Braunus ocellatus ( Thomas, 2001 )

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 : 181-182

Braunus ocellatus ( Thomas, 2001) comb. nov.

( Figures 11 , 54–79, 81–82 )

Lojus ocellatus Thomas, 2001: 854 –857, figs 1–4.

Material examined. Holotype ♂, ECUADOR, Napo, Cabañas San Isidro, 2 km NW Cosanga, 0°40’S 77°55’W, 22–30.I.1996, T.J. Henry leg. ( USNM) . Paratype ♀, same label data as holotype ( DBTC) . Paratype ♂, ECUADOR, Napo, CabañasSan Isidro , 2 km NW Cosanga, 0°33’S 77°55’W, 20–23.VII.1998, 2150 m, premontaine rain forest, Ratcliffe, Jameson, Smith and Villatoro leg. ( UNSM) . Additional material examined. 3 ♂ 3 ♀, ECUADOR, Napo, Yanayacu Biological Station , 2144 m, 0.60°S 77.89°W, 24–30.XI.2009, D. Forero leg. [EC09_L1] (1♂ 1♀ UCRC; 1♂ 1♀ USNM; 1♂ 1♀ MNRJ) ; 1♀, ECUADOR, Napo, 1.3 km SW of Baeza, 2050 m, 00°28’34”S 77°53’47”W, 11.XI.2006, J. Skuhrovec leg. ( NMPC) .

Diagnosis. Body color light brown ( Figs 54–55 ). Anterior angles of pronotum each with obtuse projection; each anterolateral margin with three small spines, not evenly distributed; humeral angles quadrate, each with bilobed apex, anterior lobe with 1–2 spines and posterior lobe with a digitoid process; posterior margin weakly concave ( Fig. 11 ). Apex of scutellum reaching abdominal segment V. Apex of hemelytral radial vein calloused; corium reaching abdominal segment VI; membrane reaching anterior margin of abdominal segment VII on females ( Fig. 57 ) and surpassing abdominal apex on males ( Fig. 56 ). Male genitalia: posterolateral angles obtuse; inferior layer of ventral rim emarginate with one projection medially ( Figs 60–65 ). Female genitalia: posterior margin of each gonocoxite 8 concave; posterior margin of each laterotergite 8 acute; lateral margin of each laterotergite 9 straight ( Figs 74–75 ).

Male genitalia. Dorsal rim sinuous ( Figs 60–61 ; dr). Posterolateral angles obtuse ( Figs 60–61 ; pa). Inferior layer of ventral rim with median projection ( Figs 64–65 ; vr); superior layer of ventral rim depressed medially ( Figs 62–63 ; sl). Segment X rectangular ( Figs 62–63, 67 ; X). Parameres F-shaped, apex acute dorsally and ventrally; basal process rounded bearing setal tuft ( Figs 60–63, 66 ; par). Phallus: limit of sclerotized and membranous area of phallotheca straight ( Figs 70–71 ; ph). Ventral conjunctival processes each curved toward vesica apically, dorsal surface concave ( Figs 68–73 ; vcp). Each laterodorsal conjunctival process digitiform, sclerotized, longer than vesica ( Figs 68–73 ; lcp). Vesica cup-like, strongly projected dorsally, with dorsal margin uniformly concave ( Figs 70–73 ; v). Ductus seminis distalis ventrally curved, originating in central part of vesica ( Figs 70–73 ; ds). Process of gonopore absent.

Female genitalia. Gonocoxites 8 longer than wide; sutural margins juxtaposed at 1/3 basal portion, each widely separated and sinuous on the remaining 2/3; posterior margins concave; each sutural margin with fringe of setae covering gonapophyses 8 ( Figs 74–75 ; gc8). Gonapophyses 8 visible, carinated medially ( Figs 74–75 ; g8). Laterotergites 8 triangular, longer than wide; each posterior margin acute surpassing tergite 8; each spiracle placed posterior to lateral angle of each gonocoxite 8 ( Figs 74–75 ; la8). Gonocoxites 9 trapezoidal, each with 1+1 tufts of long setae on disc ( Figs 74–77 ; gc9). Each laterotergite 9 digitiform, depressed basally; apex rounded and surpassing tergite 8 ( Figs 74–75 ; la9). Segment X rectangular ( Figs 74–75 ; X). Gonapophyses 9 each 1+1 sclerotized areas surrounding chitinellipsen ( Figs 76–77 ; ch) and 1+1 lateral folds reaching posterior margin of chitinellipsen ( Figs 76–77 ; ch). Chitinellipsen circular ( Figs 76–77 ; ch). Thickening of vaginal intima tube-like ( Figs 76–77 ; t vi). Median duct of vesicular area with a sclerotized ring at base ( Figs 76–77 ; md). Capsula seminalis with three processes ( Figs 76–77 ; cs).

