Chinavia heissi, 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 : 430-431

Chinavia heissi nov.sp. (Figs 1 f 9 f H 19, 24, 25, 26, 29, 30, 33, 37)

Description. Dorsal surface green to yellowish green; punctures concolorous, finer and denser on head and pronotum (Fig. 1). Orange along margins of head, pronotum, basal third of corium and connexivum. In black: spots on mesial angles of pronotal cieatrices and spots on posterolateral angles of urosternites and connexivum. Hemelytral membrane hyaline. Ventral surface yellowish green on median third; punctures concolorous, finer and denser on abdominal segments. Spiracles dark. Antennae green; ápices of third and fourth and almost half of fifth segments darker green to ferrugineous. Black line between eyes and antenniferous tubercles absent. Rostrum and legs yellowish green; sometimes ápices of tibiae and tarsi dark green.

Médium size. Male length 15.49±0.09 (15.43-15.56), width 7.58±0.19 (7.45 - 7.71). Female length 16.49±0.27 (16.23- 16.76).

Head. Surface of juga flat; head slightly truncate at apex. 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. Gostai angles of corium forming an angle of of almost 90°, not attaining posterior margin of connexival segment VI; membrane suturai margins nearly straight. Ostiolar ruga attaining 2/3 of metapleural width.

Abdominal venter convex. Medial spine of third abdominal segment short, laterally compressed, lying between hind coxae.

Male genitália. Pygophore subtrapezoidal; posterolateral angles not projected (Figs 9, 14, 19). Genital cup moderately excavated. Median projection of dorsal rim almost quadrangular, conspicuously concave at apex; lateral thirds of dorsal rim slightly projected over genital cup. Flaps of the infolding of ventral rim weakly bent over genital cup (Figs 9, 14). Ectal surface of flaps aimost flat, lateral margin inconspicuously crenulate, without denticles, apical angles strongly produced dorsad, apex turned laterad. Mesial margin sinuate forming a broad "V" in posterior view (Figs 9, 14). Ventral rim concave, notched at middle (Fig. 19). Depression of ventral wall of pygophore strongly excavated, carina well developed. Dorsal surface of segment X with a low depression delimited by a well developed, bifid carina (Figs 9, 14). Paramere with apical portion shorter than basal portion; basal spur half the length of apical portion which is conical ( Figs 24-26). Phallus ( Figs 29, 30) as described for C. chiknsis nov.sp.

Female genitália. Sinuosites of posterior margin of segment VII over basal angles of laterotergites 8 inconspicuous ( Fig. 33). Surface of gonocoxites 8 convex; suturai margins juxtaposed, suturai angles rounded, not covering apex of gonapophyses 8; posterior margin of gonocoxites 8 sinuate, posterolateral angles posteriorly projected. Spine of posterior margin of gonapophyses 9 developed, reaching basal fourth of gonocoxites 9, not covered by gonopophyses 8. Apex of laterotergites 9 rounded, surface moderately concave, mesial margins concave at apical third. Ductus receptaculi before vesicular área shorter than vesicular área (Fig. 37). Diameter of pars intermedialis 1/3 the diameter of capsula seminalis. Basal fourth of vesicular área differentiated, seemingly more sclerotized than remaining apical 3/4. Length of processes of capsula seminalis more than twice the length of capsula.

Type material. Holotype: Venezuela, Rancho Grande , l.lOOm, 5.V.1951, F. Fernandez coll. (lo-, MIZA) . Paratypes: Venezuela, Distrito Federal, near El Junco , l.SOOm, 9.1.1982, R.T. Schuh & B.M. Massie, beating on forest edge (3 o o, AMNH) ; illegible label, 1936 (lo-, NMNH) .

Etymology. This species is named in honor of Dr. Ernst Heiss in recognition of his contributions to the knowledge of the true bugs.

Distribution. Venezuela.

Comments. Using ROLSTON'S (1983) key, C. heissi nov.sp. and C. neoteretis nov.sp. will key to C. teretis (ROLSTON). In C. heissi , the abdominal spine is a little shorter than in the other two species. The most striking differences among them can be found in the male genitália. Segment X in C. heissi hás the surface excavated, delimited by a bifid carina; in C. neoteretis, the surface is convex with a tubular process bifid at apex; and in C. teretis, the surface is simply convex without a process. The apical tooth of the flaps of the infolding of the ventral rim of pygophore are less developed and directed dorsad in C. heissi and C. neoteretis than in C. teretis in which the apical tooth is directed posteriorly.