Abstract
Rubicundula placibilis, gen. nov. is described from an affluent of Rio Carolina (El Dorado, Prov. Esmeraldas). Diagnostic features of the new taxon are the laminar medial protrusions of first coxae covering the lateral margins of the gnathosomal bay, the elongated genital field with anteriorly pointed genital flaps, and the presence of more than 80 acetabula arranged on longitudinal stripes along the gonopore. Further characteristics of the new taxon are: Dorsal shield with a pair of lateral stures anteriorly turned backwards and approximating the median line, lateral eyes fused with the ventral shield, fourth legs with well-developed claws. Due to the unique character set of the new taxon it is difficult to hypothesize its phylogenetical relationships with other genera of the family Anisitsiellidae.
