The problems with Polypedilum Kieffer (Diptera: Chironomidae), with the description of Probolum subgen. n. Author Saether, Ole A. Author Andersen, Trond Author Pinho, Luiz C. Author Mendes, Humberto F. text Zootaxa 2010 2497 1 36 journal article 10.5281/zenodo.195747 c371f527-f7c6-456b-ab07-5bef541b10e6 1175-5326 195747 Polypedilum (Probolum) excelsius Townes sensu Grodhaus et Rotramel Polypedilum pedatum excelsius Townes sensu Grodhaus et Rotramel, 1980 : 70 . Diagnostic characters. The pupa differs from that of P. (Pr.) marcondesi by having more extensive shagreen including shagreen spinules anterior on tergite VIII and on sternites VI–VIII. The larva has an AR of about 1.4 against 1.0– 1.1 in P. (Pr.) marcondesi and the distance between the ventromental plates is about as long as the four median teeth combined, while it is clearly less than the width of the four median teeth combined in P. (Pr.) marcondesi . Description. The immatures are described in detail by Grodhaus and Rotramel (1980) .