Well part of the problem is the fact up until 1989 or so, S. leucosticta was considered just a color form of S. jurupari, not a seperate species despite orginally being described seperately. When Kullander reconstructed the Satanoperca genus, he elavated S. leucosticta back to species status.
You would think 20 years would be long enough for a common name to change, but in the 30+ years since saums and mayans took over for riv's and festae, they are still called green and red terrors in most lfs ... so 20 years really isn't all that long.
The spotted Satanoperca at least around here seemed to be named correct, ie S. daemon but most of the nonspotted ones (S. jurupari, S. leucosticta, S. mapiritensis) except S. pappaterra are sold as 'jurupari' or sometimes just 'eartheater.'