Dissomphalus spinosus Azevedo 2003, sp. nov.

Dissomphalus spinosus sp. nov. (Figs. 60–62)

Description. — Male. Body length 3.5 mm; LFW 2.58 mm. Color: head and mesosoma black; metasoma and clypeus dark castaneous; antenna, mandible and legs castaneous, distal flagellomeres darker; palpi light castaneous; wings subhyaline.

Head: mandible bidentate. Clypeus trapezoidal. First four antennal segments in a ratio of 15:6:5:6, segment XI 2.0 X as long as broad. Frons strongly coriaceous, punctures large, shallow, separated by 0.2–1.0 X their diameters. LH 1.03 X WH; WF 0.55 X WH; 1.1 X HE; OOL 1.13 X WOT; DAO 0.32 X WOT; posterior ocelli distant from the vertex crest 2.0 X DAO, frontal angle of ocellar triangle acute. Vertex straight, corners rounded. VOL 0.52 X HE.

Mesosoma: thorax coriaceous and punctated as frons. Pronotal disc 0.73 X length of mesoscutum. Propodeal disc 0.59 X as long as wide. Fore femur 2.7 X as long as thick.

Metasoma: tergite II with pair of subcircular sublateral depressions, with some outer setae, distant from posterior margin of tergite I 0.5 their diameter, distant each other 2.0 X their width, each one with tubercle flat­topped placed near the inner margin of depression, with pit on the top, with dense tuft of hairs. Hypopygium with median stalk 2.0 X as long as plate, posterior margin straight. Genitalia (Fig. 60–61): paramere with apex slightly arched inward, dorsal margin straight, ventral margin straight below and concave apically; aedeagus with ventral ramus as long as dorsal body, laminar, surface vertical and convex, apex somewhat rounded in lateral view (Fig. 62); dorsal body with three pairs of apical lobes, outer pair laminar, surface vertical, with apex strongly curved downward, apical margin strongly serrated (Fig. 62), inner pairs stout, membranous and hairy, being the dorsal one smaller; basal processes with pair of projections, each one with two long and sharpened teeth, apodeme extending beyond the elliptical genital ring.

Material examined. — HOLOTYPE: male, BRAZIL, Paraná, Jundiaí do Sul, Monte Verde Farm, 26.X.1987, Malaise trap, Profaupar survey (DZUP). PARATYPES: BRAZIL, 2 males, same data of holoype, except 14.XII.1987 – 11.IV.1988 (DZUP).

Etymology. — The specific epithet refers to the spinose basal processes of aedeagus.

Distribution. — Brazil (Paraná).