Chinavia ernsti, Grazia & Schwertner & Ferrari, 2006

Grazia, J., Schwertner, C. F. & Ferrari, A., 2006, Description of five new species of Chinavia Orian (Hemiptera, Pentatomidae, Pentatominae) from western and northwestern South America, Denisia (Oxford, England) 50, pp. 423-434 : 428-430

Chinavia ernsti nov.sp.

( Figs 4, 8, 13,18, 32, 36)

Description. Dorsal surface dark green, densely punctured; punctures dark castaneous to ferrugineous, scutellum and hemelytra speckled with minute yellow calli ( Fig. 4). Margins of head, pronotum and hemelytra also dark green. Connexival segments, each with a black spot on middle of posterior margin. Hemelytral membrane hyaline. Ventral surface pale green on thorax and yellowish on abdómen; spiracles castaneous; lateral thirds of abdómen with concolorous punctures. Antennae and legs greenish. Antennal segments with castaneous rings at apex of third and apical half of fourth and fifth. Black line between eyes and base of antenniferous tubercles present.

Médium size. Male length 16.89, width 7.98. Female length 17.82±0.19 (17.69- 17.96), width 8.31 ±0.09 (8.25-8.38).

Head. Surface of juga flat, margins convex at apex, convergent to each other. Proportions of antennal segments: I<II»III<IV»V. Apex of rostrum lying between hind coxae; proportions of rostral segments: I<II>III>IV.

Thorax. Anterolateral margins of pronotum straight; humeral angles rounded. Costal angles of corium forming an angle of almost 90°, attaining middle of connexival segment VI; membrane suturai margins nearly straight. Ostiolar ruga attaining 3/4 of metapleural width.

Abdominal venter convex. Medial spine of third abdominal segment very short, laterally compressed, scarcely attaining hind coxae.

Male genitália. Pygophore subquadrangular; posterolateral angles projected posteriorly (Figs 8, 13, 18). Genital cup moderately excavated. Median projection of dorsal rim subtriangular,apex slightly convex; lateral thirds of dorsal rim not projected over genital cup (Fig. 8). Flaps of the infolding of ventral rim moderately bent over genital cup; ectal surface of flaps almost flat, lateral margin crenulate, apical tooth not developed; mesial margin of flaps strongly sinuate, broadly "U"-shaped in posterior view (Figs 8, 13). Median excavation of ventral rim broadly "U"-shaped in ventral view (Fig. 18). Depression of ventral wall of pygophore low, median carina inconspicuous. Dorsal surface of segment X with a low depression; delimited by a inconspicuous semicircular carina.

Female genitália. Sinuosites of posterior margin of segment VII over basal angles of laterotergites 8 inconspicuous ( Fig. 32). Surface of gonocoxites 8 slightly convex; suturai margins juxtaposed, suturai angles rounded, not covering posterior apex of gonapophyses 8; posterior margin of gonocoxites 8 almost straight. Spine of posterior margin of gonocoxites 9 well developed reaching basal third of gonocoxites 9, not covered by gonapophyses 8. Apex of laterotergites 9 rounded, surface moderately convex, mesial margins rectilinear. Ductus receptaculi before vesicular área almost as long as vesicular área (Fig. 36). Pars intermedialis almost as long as capsula seminalis; diameter of capsula seminalis twice the diameter of pars intermedialis; length of processes of capsula seminalis almost the same length of the capsula.

Type material. Holotype: Venezuela, Bolivar. Cerro Guaiaquinima (near Campo), Camp l. 63 °3 TW 5 °S6 ’ N, 1000m, 11.1990, D. Gnmaldı wll. ( IU, AMNH) . Paratypes: same dara as halo-(ypê (19 Q AMNH)

Etymology. This species is named in honor of Dr. Ernst Heiss in recognition of his wnrributions ro the knowledge of: he mre bugs.

Distribution. Venezuela.

Comments. Using ROLSTON'S (1983) key, this species, C. boliviensis nov.sp., C. wygodzinskyi (ROLSTON), and C. macdonaldi (ROLSTON) ali key to the same couplet. Chinavia ernsti nov.sp. can be distinguished from those species by the dorsal surface being totally dark green with dark castaneous punctures; the presence of a black spot at the middle of the posterior margins of the connexival segments is also diagnostic.