Chestnut-backed Tanager

Here the details of the Chestnut-backed Tanager named bird below:

SCI Name:  Stilpnia preciosa
Protonym:  C.[allispiza] preciosa Mus.Hein. 1 p.27
Taxonomy:  Passeriformes / Thraupidae / Stilpnia
Taxonomy Code:  chbtan1
Type Locality:  Rio Grande [do Sul, Brazil].
Author:  Cabanis
Publish Year:  1851
IUCN Status:  Least Concern

DEFINITIONS

Stilpnia
(syn. Tangara Ϯ Black-headed Tanager T. cyanoptera) Gr. στιλπνος stilpnos  glistening, glittering  < στιλπνοω stilpnoō  to polish; "32. Stilpnia, new genus (Fig. 5).   Type species. Aglaia cyanoptera Swainson, 1834 (currently recognized as Tangara cyanoptera).  ...  Etymology. The name, feminine in gender, is derived from the Greek στιλπνη, the feminine form of the adjective meaning "glittering" or "glistening," alluding to the glossiness of the plumage of these colorful tanagers.  Comments. Euschemon Sclater, 1851 (type species Tanagra flava Gmelin, 1789, currently Tangara cayana flava), is preoccupied by Euschemon Doubleday, 1846, the name of an Australian butterfly, and so not available" (Burns et al. 2016) (OD per Richard Klim).

preciosa
L. pretiosus  precious, costly  < pretium  value.
● ex “Lindo précieux” of de Azara (ed. Sonnini) 1809 (Tangara).