This
post made by jp80911 in another thread explains it
Technically wild red and super red are the same, as wild reds are wild caught and super reds are also wild caught, so wild red can be super red, it's all up to how the dealer wants to call them.
Super red is the common name used for the fish from Peru, but as dealer can call them whatever they want and you won't really know where it came from unless you put the fish out of the river yourself.
In the end, what I was trying to say is that they are all pygo. nattereri, there's no difference between them other than how they color when they were pull out of the river.
same applies to Terns, just a different color morph of pygocentrus nattereri.
from OPEFE
http://opefe.com/nattereri.html
COMMENTS ABOUT SUPER REDS OR SNAKESKIN Pygocentrus nattereri BY FRANK MAGALLANES
The common name Super Red is meaningless for any specific P. nattereri since these fish can be highly colored in dark red or reddish-orange within its range. The common name has been applied to fish from Peru. A look at the geographical forms of P. nattereri can show that some are more brilliant than others. This color can also be lost during the fishes growth in your aquarium or a dealer's tank as the fish matures. The dealer who coined that name for his fish was probably unaware (at the time) this name could apply to a number of species. It is a relatively new name in the piranha hobby and it is indeed foolish to just attach it to just one locality of P. nattereri.
As for the reticulated P. nattereri, this feature is found on some but not all of the fishes from the middle Amazon. If one wanted to call this a Snakeskin, then that would be fine for a common name so long as the person understands that feature is eventually lost behind the brilliant scales. For some unknown reason, this name was eventually grouped with Super Red. Again its value is a minor concern. The real value in these wild fishes is the fact they are wild and can replenish a diminished gene pool if you are into breeding piranhas. Some people collect solely for their beauty (which is what I do). Others because they are "wild" and in that there is value.
The important thing for everyone to remember is BE INFORMED and don't blame dealers if they use a common name. It's up to you, the consumer, to know the difference.
http://opefe.com/nattereri_2.html