Thinking about the Dorymyrmex in Chile There are a bunch of red and black pyramid ants all up and down the coast and it's really hard to sort them into species. The literature is very confusing and the ants are really good looking.
It might be a species complex where adjacent populations can mix, creating the variation in red and black patterns.
Technically I could just leave right now and walk down there and see them.
It would be a long walk, true.