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.