Triunfusincarnatus, BARROs & Barão & Grazia, 2020

BARROs, Lurdiana D., Barão, Kim R. & Grazia, Jocélia, 2020, Systematics of the Mecocephala group (Hemiptera: Heteroptera: Pentatomidae) based on a phylogenetic perspective: Inclusion of Hypanthracos, description of three new genera, and redescription of Ogmocoris, Arthropod Systematics & Phylogeny 78 (2), pp. 321-360 : 347-349

Triunfusincarnatus sp.n.

Figs. 15 A– F, 16G, 17

Diagnosis. Valvifers 8 equal in length to laterotergites 9. Valvifers 9 flat with posterior margins straight. Lateral sclerotized areas of valvulae 9 scarcely defined or scle- rotized. Diameter of proximal ductus receptaculi greater than diameter of median wall of vesicular area. Capsula seminalis without processes, shorter than pars intermedialis.

Description. Measurements: Table 4. Colouration. Gen- eral colour orange-castaneous dorsally, dark brown ven- trally; densely punctate. Head and clypeus with oranges

callosities; ocelli orange; antennomeres brownish, ex- cept antennomere 5 orange-castaneous; yellow blotches on antenniferous tubercles and maxillary plates; labium orange-brown. Outline of anterolateral margins of prono- tum and a medial longitudinal line on scutellum orangecastaneous. Pro-, meso-, metasternum and evaporatorium dark brown; ostiolar peritremes orange. Legs dark brown, except coxae, trochanters, and apical third of each femora orange. Connexivum yellowish-orange. Abdominal ster- nites dark castaneous, sublateral band from prosternum to abdominal sternite 7 yellowish-orange. Spiracles dark castaneous. Trichobothria castaneous. Head ( Fig. 15A, D ): Anteocular processes absent. Proportions of antenno- meres: 1> 2 <3> 4 <5 ( Fig. 15E ). Thorax: Pronotum with anterior angles not produced; anterolateral margins straight, smooth; humeral angles not produced ( Fig. 15A, D ). Gyrification of evaporatorium with high wrinkles; an- terolateral margin of each evaporatorium rounded; outer margin of each metapleural evaporatorium concave ( Fig. 15F ). Membrane with veins linear, some bifurcate basally. Hemelytra not surpassing apex of abdomen. Female terminalia: Valvifers 8 subequal in length to laterotergites 9, partially covering valvifers 9. Laterotergites 8 triangu- lar, posterior margins straight. Valvifers 9 flat, leveled, relative to the position of segment X; posterior margins straight, lateral margins entire. Laterotergites 9 triangu- lar, posterior margins obtusely rounded. Female genitalia: Valvulae 9 with 1 + 1 lateral areas scarcely defined or sclerotized, placed along with ring sclerite. Ectodermal ductus ( Fig. 16G ): diameter of the proximal ductus recep- taculi greater than diameter of median wall of vesicular area. Annular flanges divergent. Pars intermedialis rec- tilinear. Capsula seminalis globose, without processes, shorter than pars intermedialis.

Male. Unknown.

Etymology. Incarnatus, in Latin, orange, referring to the orange body colour; adjective.

Type material: Holotype ♀, ‘ BRAZIL, Rio Grande do Sul, [prob- ably São Lourenço do Sul] | [?]. iv.1995 Loescher L. leg.’ ( MECB) <Illustrated specimen, abdomen and terminalia prepared> .

Distribution. Brazil: Rio Grande do Sul ( Fig. 17 ).

Figures

Fig. 15. Triunfus incarnatus sp.n. ♀: A: dorsal; B: ventral; C: lateral; D: head and pronotum; E: antenna; F: external scent efferent system. Scale bars:A–C = 2.0 mm; D = 1.0 mm; E–F = 0.5 mm.

← Fig. 16. Liscocephala gen.n. and Triunfus gen.n. ♀: L. fumosa: A, C: female terminalia. T. carvalhoi: B, D: female terminalia; E, F: female receptaculum seminis and ausenwand. T. incarnatus: G: female receptaculum seminis and ausenwand. Scale bars = 0.5 mm.

Fig. 17. Map of geographical distribution. — Colors: yellow – Chimerocoris luridus sp.n.; purple – Hypanthracos meridionalis; red – Liscocephala fumosa sp.n.; green – Ogmocoris Mayr, 1864; blue – Triunfus gen. n.