL: Minas Gerais, Santa Catarina, and Rio Grande do Sul.

Material examined. Holotype male. BRAZIL. Santa Catarina: Maracajá, Parque Ecológico Maracajá , 16.I.2006, Bertolin, T. col., n° 001194 ( CERSC). Paratypes. BRAZIL. Minas Gerais: Carmo do Rio Claro, I.1958, Carvalho & Becker col., 1 male ( UFRG) ; Santa Catarina: Maracajá, Parque Ecológico Maracajá , 27.VI.2006, T., Bertolin col., n° 001197 , 1 female ( CERSC) ; idem, n° 001198 , 1 female, ( CERSC) ; idem, n° 001196 , 1 male ( CERSC) ; idem, 21.VII.2006, n° 001195 , 1 male ( CERSC) ; Rio Grande do Sul: Porto Alegre , 21.VIII.1929, n° 235, unknown col., 1 male ( UFRG) .

Comments. The unique characters found in T. maracaja sp. nov. are trichobothria tubercles black and abdominalspine robust attaining mesocoxae. T. maracaja sp. nov. shares with T. brasiliensis the abdominal calli conspicuous, with T. trinotata the lateral margins of juga outlined in black, and with T. taurus the shape of the humeral angles.

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. 8–13. 8, Thoreyella cornuta: head and pronotum; 9, T. brasiliensis: scutellum, hemelythrum and abdomen; 10 and 11, T. maracaja sp. nov.: 10, spine of apex of femur; 11, lateral view of body; 12, T. paraiba sp. nov.: head, dorsal view; 13, T. maracaja sp. nov.: head, dorsal view. amp, antero-lateral margin of pronotum; as, abdominal spine; cs, claval suture; ha, humeral angle; s, scutellum; VI, sixth abdominal segment. Scale: 8–9, 11–13 = 1 mm, 10 = 0.5 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.