Pedinonotus catarinensis, Fernandes & Grazia, 2002

Fernandes, José Antônio M. & Grazia, Jocélia, 2002, Pedinonotus, a new southern Neotropical genus (Heteroptera, Pentatomidae, Pentatomini), Zootaxa 101, pp. 1-7 : 3-6

Pedinonotus catarinensis sp. nov. ( Figs. 1­11 )

Holotype male. BRAZIL. Santa Catarina: Seara, Nova Teutônia , 27o11’S 52o23’L, XII­ 1939, Fritz Plaumann col. ( AMNH). Paratypes, 5 males 10 females. BRAZIL. Santa Catarina: Corupá, X­1953, A. Maller, 1 female ( UFRG); Seara, Nova Teutônia , 27o11’S 52o23’L, IX­1939, Fritz Plaumann col., 1 male 1 female ( UFRG), 1 male ( USNM), 1 male 3 females ( AMNH); same data as holotype, 1 female ( AMNH); same data, 300­ 500m, 24­ IV­1966, 1 female ( USNM); same data, V­1967, 2 females ( AMNH); same data, X­1969, 1 female ( AMNH); same data, X­1974, 1 female ( AMNH); same data, X­1975, 1 male ( AMNH).

Small species (8­10 mm long). Body elliptical. Dark­castaneous to black. Dorsal surface flat. Punctures dense and homogeneously spread on dorsal and ventral surface. Rostrum reaching mesocoxae. Antennal segments: II the shortest, I, IV, III, and V the longest. Pronotum wavy. Anterolateral margin of pronotum toothed on proximal half and crenulate on distal one. Anterolateral angle not toothed. Mesosternum with a low medial carina restricted to the first third. Legs concolorous with body. Trichobothria on pale­yellow calli. Body length: 8.2­9.7. Body width: 4.2­5.0. Head length: 1.7­1.9. Head width: 1.7­ 1.9. Pronotal length: 1.9­2.1. Pronotal width: 4.0­4.7. Scutellal length: 3.0­3.4. Scutellal width: 2.4­3.0.

Male. Genital cup hairy. Posterolateral angles conspicuous. Dorsal arms of superior layer (asl) laterally flat armed with tooth­like projection, each arm oblique to proctiger. Posterior processes (ppsl) triangular, ventrally directed. Concavity of superior layer deep, pilose. Keel of inferior layer conspicuous. Paramere rectangular, laterally flattened with protuberance on each distal angle. Processus phallothecae digitiform, apex divergent. Processus conjunctivae 1 straight, divergent, twice or more longer than processus phallothecae. Vesica at least ¼ the length of the phallus.

Female. Posterior margin of gonocoxites 8 crenulate. Laterotergites 8 and 9 almost equal in length; laterotergites 9 slightly surpassing band joining laterotergites 8 dorsally. Diameter of ductus receptaculi before vesicular area about five times diameter of ductus after same area. Ductus receptaculi before vesicular area shorter than after vesicular area. Capsula seminalis oblong in profile.

Comments: Pedinonotus catarinensis may be recognised by its unique pygophore: arms of superior layer oblique to proctiger and dorsally projected; concavity of superior layer deep; margin of inferior layer with conspicuous keel. The vesica is quite large, occupying more of the phallus than that of other genera from the group. Female internal genitalia has also a noticeable character, a folded area at the bottom of the vesicular area of the ductus receptaculi.

Figures

FIGURE 1. Facies of Pedinonotus catarinensis sp. nov.

FIGURES 2 ­ 11, male and female genitalia. Figs. 2 ­ 4, Phallus, dorsal, lateral and ventral view respectively. Fig. 5, Paramere, lateral view. Figs. 6 ­ 9. Pygophore: dorsal, posterior, ventral and lateral view respectively. (asl = arms of superior layer of ventral rim; bp = basal plates of articulatory apparatus; bpp = basal process of proctiger; cj = conjunctiva; dc = dorsal connectives; dsd = ductus seminis distalis; dr = dorsal rim; il = inferior layer of ventral rim; me = membranblase; pa = paramere; pca = processus capitati; ph = phallotheca; ppsl = posterior process of superior layer of ventral rim; pr = proctiger; prcj 1 = processus conjunctivae 1; prcj 2 = processus conjuntivae 2; prph = processus phallothecae; prv = processus vesicae; v = vesica). Figs. 10 ­ 11. Gonocoxites, laterotergites and gonapophyses of ninth segment, and ectodermical genital ducts. (aac = anterior annular crest; ch = chitinnelipsen; cs = capsula seminalis; dur = ductus receptaculi; g 9 = gonapophyses of ninth segment; gc 8 = gonocoxites of eighth segment; gc 9 = gonocoxites of ninth segment; la 8 = laterotergites of eighth segment; la 9 = laterotergites of ninth segment; pac = posterior annular crest; pi = pars intermedialis; sp = spiracles of seventh segment; st = secondary thickenings of gonapophyses 9; tvi = thickening of vaginal intima; va = vesicular area; x = tenth abdominal segment)