Dissomphalus cacirus Colombo & Azevedo, sp. nov.

(Figs 15, 32, 158, 159)

Description. Male. Head and mesosoma black; metasoma dark castaneous. Head. Mandible with two apical teeth; median clypeal lobe subtrapezoidal, median tooth weakly rounded; Frons weakly coriaceous, weakly punctate; vertex rounded in dorsal view. Pronotal disc coriaceous. T2 without depressions, well-defined side pits, circularshaped, higher edges, tubercle below surface of tergite, many setae at apex. Posterior hypopygeal margin weakly concave. Genitalia: paramere wide in dorsal view, curved in ventral view, apex rounded, slightly arched, base with wide projection, larger than to basiparamere; basivolsella wide; cuspis wide; digitus short; aedeagal ventral ramus smaller than dorsal body, base narrow, rounded, apex narrow, weakly rounded, laminar; aedeagal dorsal body with one pair of apical lobes, apex rounded, inner pair weakly membranous; basal process ill defined; apodeme not extending beyond genital ring. Female unknown.

Remarks. This species is allocated in secretus species-group by having the tergal process with lateral depressions or not, with well-defined side pits, circular-shaped, higher edges, with a tubercle below the surface of tergite, many setae at the apex, with bristles on the edge of the depressions or not. This species not is similar other of species-group. This species is mainly different because has the genitalia with digitus short and aedeagal dorsal body with one pair of apical lobes.

Material examined. Types: Holotype ♂, BRAZIL, Espírito Santo: Santa Maria de Jetibá, Fazenda Clarindo Kruguer, 20º04’S 40º44’W, 06–13.XII.2002, armadilha Malaise, Tavares & Azevedo e eq[uipe] col. (UFES) . Paratypes: 1♂, Santa Maria de Jetibá, Fazenda Clarindo Kruguer, 20º04’S 40º44’W, 06–13.XII.2002, armadilha Malaise, Tavares & Azevedo e eq[uipe] col. (UFES).

Etymology. The epithet cacirus refers the wasp in Tupi-Guarani.

Distribution. Brazil (Espírito Santo).