I’m the #1 observer of this species in Costa Rica’s iNaturalist and earlier I had it lumped with the North American Cloudless Sulphur, but someone decided that we are a different subspecies down here and added the “South American” identifier to the common name in both English & Spanish. Today I had 51 photos in my South American Cloudless Sulphur Gallery. (linked) Phoebis sennae.
¡Pura Vida!