Chloropepla paveli, 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 : 536-539

Chloropepla paveli sp. nov.

( Figs. 1 , 3-4 , 7-10 , 15 ) Typelocality. Brazil, Tocantins: Palmas, SadoLageado , FazendaCéu. Typematerial. HOLOTYPE:, BRAZIL: ‘ TOCANTINS, Palmas, SadoLageado , FazendaCéu , xi.1992, Exp. MCN- MZSP’ ( MCNZ 6-96 ). PARATYPES : BRAZIL: 2, ‘ RIOGRANDEDONORTE, Natal , iii.1952, M. Alvarenga’ ( FIOC); 1 ♀, ‘ MINAS GERAIS, B[elo] H[orizonte] / Campus UFMG / 3.viii.1978 / Edelberto Dias col.’ ( UFRG) .

Diagnosis. Small size (10-12 mm), general color yellowishin dry preserved specimens; body punctures concolorous. Humeral angles acute, but never produced into spines. Pygophore trapezoidal, dorsal rimstrongly concave; marginal processes of dorsal rim subtriangular, rounded at apex. Hypandrium withan apicalprocess ventrally produced; lateral margins ofhypandrium dorsally produced and slightly extended posteriorly. Paramere cylindrical, elongated, apex slightly spatulated; apical and medial spines present, close to each other at apical third of the outer surface. Segment X ogival, surface of basal two thirds strongly concave. Phallotheca without process. Vesica tubular and narrow. Gonocoxites 8 quadrangular, surface convex; posterior margin slightly convex, apical third of sutural margins divergent. Laterotergites 8 and 9 with apical angles rounded; laterotergites 9 not surpassing laterotergites 8.

Description. General body shape oval ( Fig. 1 ), small in size (male length: 10.4 ± 0.5, width 5.8 ± 0.2; female length: 11.3; width: 6.1).

Coloration. Dry preserved specimens yellowish, probably green in life, punctures concolorous.

Head. Triangular in shape, 0.5 times longer than wide (males head length: 2.1 ± 0,2; female: 2.1 – males head width: 1.7; female: 1.8 – males interocular distance of: 1.5 ± 0.1; female: 1.6). Juga surpassing clypeus, slightly juxtaposed at apex, rounded; lateral margins sinuate. Proportion of antennal segments: I <II <III <IV ≈ V (males antennal segments length: I = 1.0 ± 0.1; II = 1.3 ± 0.1; III = 1.7 ± 0.3; IV = 2.2 ± 0.2; V = 2.1; females: I = 1; II = 0.88; III = 2.08; IV = 2.04). Bucculae evanescent at base of head; anterior angle rounded; first rostral segment slightly surpassing bucculae. Rostrum surpassing metacoxae; proportion of rostral segments: I <II> III> IV (males rostralsegments length: I = 1.0 ± 0.1; II = 1.5; III = 1.3 ± 0.1; IV = 1.1 ± 0.1; female: I = 1.2; II = 1.8; III = 1.4; IV = 1.1).

Pronotum. Trapezoidal, anteriorhalf slightlydeclivent, punctures denser; cicatrices immaculate. Basal two thirds of anterolateral margins crenulated.Anterior margin concave, behind the eyes truncated. Humeral angles acute, but not produced into spines. Pronotum length: males 1.9 ± 0.1; females 2.0; pronotum width: males 5.9 ± 0.2; females 5.8.

Scutellum. Apex rounded; punctures uniformly distributed. Scutellum length: males 3.7 ± 0.2; female: 3.9; scutellum width: males 3.3 ± 0.1; females: 3.4.

Hemelytra. Wide, almost covering connexiva completely. Corium uniformly punctured; apical angle of corium rounded, reaching apex of connexivum VII; yellowish callus at apex of radial vein present.

Thoracic venter. Ostiolar rugae attaining nearly ¾ of metapleura, ostiolar orifice elliptical. Distal spine of dorsal face of femur slightly produced; at least distal ½ of tibiae dorsally sulcated.

Abdominal venter. Slightly convex; anterior margins of spiracles surrounded by yellowish callus.

Male genitalia ( Figs. 3-4 , 7-14 ). Pygophore trapezoidal, dorsal rim strongly concave dorsally ( Fig. 3 ; dr), dorsal wall reduced, more or less ¼ the total length of pygophore. Marginal processes of dorsal rim subtriangular ( Fig. 3 ; mp), rounded at apex. Median excavation of ventral rim V-shaped in ventralview ( Fig. 4 ; vr). Hypandrium moreor less quadrangular, with an apical process ventrally produced; lateral margins of hypandrium dorsally produced and slightly extended posteriorly ( Figs. 3-4 ; hy). Paramere cylindrical, elongated, apex slightly spatulated; apical and medial spines present, close to each other at apical third of the outer surface ( Fig. 7 ). Segment X ogival; surface of basal two thirds strongly concave and with lateral margins carinated ( Fig. 3 ; X).

Articulatory apparatus about half the length of phallotheca ( Figs. 8-9 ; aa). Phallotheca subcylindrical, wideopened dorsally; without process ( Fig. 8 ). Conjuntiva reduced, completely obscured by phallotheca ( Figs. 8-10 ; cj). Vesica tubular, narrow; basal portion surrounded by a collar-like process ( Figs. 8-10 ; ve, vp).

Female genitalia ( Fig. 15 ). Gonocoxites 8 quadrangular and convex; posterior margin slightly convex, apical third of sutural margins divergent ( Fig. 15 ; gc8). Apical angles of laterotergites 8 and 9 rounded ( Fig. 15 ; la8, la9); laterotergites 9 not surpassing laterotergites 8. Gonocoxites 9 trapezoidal, posterior margins concave ( Fig. 15 ; gc9). Female not dissected.

Differential diagnosis. This species can be distinguished from other species of Chloropepla by characters of male and female genitalia. In males the parameres have the apex slightly spatulated; apical and medial spines present, close to each other at apical third of the outer surface ( Fig. 7 ) and hypandrium ismore or less quadrangular, with an apical processventrally produced; lateral margins of hypandrium dorsally produced and slightly extended posteriorly ( Figs. 3-4 ). The shape of gonocoxites 8 and apex of laterotergites 8 not produced into spines ( Fig. 15 ) separate the female of C. paveli 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 paveli sp. nov. is distributed in the north, northeastern and southeastern Brazil, occurring in Tocantins, Rio Grande do Norte and Minas Gerais states ( Fig. 18 ).

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).

Fig.18. Geografical distribution of Chloropepla paveli sp. nov. (●) and C. stysi sp nov. (▲).