Measurements. Total length, 8.5 ± 0.37 (7.7–9.5); head length, 2.2 ± 0.11 (1.9–2.5); head width, 1.4 ± 0.04 (1.3–1.5); length of pronotum, 1.7 ± 0.05 (1.6–1.9); width of pronotum at base, 3.9 ± 0.16 (3.5–4.3); maximum width of pronotum at humeral angle, 5.4 ± 0.20 (4.9–6.0); length of scutellum, 2.6 ± 0.15 (2.3–3.0); width of scutellum, 2.5 ± 0.10 (2.5–2.8); width of abdomen across third segment, 4.6 ± 0.21 (4.2–5.4).

Distribution. Ecuador (Napo) ( Figs 78–79, 81–82 ).

Figures

FIGURES 1 – 11. Schematic drawings of pronotum of Braunus Distant, 1899 in dorsal view. 1 – 3. B. sciocorinus (Walker, 1867); 4. B. machadoi Barão & Garbelotto sp. nov.; 5. B. gibbus Garbelotto & Barão sp. nov.; 6. B. prionotus Barão & Garbelotto sp. nov.; 7. B. asperus (McDonald, 1982) comb. nov.; 8. B. ateuchus (Brailovski & Rolston, 1986) comb. nov.; 9. B. bordoni (Thomas, 1997) comb. nov.; 10. B. brettlizorum (Thomas, 1997) comb. nov.; 11. B. ocellatus (Thomas, 2001) comb. nov. Scale bars = 1 mm.

FIGURES 54 – 59. Braunus ocellatus (Thomas, 2001) comb. nov.. 54 – 55. habitus; 54. dorsal view; 55. ventral view; 56. male forewing; 57. female forewing; 58. male hindwing; 59. external scent efferent system. Abreviattions: ev = evaporatorium; ms = mesopleura; mt = metapleura; o = ostiole. Scale bars: 47 – 48 = 2 mm; 49 – 52 = 0.5 mm.

FIGURES 60 – 73. Braunus ocellatus (Thomas, 2001) comb. nov., male genitalia. 60 – 65. pygophore; 60 – 61. dorsal view; 62 – 63. posterior view; 64 – 65. ventral view; 66. right paramere, lateral view; 67. abdominal segment X, dorsal view; 68 – 73. phallus; 68 – 69. dorsal view; 70 – 71. lateral view; 72 – 73. ventral view. Abbreviations: dr = dorsal rim; ds = ductus seminis distalis; lcp = laterodorsal conjunctival process; pa = posterolateral angle; par = paramere; ph = phallotheca; sl = mid depression of superior layer of ventral rim; ts = thecal shield; v = vesica; vcp = ventral conjunctival process; vr = ventral rim; X = abdominal segment X. Scale bars: 52 – 58 = 0.5 mm; 59 – 60 = 0.25 mm.

FIGURES 74 – 77. Braunus ocellatus (Thomas, 2001) comb. nov., female genitalia. 74 – 75. genital plates, ventroposterior view; 76 – 77. female receptaculum seminis and ausenwand, ventral view. Abbreviations: cs = capsula seminalis; gc 8 = gonocoxites 8; gc 9 = gonocoxites 9; g 8 = gonapophyses 8; g 9 = gonapophyses 9; la 8 = laterotergites 8; la 9 = laterotergites 9; lf = lateral folding of gonapophyses 9; md = median duct of vesicular area; pi = pars intermedialis; rs = ring sclerites; tvi = thickning of vaginal intima; X = abdominal segment X. Scale bars: 67 – 68 = 0.5 mm; 69 – 70 = 0.25 mm.

FIGURES 78 – 82. Distribution of species of Braunus Distant, 1899 and localities of some collection events. 78. map of localities; 79. a collection locality of B. sciocorinus (Walker, 1867) and B. ocellatus (Thomas, 2001) comb. nov. (ECUADOR, Napo, Yanayacu Biological Station; photo by D. Forero); 80. type locality of B. machadoi Barão & Garbelotto sp. nov. (PERU, Cuzco, Wayqecha Research Center; photo by C. Weirauch); 81 – 82. a collection locality of B. ocellatus (Thomas, 2001) comb. nov. (ECUADOR, Napo, 1.3 km SW of Baeza; photos by J. Skuhrovec).