The thing about looking for A citronellas (barred Midas) that gets difficult, is that for many years, the "hobby, and ichthyologists perceived "all" the above species as citronellas or labiatus, as the only two species.
When the reality is, any of the 10 species I listed could be called citronellas.
What this ignorance led to, was random hybridization (of all the above), and why we ended up with midevils.
There's a similar problem with what is dubbed the Starry night cichlid.
At first all were thought to be either Paratilapia polleni, or P. bleekeri, but.,,,,,
As ichthyologists delved deeper they realized there are really at least a half dozen Paratilapia species.
To me it doesn't take a rocket scientist to realize the two "starry nights" below aren't the same, but people did.
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Left above is Paratilapia polleni small spot, right is Paratilapia andapa.
The end result being a mixed breed of generic, aquarium strain Paratilapia, called the starry night,
so if an aquarist asks for a species using a common name like Starry night, or Barred Midas this is often "what you get", and there is only a slight chance you will get what you are really asking for..
To many aquarists, this is just semantics, and could care less.
I get the impression from your response, it appears you'd like something more specific.
Same thing will happen if anyone walks into a LFS and asks for a Texas cichlid.
there are half dozen species of Herichthys sold as Texas cichlids, H. cyanoguttatus, H carpintus, H tamosopoensus, H. tepehua and more, a more cognizant LFS might post the term Green Texas, or Blue,, but even those terms are nebulous.
Hopefully if one asks for Herichthys carpintus you could get the one below left, or...if you ask for H. tamasopoensu the species below right.
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Many aquarists complain about the use of scientific names, I see their use as the only way to actually get what you want.