Braunus prionotus Barão & Garbelotto, 2016

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 : 177-178

Braunus prionotus Barão & Garbelotto sp. nov.

( Figures 48–53)

Material examined. Holotype ♀, COLOMBIA, VII. 1974, Steinheil leg. ( MNHN).

Diagnosis. Lateral margins of mandibular plates denticulate ( Fig. 48, 50). Anterior angle of pronotum with an obtuse process; anterolateral margins with two small tubercles; humeral angles directed anteriad, each with multiple tubercles ( Fig. 6, 48). Apex of hemelytral radial vein calloused; corium reaching abdominal segment VI. Apex of scutellum reflexed laterally. Female genitalia: gonocoxites 8 wider than long; posterior margin of each gonocoxite 8 concave; posterior margin of each laterotergite 8 obtuse; posterior margin of gonocoxites 9 concave ( Figs 52–53).

Description. Body color dark brown ( Figs 48–49). Mandibular plates longer than clypeus; lateral margins denticulate ( Fig. 48). Proportion of antennal segments: I<II=IV<III (antennal segment V missing). Labial apex attaining abdominal sternite IV ( Fig. 49). Processes at anterior angles of pronotum each directed laterally, obtuse apically, not reaching posterior margins of compound eyes. Anterolateral margins of pronotum each bearing 2 + 2 little-produced, finger-like tubercles; humeral angles projected anteriad, each with multiple processes; each posterolateral margin sinuate; pronotal disc calloused between cicatrices ( Fig. 6). Scutellum reaching posterior margin of abdominal segment VI; scutellum swollen longitudinally, medially; postfrenal lobe about 1 / 2 of length of frenal lobe; apex of scutellum reflexed laterally. Hemelytral corium reaching abdominal segment VI; radial vein calloused apically; membrane reduced, not surpassing abdominal segment VI, veins absent. Hind wings reduced.

Female genitalia. Gonocoxites 8 wider than long; each sutural margin parallel and juxtaposed at 1 / 3 basal portion, widely separated and concave on the remaining 2 / 3; posterior margins concave ( Figs 52–53; gc 8). Gonapophyses 8 visible, subtriangular, with median carina ( Figs 52–53; g 8). Laterotergites 8 triangular, longer than wide, each posterior margin obtuse, surpassing tergite 8 ( Figs 52–53; la 8). Gonocoxites 9 trapezoidal, posterior margin convex ( Figs 52–53; gc 9). Laterotergites 9 finger-like, each strongly depressed basally; apices rounded, each barely surpassing posterior margin of tergite 8 ( Figs 52–53; la 9). Segment X subrectangular ( Figs 52–53; X).

Measurements. Total length, 11.3; head length, 3.0; head width, 2.9; length of pronotum, 2.4; width of pronotum at base, 5.1; maximum width of pronotum at humeral angle, 5.8; length of scutellum, 3.6; width of scutellum, 4.0; width of abdomen across third segment, 6.8.

Etymology. prionotus , from the Greek, prionotos, meaning denticulate, serrate, in reference to the unique characteristic of the lateral margins of mandibular plates and humeral angles.

Distribution. Colombia.

Remarks. Male unknown.