Revision of Beardius Reiss et Sublette, 1985 (Diptera: Chironomidae), with the description of twenty new species Author Pinho, Luiz Carlos luiz.pinho@ufsc.br Author Mendes, Humberto Fonseca humberto.mendes@ufabc.edu.br Author Andersen, Trond luiz.pinho@ufsc.br text Zootaxa 2013 2013-12-02 3742 1 1 78 http://dx.doi.org/10.11646/zootaxa.3742.1.1 journal article 10.11646/zootaxa.3742.1.1 1175-5326 5270890 78959DF2-CFF7-442A-B7B3-0B1A053A4D73 Beardius fittkaui Pinho, Mendes et Andersen Beardius fittkaui Pinho, Mendes et Andersen, 2009: 258 . Material examined. Type material as in Pinho et al. (2009) . Diagnostic characters. The species belongs in the truncatus group. The male can be separated from all other members of the genus by the combination of the following characters: acrostichals present; and median volsella at apex of subtriangular projection of inferior volsella. The pupa by: tergite II with stronger shagreen orally; tergite VI with shagreen in anterior 2/3; tergites VII and VIII without shagreen; paratergite VIII with long spines; anal spur of tergite VIII with minute accessory teeth; and conjunctive IV/V with spinules in a single patch. Description. The male was described in detail by Pinho et al. (2009) . The structure considered to be the “median volsella” by Pinho et al. (2009) must be regarded as a basal subtriangular lobe of the inferior volsella while the 2–3 setae situated on the apex of this projection the wart-like median volsella. Distribution. The species is recorded from the Amazonas State in Brazil ( Pinho et al. 2009 ).