Chestnut-backed Sparrow-Weaver

Here the details of the Chestnut-backed Sparrow-Weaver named bird below:

SCI Name:  Plocepasser rufoscapulatus
Protonym:  Plocepasser rufoscapulatus NotesLeydenMus. 10 p.238 pl.9 fig.2
Taxonomy:  Passeriformes / Ploceidae / Plocepasser
Taxonomy Code:  cbswea1
Type Locality:  Kasinga River, South Angola.
Author:  Büttikofer
Publish Year:  1888
IUCN Status:  Least Concern

DEFINITIONS

PLOCEPASSER
(Ploceidae; Ϯ White-browed Sparrow Weaver P. mahali) Portmanteau of genera Ploceus Cuvier 1816, weaver, and Passer Brisson 1760, sparrow; "Sub-genus PLOCEPASSER.*  Bill conical, pointed; culmen arched and entering between feathers of forehead; edges of upper mandible slightly waved; nostrils basal, rounded, and open; rictus slightly bristled; wings rather long, third and fourth quills equal; tail slightly rounded; tarsi moderate, outer and inner toes of equal length; claws slightly curved and rather blunt.    Plocepasser Mahali.  ...  Inhabits the country between the Orange River and the Tropic.  ...  * The Ploceus superciliosus, of Ruppel, may perhaps belong to this group." (A. Smith 1836); "Plocepasser A. Smith, 1836, Rep. Exped. Cent. Africa, p. 51. Type, by monotypy, P. mahali A. Smith." (Moreau in Peters 1962, XV, 5).   
Var. Ploceopasser, Ploceipasser, Ploceuspasser.   
Synon. Agrophilus, Fullerellus, Leucophrys, Philagrus.

rufoscapulatus
L. rufus  rufous; Mod. L. scapulatus  shouldered  < Late L. scapula  shoulder  < L. scapulae shoulders.