This is a copy and paste from a recent post by Ruffing’s Ranitomeya, but should cover the extent of the Ranitomeya genus and current taxonomy.
Ranitomeya revision summary
After some reading and discussion with others, I finalized a summary of the taxonomic revisions from the recent Ranitomeya research paper. Feel free to screenshot and save this resource.
To add, after reading the paper a few times there multiple interesting developments and theories. More taxonomic changes could be on their way as this genus is better understood. 
• Ranitomeya amazonica
• Research summary: R. amazonica from French Guiana and eastern Brazil as R. variabilis.
• Hobby implication: R. amazonica “French Guiana” is now R. variabilis “French Guiana”
• Ranitomeya benedicta
• Research summary: no taxonomic changes
• Hobby implication: no change
• Ranitomeya cyanovittata
• Research summary: no taxonomic changes
• Hobby implication: not represented in the hobby
• Ranitomeya defleri
• Research summary: no taxonomic changes
• Hobby implication: not represented in the hobby
• Ranitomeya fantastica
• Research summary: individuals previously assigned to R. fantastica from the lower Huallaga River populations at Boca Toma and Pongo Isla in Peru are actually are now R. summersi
• Hobby implication: R. fantastica “Reticulated” and “White Banded” changed to R. summersi “Reticulated” and “White Banded.”
• Ranitomeya flavovittata
• Research summary: no taxonomic changes
• Hobby implication: no change
• Ranitomeya imitator
• Research summary: no taxonomic changes
• Hobby implication: no change
• Ranitomeya reticulata
• Research summary: no taxonomic change
• Hobby implication: no change
• Ranitomeya sirensis
• Research summary: no taxonomic changes
• Hobby implication: no change
• Ranitomeya summersi
• Scientifically: individuals previously assigned to R. fantastica from the lower Huallaga River populations at Boca Toma and Pongo Isla in Peru are actually are now R. summersi
• Hobby: R. fantastica “Reticulated” and “White Banded” changed to R. summersi “Reticulated” and “White Banded.”
• Ranitomeya toraro
• Research summary: no taxonomic changes
• Hobby implication: not represented in the hobby
• Ranitomeya aff. uakarii
• Research summary: additional investigation to raise to species status
• Hobby implication: not represented in the hobby
• Ranitomeya uakarii
• Research summary: recovered as paraphyletic with R. uakarii “Toraro” morph considered R. aff. uakarii
• Hobby implication: no change
• Ranitomeya vanzolinii
• Research summary: no taxonomic changes
• Hobby implication: no change
• Ranitomeya variabilis
• Research summary: R. amazonica from French Guiana and eastern Brazil as R. variabilis.
• Hobby implication: R. amazonica “French Guiana” is now R. variabilis “French Guiana”
• Ranitomeya ventrimaculata
• Research summary: no taxonomic change
• Hobby implication: no change
• Ranitomeya yavaricola
• Research summary: no taxonomic change
• Hobby implication: not represented in the hobby
I will add other information for the other genus of dart frogs later on as I gather up what data I have and fill in any blanks.