Dissomphalus vampirus Azevedo 2003, sp. nov.

Dissomphalus vampirus sp. nov. (Figs. 63–66)

Description. — Male. Body length 5.5 mm; LFW 4.0 mm. Color: head and mesosoma black; metasoma, clypeus and antennae dark castaneous, scape lighter; mandible castaneous; palpi and legs light castaneous; wings subhyaline.

Head: mandible bidentate. Clypeus trapezoidal. First four antennal segments in a ratio of 22:7:6:7, segment XI 1.85 X as long as broad, sensillae conspicuous. Frons strongly coriaceous, punctures inconspicuous, shallow, separated by 0.5–1.5 X their diameters. LH 1.0 X WH; WF 0.6 X WH; 1.28 X HE; OOL 1.72 X WOT; DAO 0.4 X WOT; posterior ocelli distant from the vertex crest 1.83 X DAO, frontal angle of ocellar triangle acute. Vertex straight, corners rounded. VOL 0.56 X HE.

Mesosoma: thorax coriaceous as frons. Pronotal disc 0.69 X length of mesoscutum. Propodeal disc 0.6 X as long as wide. Fore femur 2.69 X as long as thick.

Metasoma: tergite II with pair of elliptical pits, distant each other 4.09 X their length, distant from posterior margin of tergite I 0.27 X their length, closer to the lateral margin than the middle, inner part of each pit covered by translucid sclerite, so that the hole is hemispheric. Hypopygium with median stalk 2.0 X as long as plate, posterior margin slightly concave. Genitalia (Figs. 63–64): paramere much longer than basiparamere, apex rounded, narrower than base, dorsal and ventral margin straight; aedeagus with ventral ramus little shorter than dorsal body, laminar, surface vertical, inner margin concave below the rounded apex, which is slightly directed downward, outer surface of apex with triangular stout expansion at dorsal margin directed down and outward; dorsal body with two pairs of apical lobes, outer pair laminar, surface vertical, with rounded apex in lateral view, ventral margin serrated, dorsal margin convex and directed inward, inner surface with anterior apical tooth directed downward (Figs. 65–66), inner pair small, membranous and hairy; basal process with small median tooth; apodeme extending beyond the elliptical genital ring.

Material examined. — HOLOTYPE: male, BRAZIL, Amazonas, Manaus, Reserve Ducke, 15.IV.1992, glue trap, 1 m, Vidal & Vidal col. (INPA). PARATYPES: BRAZIL, Amazonas, Manaus, 1 male, Reserve 1208, 3 males, Reserve 1210, 2 males, Reserve 1310, 24.X.1985 – 31.VII.1986, Malaise trap, B. Klein col. (INPA); 1 male, same data as holotype except 2–4.X.1991 (INPA); 1 male, Reserve Ducke, 25.IV.1978, CDC light trap, J. Arias col. (INPA); 1 male, Reserve Ducke, 3.VIII.1983, N. Johnson col. (OSUC); 1 male, VI.1972, F.M. Oliveira col. (PMAE).

Variation. — Body dark castaneous.

Etymology. — The specific epithet refers to the teeth of outer lobe of aedeagus.

Distribution. — Brazil (Amazonas).