Chloropepla stysi, Grazia1 & Schwertner & Greve, 2008

Grazia, Jocélia, Schwertner, Cristiano F. & Greve, Caroline, 2008, Two new species of the genus Chloropepla (Hemiptera: Pentatomidae: Pentatominae) from Brazil *), Acta Entomologica Musei Nationalis Pragae 48 (2), pp. 533-542 : 539-542

Chloropepla stysi sp. nov.

( Fig. 2 , 5-6 , 11-14 , 16-17 )

Typelocality. Brazil, Amazonas: Coari, RioUrucu.

Typematerial. HOLOTYPE:, BRAZIL: ‘ AMAZONAS, Coari, RioUrucu , lg. Marta-3, 4°50 ′ 0.73 ″ S 65°02 ′ 37 ″ W 14- 25.viii.1993, P.F. Bührnheim et al. col., à luzmista de mercúrio’ ( CZPB). PARATYPES: ♀, samelabel dataas holotype ( CZPB) ; BRAZIL:, ‘ AMAZONAS, RioUrubu , 2°10 ′ S 59°49 ′ W, 08-09.v.1983, P. Buhrnheim, N. Otaviano & F. Peralta col.’ ( CZPB); , ‘ BRAZIL, AMAZONAS, Coari, RioUrucu , LOC – 09’, 4°51 ′ 56 ″ S 65°04 ′ 56 ″ W, 25.i.-10.ii.1995, P.F. Bührnheim et al. col. // à luz mistade mercúrio’ ( UFRG); ♀, ‘ BRAZIL, AMAZONAS, Juruá, Mineruazinho , 03°34 ′ 85 ″ S 66°59 ′ 15 ″ W, 13-25.i.1996 P. Bührnheim, N.O. Aguiar et al. col. // à luz mista de mercúrio’ ( UFRG) .

Diagnosis. Medium size (12-15 mm), general color yellowish in dry preserved specimens; body punctures ferrugineous. Antennae with dark ornamentation. Humeral angles acute, not produced into spines. Pygophore rectangular, lateral third of dorsal rim folded toward the genital chamber; marginal process digitiform. Hypandrium with a broad laminar-like expansion dorsally; ventrally, with a bilobate process and 1+1 tumescent areas. Parameres apex elongated; apical spine present, medialspine absent. Phallotheca with two pairs of processes. Vesica obovate. Gonocoxites 8 quadrangular, posterior margin slightly convex; sutural margins divergent. Apical angles of laterotergites 8 and 9 acute, black in color; laterotergites 9 not surpassing laterotergites 8.

Description. General body shape oval ( Fig. 2 ), medium in size. Males total length of: 12.6 ± 0.1; females: 14.3 ± 0.23; males abdominal width: 7.2 ± 0.2; females: 7.6.

Coloration. Dry preserved specimens yellowish, probably green in life; punctures ferrugineous. In black: a longitudinal line in the outer surface of antennal segments Ito III, apex of segment II, apical half of segment III, and apical three-fourths of segments IV and V; dorsal punctures onlateral margins of tibia; apicalportion of tibia; all firstand second tarsisegments and basal half of third. Reddish to grayish spots present on hemelytral membrane.

Head. Triangular, 0.5 times longer than wide (males head length: 2.6 ± 0.1; females: 2.6; males head width: 2.0; female: 2.2; males interocular distance: 1.6; females: 1.8 ± 0.06). Juga surpassing clypeus, slightly juxtaposed at apex; external margins convex. Proportion of antennal segments: I> II> III ≈ IV ≈ V (male antennal segments length: I = 1.3; II = 1.7 ± 0.11; III = 2.1 ± 0.11; IV = 2.1 ± 0.06; females: I = 1.3; II = 1.7 ± 0.11; III = 2.1, IV = 2.3 ± 0.11; V = 2.3). Bucculae evanescent at base; anterior angle truncated. Rostrum reaching metacoxae, first rostral segment slightly surpassing bucculae; proportion of rostral segments: I <II> III ≈ IV (males rostralsegments length: I = 1.3 ± 0.06; II = 2.0 ± 0.08; III = 1.5 ± 0.05; IV = 1.3 ± 0.04; females: I = 1.5 ± 0.14; II = 2.0 ± 0.03; III = 1.8 ± 0.06; IV = 1.3 ± 0.11).

Pronotum. Trapezoidal, puncturesdenser on posteriorhalf; cicatrices immaculate. Anterior third of anterolateral margins slightly crenulated. Humeral angles acute, but not produced into spines (males pronotum length: 2.7 ± 0.05; females: 2.8; males pronotum width: 7.5 ± 0.25; females: 8.2 ± 0.11).

Scutellum. Apex rounded, punctures uniformly distributed. Scutellum length: males 4.7 ± 0.2; females 4.9 ± 0.06; scutellum width: males 4.5 ± 0.2; females 4.3.

Hemelytra. Wide, almost completely covering connexival segments. Corium uniformly punctured, apical angle rounded and surpassing posterior half of conexivum VII; yellowish callus at apex of radial vein present.

