No one is saying the female isn't a nice looking fish, only that if one is attempting to breed a pure line of citrinellus, it's best to breed fish whose provenance lead back to the same collection location.
I would think that would hold true for any species of fish where different geographical variants are involved.
Genetic testing will shed light on all of these questions about Midas vs. Red Devils and Amph Sp. hybids.
The amphilophus genus has been studied extensively for decades, and genetic testing has already answered a lot of the questions about many of the species found within this genus. We know that citrinellus collected at one location, can vary greatly from those collected at another location in a different crater lake. Sometimes even within the same lake. This is based on real science, most of it taking place within the last decade, not hearsay or speculation. Not only can their physical characteristics differ, such as body shape, length, jaw/head size, etc, but their genetic make up can also vary. Same species, but they have evolved under different conditions which has affected some of their physcial characteristics.
While there is always chance for human error, the local people who collect these fish in the wild know these bodies of water like the back of their hands. They know the best places to collect citrinellus in Lake Managua, labitaus in Lake Nicaragua, etc.
You don't need to perform DNA tests to understand that all of the fish in the link below are A. citrinellus, where the F0's were all collected in the same body of water. (Lake Managua)
http://www.monsterfishkeepers.com/f...s-photographic-library-of-wild-midas-cichlids
Ditto to the labiatus shown in the link below, which were collected in Lake Nicaragua.
http://www.monsterfishkeepers.com/f...apps-photographic-library-of-wild-red-devils&
No one that owns one of those fish needs to ask the age old question, "is this a midas, or a red devil?".