vallensis species-group

Diagnosis. Male. Clypeus with only median tooth. T2 with median depression transverse, elliptical, not so deep, with pair lateral tubercles, tubercles directed to each other.

Remarks. This species-group contains 11 species: D. bifurcatus Azevedo, D. bisserratus Azevedo, D. digitatus Azevedo, D. dilatatus Azevedo, D. planus Azevedo, D. polidentatus Azevedo, D. strictus Azevedo, D. triangularis Azevedo, D. vallensis Evans, D. extrarramis Azevedo and Dissomphalus rosangelae sp. nov., the latter two are recorded from Espírito Santo.

Distribution. It is widespread throughout Neotropical region, ranging from Mexico to South of Brazil, including some Caribbean islands.