Thoracic venter. Ostiolar rugae attaining nearly ¾ of metapleura width, ostiolar orifice elliptical. Dorsal surface of femur with inconspicuous projection at apex; tibiae dorsally sulcated.

Abdominal venter. Strongly convex; anterior margins of spiraclessurrounded by yellowish callus.

Male genitalia ( Figs. 4-5 , 11-14 ). Pygophore rectangular, 0.1 times longer than wide ( Fig. 5-6 ); dorsal wall with half the length of pygophore. Dorsal rim emarginated medially; lateral third of dorsal rim folded toward the genital chamber; marginal process digitiform ( Fig. 5 ; mp). Posterolateral angles slightly produced. Median excavation of ventral rim U-shaped in ventral view ( Fig. 6 ); infolding of ventral rim with 1+1 darkish process dorsally produced, on the sides of the excavation.

Hypandriumlonger than ventral rim, in abroad laminar-like expansion dorsally; ventrally, with a bilobate process and 1+1 tumescentareas ( Figs. 5-6 ). Apexof parameres elongated and flat at inner surface; apical spine present, medial spineabsent ( Fig. 11 ). Segment Xconstricted medially; basal surface convex, apex ogival ( Fig. 5 ).

Articulatory apparatus about half the length of phallotheca ( Figs. 12-13 ). Phallotheca cylindrical, opening dorso-posteriorly, with two pairs of processes: 1+1 elliptical at base of dorsal wall (= processus phallothecae I) ( Fig. 12 ; ppht I); 1+1 ear-like at postero-lateral angles of ventral wall (= processus phallothecae II) ( Fig. 13 ; ppht II). Conjunctiva reduced, completely obscured by phallotheca. Vesica obovate; basal portion surrounded by a collarlike process ( Fig. 12 ; ve).

Female genitalia ( Figs. 16-17 ). Genital plates hairy. Gonocoxites 8 quadrangular and flat; posterior margin slightly convex; sutural margins divergent at posterior forth ( Fig. 16 ). Apical angles of laterotergites 8 and 9 acute, black in color; laterotergites 9 not surpassing laterotergites 8 in length ( Fig. 16 ). Gonocoxites 9 trapezoidal, posterior margins subrectilinear ( Fig. 16 ). Capsula seminalis subcylindrical ( Fig. 17 ; cs), with three processes variable in length ( Fig. 17 ; pcs): two reaching the free margin of the annular crest, and one surpassing the margin.

Differential diagnosis. This species can be distinguished from other species of Chloropepla by characters of male and female genitalia. In males the parameres with apex elongated; apical spine present, medial spine absent ( Fig. 11 ) and hypandrium with a broad laminar-like expansion dorsally; ventrally, with a bilobate process and 1+1 tumescent areas ( Figs. 5-6 ). The shape of gonocoxites 8 and apex of laterotergites 8 acute ( Fig. 16 ) separate the female of C. stysi sp. nov. from the remaining species.

Etymology. This species is dedicated to Prof. Pavel Štys for his great contribution to the knowledge of the heteropterous insects.

Bionomics. Unknown.

Distribution. Chloropepla stysi sp. nov. is distributed in northern Brazil, in Amazonas state, Coari and Juruá localities.

Figures

Figs. 1-2. 1 – Chloropepla paveli sp. nov. (male holotype). 2 – C. stysi sp. nov. (male holotype). Scale bars = 2 mm.

Figs. 3-6. Male external genitalia. 3-4 – Chloropepla paveli sp. nov., pygophore. 3 – dorsal view; 4 – ventral view. 5-6 – C. stysi sp. nov., pygophore. 5 – dorsal view; 6 – ventral view. Scale bars = 1 mm (dr – dorsal rim; hy – hypandrium; mp – marginal process of dorsal rim; pa – paramere; vr – ventral rim; X – segment X).

Figs. 7-14. Male external and internal genitalia. 7-10 – Chloropepla paveli sp. nov. 7 – right paramere, dorsal view; 8 – phallus, dorsal view; 9 – phallus, ventral view; 10 – phallus, lateral view. Scale bars = 0.5 mm. 11-14 – C. stysi sp. nov. 11 – right paramere, dorsal view; 12 – phallus, dorsal view; 13 – phallus, ventral view; 14 – phallus, lateral view. Scale bars = 1 mm (aa – articulatory apparatus; cj – conjuntiva; dsd – ductus seminis distalis; dsp – ductus seminis proximalis; pht – phallotheca; ppht I – processus phallothecae I; ppht II – processus phallothecae II; ve – vesica; vp – vesica collar process).

Figs. 15-17. Female genitalia. 15 – Chloropepla paveli sp. nov., genital plates. 16-17 – C. stysi sp. nov., female genitalia. 16 – genital plates; 17 – gonocoxites and gonapophyses of ninth segment and ectodermal genital ducts. Scale bars = 1 mm (aac – anterior annular crest; cs – capsula seminalis; ch – chitinellipsen; g9 – gonapophyses 9; gc8 – gonocoxites 8; gc9 – gonocoxites 9; la8 – laterotergites 8; la9 – laterotergites 9; pac – posterior annular crest; pco – pars communis; pi – pars intermedialis; tvi – thickening of vaginal intima; X – segment X).