Please first read the evidences found in the biodiversity literature before you make the judgment about whether this name is a taxonomic name or not.
Cacicus persicus, Scl. & Salv. P. Z. S. 1864, p. 35312 (nec Linn.).
it stood either as the old well-known C. persicus or its synonym, C. icteronotus; as C. chrysonotus of Peru and Bolivia, or as a distinct species, C. vitellinus. It ultimately proved to be inseparable from a species of Western Ecuador described by Mr. Sclater in 1860 under the specific name it now bears1. It has since been traced further along this coast to Western Peru6 and into the Magdalena2 and Cauca3 valleys of Colombia. In the State of Panama we have no tidings of it beyond the line of railway.
The bird most nearly allied to C. flavicrissus is certainly C. persicus, but it may readily be distinguished by the amount of yellow on the tail, which in the former occupies less than half, and in the latter nearly two thirds of the base of the rectrices.