Dissomphalus secretus Colombo & Azevedo, sp. nov.

(Figs 17, 34, 163, 164)

Description. Male. Head and mesosoma black; metasoma dark castaneous. Mandible with two apical teeth; clypeus short, median tooth weakly rounded; frons coriaceous, weakly punctate; vertex very rounded in dorsal view. Pronotal disc coriaceous. T2 without depressions, well-defined side pits, circular-shaped, higher edges, tubercle below surface of tergite, many setae at the apex; Posterior hypopygeal margin straight. Genitalia: paramere short in dorsal view, apex serrate and very setay in ventral view, smaller than to basiparamere; aedeagal ventral ramus smaller than dorsal body, base wide, apex pointed, median part with projection, laminar; aedeagal dorsal body with two pairs apical lobes, outer pair with apex weakly rounded, inner pair very membranous; basal process ill defined; basal bar wide; apodeme extending beyond genital ring.

Female unknown.

Variations. Paramere with base longer in dorsal view; dorsal body with apex more rounded.

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 paramere short and aedeagal ventral ramus with median part with projection.

Material examined. Types: Holotype ♂, BRAZIL, E[spírito] S[anto]: Linhares, Cultura de Café, 01.IX.1999, V.L.R.M. Benassi col. (UFES) . Paratypes: 44♂, Linhares, Cultura de Café, 01.IX.1999, V.L.R.M. Benassi col. (UFES) .

Etymology. The epithet secretus refers to the tubercle below surface of tergite in tergal process.

Distribution. Brazil (Espírito Santo).