Chinavia chilensis, 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 : 426-428

Chinavia chilensis nov.sp. ( Figs 3, 7, 12, 1 7 ,2 1,2 2,2 3,2 7,2 8,3 1,3 5)

Description. Dorsal surface dark to light green speckled with subcaloused yellow dots, especially on scutellum and hemelytra; punctures concolorous, finer on head and pronotum ( Fig. 3). Reddish (sometimes pale yellow) along margins of head, pronotum, basal third of corium and connexivum; base of scutellum with five irregular red dots, apex pale red. In black: lateral and sometimes mesial margins of juga, humeral angles, spots on lateral and mesial angles of pronotal cicatrices, spots on posterolateral angles of urosternites, sometimes onto posterolateral angles of connexivum, extending or not to posterior margins of connexival segments. Hemelytral membrane hyaline. Ventral surface light green; punctures concolorous, finer on abdominal segments. Spiracles dark, each placed on yellow callus. Antennae green, ferrugineous on apical half of third and the entire fourth and fifth segments; black line between eyes and base of antenniferous tubercles present. Rostrum sometimes reddish. Legs green, base of tibiae sometimes pale reddish.

			HL	HW	ID	HLE	Al	AM	Alll	AIV	AV	RI	RII	RIII	RIV	PL	PW	SP	SW
C. boliviensis	Cf		2.02	2.73	1.56	0.98	0.52	1.04	1.17	1.50	1.63	0.91	1.17	1.11	0.85	2.53	7.45	5.19	4.66
C chilensis	crer	Mean	2.21	2.71	1.64	1.17	0.55	0.99	1.40	1.46	1.37	0.85	1.47	1.19	0.98	2.09	6.78	4.89	4.16
		SD	0.05	0.03	0.03	0.05	0.04	0.06	0.08	0.05	0.09	0.11	0.08	0.04	0.00	0.07	0.19	0.17	0.13
		Min	2.15	2.67	1.63	1.11	0.52	0.91	1.30	1.43	1.30	0.78	1.43	1.17	0.98	2.00	6.52	4.66	3.99
		Max	2.28	2.73	1.69	1.24	0.59	1.04	1.50	1.50	1.43	0.98	1.56	1.24	0.98	2.13	6.92	5.05	4.26
	99	Mean	2.43	2.95	1.76	1.26	0.57	1.11	1.59	1.50	1.45	0.96	1.65	1.35	1.07	2.50	7.45	5.67	4.63
		SD	0.16	0.20	0.10	0.10	0.10	0.11	0.20	0.12	0.10	0.10	0.20	0.13	0.13	0.30	0.64	0.59	0.44
		Min	2.28	2.73	1.69	1.17	0.46	1.04	1.37	1.37	1.37	0.91	1.56	1.24	0.98	2.26	6.92	5.19	4.26
		Max	2.73	3.32	1.95	1.43	0.72	1.30	1.89	1.63	1.56	1.17	2.02	1.56	1.30	3.06	8.65	6.78	5.45
C. ernsti	0*		2.41	3.12	1.69	1.11	0.52	1.24	1.30	1.89	1.89	0.98	1.69	1.37	0.98	2.39	7.98	5.85	5.19
	99	Mean	2.34	3.22	1.72	1.11	0.59	1.20	1.30	1.89	1.85	1.04	1.69	1.40	1.17	2.59	8.38	6.12	5.25
		SD	0.09	0.05	0.05	0.00	0.00	0.05	0.00	0.09	0.05	0.09	0.00	0.05	0.00	0.09	0.19	0.00	0.09
		Min	2.28	3.19	1.69	1.11	0.59	1.17	1.30	1.82	1.82	0.98	1.69	1.37	1.17	2.53	8.25	6.12	5.19
		Max	2.41	3.25	1.76	1.11	0.59	1.24	1.30	1.95	1.89	1.11	1.69	1.43	1.17	2.66	8.51	6.12	5.32
C. heissi	o-o-	Mean SD	2.21 0.00	2.67 0.00	1.63 0.00	1.14 0.05	0.52 0.00	1.14 0.05	1.37 0.09	1.95 0.09	1.95 —	0.94 0.05	1.56 0.09	1.14 0.05	0.94 0.05	2.39 0.00	7.45 0.00	5.12 0.28	4.59 0.09
		Min	2.21	2.67	1.63	1.11	0.52	1.11	1.30	1.89	1.95	0.91	1.50	1.11	0.91	2.39	7.45	4.92	4.52
		Max	2.21	2.67	1.63	1.17	0.52	1.17	1.43	2.02	1.95	0.98	1.63	1.17	0.98	2.39	7.45	5.32	4.66
	99	Mean	2.30	2.84	1.65	1.13	0.52	1.06	1.28	1.86	1.97	0.82	1.52	1.04	0.98	2.57	7.71	5.50	4.74
		SD	0.08	0.04	0.14	0.04	0.00	0.08	0.04	0.04	0.08	0.08	0.10	0.00	0.00	0.08	0.00	0.33	0.33
		Min	2.21	2.80	1.50	1.11	0.52	0.98	1.24	1.82	1.89	0.78	1.43	1.04	0.98	2.53	7.71	5.19	4.39
		Max	2.34	2.86	1.76	1.17	0.52	1.11	1.30	1.89	2.02	0.91	1.63	1.04	0.98	2.66	7.71	5.85	5.05
C. neoteretis	Cf		2.02	2.67	1.63	1.04	0.52	0.98	1.30	1.76	1.82	0.91	1.43	1.17	0.98	2.13	6.65	4.52	3.99
	99		2.41	3.06	1.89	1.24	0.59	1.17	1.63	2.08	2.21	0.98	1.69	1.30	1.11	2.26	7.71	5.59	4.79

