These Ardentiella "Tri Colors" and "Dirty Scarlet" isopods look the same. They get their name from the fact they have three colors - Black and Yellow striped with hints of Red, i.e. three colors. Dirty Scarlets are born from Scarlets but happen to turn out looking like a traditional Tri-Color, which happen to be their own species. At BCO Mushi we keep them together so it is unknown which you will get. "Dirty Scarlets" do have the potential to produce scarlets, though it is super rare. Note that the care for these are a bit more involved so we recommend you check out our YouTube videos on our enclosures and care for these isopods:

Ardentiella Enclosure Set-up

Ardentiella Tri Color / Dirty Scarlet FAQ:

Environment: These like to climb, so they need some verticality and need mossy sticks, good ventilation and humidity. 

Food of Preference: Mossy Sticks and ezyeddie.com pod nugz

Behavior: Active species during the day - diurnal 

Rarity: Rare

Care Difficulty: Moderate