Within Dendrobatidae, many former Colostethus species were moved to Hyloxalus, while three were moved to the new genus Silverstoneia.
Before the revision, it had 138 species, but this was reduced to 18 species, after species of the former Colostethus were distributed among eight genera in two families, that is, in Dendrobatidae and in the newly established family Aromobatidae (e..g., Anomaloglossus).