One might assume that the Universal Translator would have a set policy for avoiding conflicts and confusion of this sort - which in practice might mean referring to a species as well as their homeworld and language by the human name of their star, since in theory the star names would be unconflicted.
This would explain things like Deltans or Sheliak just fine - while a select few species, either encountered early on before the introduction of the UT or then allowed to educate the world as to their indigenous naming systems, would form an acceptable exception. But this would also sort of imply that there would be only one Krios where Kriosians lived and spoke Kriosian...
Timo Saloniemi
This would explain things like Deltans or Sheliak just fine - while a select few species, either encountered early on before the introduction of the UT or then allowed to educate the world as to their indigenous naming systems, would form an acceptable exception. But this would also sort of imply that there would be only one Krios where Kriosians lived and spoke Kriosian...
Timo Saloniemi