Psorus paraensis, Fernandes,Grazia & Lobo, 2008

Fernandes, José Antônio M., Grazia, Jocelia & Lobo, Deise S., 2008, Revision of the genus Psorus Bergroth, 1914 (Hemiptera: Pentatomidae: Discocephalinae), Zootaxa 1696, pp. 48-56 : 51-52

Psorus paraensis sp. nov.

( Figs. 4–11 )

Etymology: the species is named for the type locality.

Type-locality: Brazil: Pará, Belém.

Holotype male with the following labels: a) BRAZIL, Pará, 5 km East of Belém, 22.VIII.1973 b) R. T. Schuh ( MPEG) . Paratypes: 2 females and 2 males, same data as holotype ( AMNH, UFRG) ; Belém, female, 16.I.1963, Pirelli, col. Duret 788/93 ( MNHN) .

Description. Measurements. Body length: 13.0–15.2; head length: 2.8–3.7; head width: 3.2–3.7; pronotum width: 8.5–9.5; pronotum length: 2.7–3.2; abdominal width: 8.8–10.5.

Male. Dorsal rim of pygophore with median third slightly convex. Median margins of posterolateral angles of pygophore conspicuously angulated before apex. Proctiger (segment X) a little shorter than posterolateral angles of pygophore; apex of process of ventral wall truncate. Parameres more visible from dorsal side; in ventral view surpassing middle of proctiger ( Figs. 4–5 ). Lateral margin of parameres indented ( Fig. 7 ). Phallus: phallotheca with three times and a half the length of vesica ( Figs. 8–10 )

Female. Posterior margins of gonocoxites 8 uniformly rounded. Folded areas along lateral margins of gonocoxites 8 and median margins of laterotergites 8 covered by gonocoxites 8 ( Fig. 6 ). Basal half of pars

intermedialis with twice diameter of distal half. Diameter of ductus receptaculi before and after vesicular area almost the same (Fig. 11).

Distribution. Brazil: Pará State.

Figures

FIGURES 4 – 6. Psorus paraensis sp. nov. 4 - 5, Pygophore; dorsal and ventral view respectively; 6, female genital plates. (Scale = 1 mm).

FIGURES 7 – 11. Psorus paraensis sp. nov. 7, Left paramere, latero-ventral view; 8 - 10, Phallus: dorsal, ventral and lateral view respectively; 11, Gonocoxites and gonapophyses of ninth segment and ectodermal genital ducts (bp—basal plates; ch— chitinelipsen; cs— capsula seminalis; dc—dorsal connective; dr— ductus receptaculi; df—distal flange; finger like processes; G 9 — gonapophyses 9; Gc 9 — gonocoxites 9; La 9 — laterotergites 9; pc— processus capitati; pcopars communis; pi— pars intermedialis; pf—proximal flange; ph—phallotheca; sg—secondary gonopore; tp-finger-like processes; tvi—thickening of vaginal intima; v—vesica; va—vesical area; x—segment X. (Scale = 1 mm).