Médium to large size. Male length 14.8±0.38 (14.50-15.30), width 6.58±0.23 (6.25-6.78). Female length 16.91± 1.59 (15.69-19.95).

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

Thorax. Anterolateral margins of pronotum inconspicuously concave; humeral angles angular, sometimes pointed. Coastal angles of corium rounded, surpassing posterior margin of connexival segment VI, sometimes attaining one third of connexival segment VII; membrane suturai margins convex. Ostiolar ruga attaining 3/4 of metapleural width.

Abdominal venter convex. Medial spine of third abdominal segment very short, laterally compressed, not reaching hind coxae.

Male genitália. Pygophore subtriangular, posterolateral angles projected posteriorly (Figs 7, 12, 17). Genital cup moderately excavated. Median projection of dorsal rim subtriangular; lateral thirds of dorsal rim well projected over genital cup, apex with a tooth bent ventrad into genital cup (Fig. 7, tdr). Flaps of the infolding of ventral rim (fvr) weakly bent over genital cup; ectal surface of flaps concave, lateral margin with denticles along its entire length, apical tooth present; mesial margin sinuous, medial emargination U-shaped in posterior view (Figs 7, 12), broadly V-shaped in ventral view (Fig. 17, mevr). Depression of ventral wall of pygophore low, median carina (me) inconspicuous. Dorsal surface of segment X with a low depression; delimited by an inconspicuous semicircular carina (Figs 7, 12). Parameres with apical portion 2/3 longer than basal portion; basal spur (bs) almost 1/5 the length of apical portion, which is straight in dorsal view and tapered to the round apex ( Figs 21 -23). Phallotheca (ph) opening posteroventrally, ventral surface concave. Vesica (v) subrectilinial, apex dorsad, same diameter as ductus seminis proximalis (dsp). Process of vesica (pv) rectilinear, parallel at apex ( Figs 27, 28).

Female genitália. Posterior margin of segment VII truncate at gonocoxites 8 (gc8), sinuosity over basal angles of laterotergites 8 conspicuous ( Fig. 31). Gonocoxites 8 with lateral third pleated, mesial? flattened; basal half of suturai margins juxtaposed, suturai angles rounded; posterior margins almost rectilinear, posterolateral angles not developed. Gonapophyses 8 (g8) surpassing gonocoxites 8. Ápices of laterotergites 9 (Ia9) rounded, surface of each moderately concave, mesial margin convex. Spine of posterior margin of gonapophyses 9 (sg9) present, not surpassing anterior margin of gonocoxites 9 (gc9), and covered by gonapophyses 8. Ductus receptaculi (dr) before vesicular área (vá) almost as long as vesicular área (Fig. 35). Pars intermedialis (pi) almost as long as capsula seminalis (es); diameter of capsula seminalis twice the diameter of pars intermedialis; length of processes of capsula seminalis (pcs) almost the same length of the capsula.

Type material. Holotype: Chile, Antofagasta, San Pedro de Atacama , 9- 12.VI.1952, L.E. Pena coll. (Ia, AMNH) . Paratypes: Peru, Arequipa, 1912, Dr. Escomel (l ç, MNHN) ; Chile, Antofagasta, San Pedro de Atacama , 9-12.VI.1952, L.E. Pena coll. (20*0* 4 ç 9, AMNH) ; Antofagasta, Poços , IV.1954, L.E. Pena coll. (lo>, AMNH) ; Azapa, Arica , 23.XII.1948 (l o, MACN) .

Etymology. Named according the type locality.

Distribution. Chile and Peru.

Comments. Near C. laetum ( STÁL), from which it can be distinguished by having a broader reddish band on the head, and the humeral angles are more angular, sometimes pointed.