Braunus sciocorinus ( Walker, 1867 )

Barão, Kim Ribeiro, Garbelotto, Thereza De Almeida, Campos, Luiz Alexandre & Grazia, Jocelia, 2016, Unusual looking pentatomids: reassessing the taxonomy of Braunus Distant and Lojus McDonald (Hemiptera: Heteroptera: Pentatomidae), Zootaxa 4078 (1), pp. 168-186 : 171-172

Braunus sciocorinus ( Walker, 1867)

( Figures 1 –3, 12–35, 78– 79)

Coriplatus sciocorinus Walker, 1867: 197 –198.

Braunus sciocorinus: Distant, 1899: 423 ; Kirkaldy, 1909: 220.

Material examined. Lectotype ♀, [ ECUADOR, Napo], Archidona ( BMNH), here designated. Paralectotype ♀ [ ECUADOR, Napo], Archidona ( BMNH), here designated. 1 ♀, ECUADOR, Pichincha, Bellavista Cloud Forest Reserve, 0°00’ 55 ”N 78 ° 40 ’ 49 ”W, 2200–2300 m, tropical cloud forest, M.V. light, 24–28.VII. 2007, CPDT Gillet leg. ( BMNH); 3 ♂, 4 ♀, ECUADOR, Napo, Yanayacu Biological Station, 2144 m, 0.60 °S 77.89 °W, 24–30.XI. 2009, D. Forero leg. [EC09_L 1] (1 ♂ 1 ♀ UCRC; 1 ♂ 1 ♀ USNM; 1 ♂ 2 ♀ MNRJ).

Diagnosis. Head dark brown dorsally ( Figs 12–13). Anterior angles of pronotum each with a stout, spine-like tubercle, surpassing lateral margins of each compound eye; anterolateral margins each with 1–2 small tubercles; each humeral angle bilobed apically, anterior lobe with 2–3 processes; posterior margin weakly concave ( Figs 1–3). Apex of hemelytral radial vein calloused; corium ivory, reaching anterior margin of abdominal segment VI; membrane reaching anterior margin of abdominal segment VIII on females ( Fig. 15) and surpassing abdominal apex on males ( Fig. 14). Male genitalia: posterolateral angles of pygophore rounded; inferior layer of ventral rim weakly emarginate, with a bilobed projection medially; parameres acute apically ( Figs 18–24). Female genitalia: posterior margin of each gonocoxite 8 rectilinear; posterior margin of each laterotergite 8 acute; laterotergites 9 digitiform ( Figs 32–35).

Male genitalia. Dorsal rim concave with 1 + 1 trapezoidal projections laterally to segment X ( Figs 18–19; dr). Inferior layer of ventral rim projected posteriorly, bilobed apically ( Figs 20–23; vr). Superior layer of ventral rim depressed medially ( Figs 18–21; sl). Posterolateral angles rounded, bearing setae ( Figs 18–19; pa). Abdominal segment X rectangular ( Figs 18 –19, 25; X). Parameres F-shaped; head of paramere blade-like, acute apically; in lateral view, paramere with a rounded, median process bearing setae ( Figs 18 –21, 24; par). Phallus: limit between sclerotized and membranous area of phallotheca sinuous ( Figs 28–29; ph). Ventral conjunctival processes curved toward vesica apically, its dorsal surface concave ( Figs 26–31; v cp). Laterodorsal conjunctival processes each digitiform, membranous, shorter than vesica ( Figs 28–29; lcp). Vesica cup-like, projected dorsally; dorsal margin strongly sclerotized and emarginated medially ( Figs 28–31; v). Ductus seminis distalis curved ventrally, originating from central part of vesica ( Figs 30–31; ds). Process of gonopore bilobed apically.

Female genitalia. Gonocoxites 8 longer than wide; each sutural margin parallel basally, sinuous and divergent apically; sutural margins setose, setae covering gonapophyses 8; posterior margins rectilinear ( Figs 32–33; gc 8). Gonapophyses 8 visible, subtriangular, carinated medially ( Figs 32–33; g 8). Laterotergites 8 triangular, each longer than wide; posterior margin acute, surpassing tergite 8 ( Figs 32–33; la 8). Gonocoxites 9 trapezoidal, each with 1 + 1 tufts of long setae on its disc ( Figs 32–35; gc 9). Laterotergites 9 depressed basally; lateral margins concave; apices rounded, each barely surpassing tergite 8 ( Figs 32–33; la 9). Segment X rectangular ( Figs 32–33; X). Gonapophyses 9 with 1 + 1 lateral sclerotized areas placed along with chitinellipsen ( Figs 34–35; ch) and 1 + 1 lateral folds partially covering chitinellipsen ( Figs 34–35; lf). Chitinellipsen elliptical ( Figs 34–35; ch). Thickening of vaginal intima circular with an anterior subtriangular projection ( Figs 34–35; tvi). Median duct of vesicular area sinuous at base ( Figs 34–35; md). Capsula seminalis with three finger-like processes ( Figs 34–35; cs).

Measurements. Total length, 9.6 ± 0.42 (8.4–11.5); head length, 2.2 ± 0.05 (2.1–2.5); head width, 1.6 ± 0.04 (1.5–1.8); length of pronotum, 1.9 ± 0.06 (1.8–2.3); width of pronotum at base, 4.3 ± 0.16 (3.7–5.1); maximum width of pronotum at humeral angle, 5.0 ± 0.18 (4.5 –6.0); length of scutellum, 3.0 ± 0.11 (2.6–3.5); width of scutellum, 2.8 ± 0.10 (2.5–3.3); width of abdomen across third segment, 5.5 ± 0.13 (5.0– 5.8).

Distribution. Ecuador (Napo, Pichincha) ( Figs 78–79).