Tepui Elaenia

Here the details of the Tepui Elaenia named bird below:

SCI Name:  Elaenia olivina
Protonym:  Elainea olivina Ibis p.446
Taxonomy:  Passeriformes / Tyrannidae / Elaenia
Taxonomy Code:  sieela2
Type Locality:  Mt. Roraima, 3,500-6,000 ft., British Guiana [= Venezuela].
Author:  Salvin & Godman
Publish Year:  1884
IUCN Status:  Least Concern

DEFINITIONS

ELAENIA
(Tyrannidae; Ϯ Yellow-bellied Elaenia E. flavogaster) Gr. ελαινεος elaineos  of olive-oil, oleaginous  < ελαια elaia  olive; "Elænia n. g. ⁶)  Musc. pagana Licht.; brevirostris, — modesta, — aurifrons Pr. Max; — Hylophilus cinerascens ejusd.  Numerosæ americanæ, transitum ad Tyrannides præbentes; Fringillis subsimiles.   ...    ⁶) Rostrum crassiusculum, breve, basi dilatatum, altitudine latius; carina dorsali subacuta, sutura recta.  Membrana narium plumulis tecta.  Vibrissæ tenues.  Alæ mediocres vel sub-breves, rotundatæ, remigib. 3-5 reliqvis longioribus.  Pedes mediocres, digitis brevibus, subliberis.  Olivaceæ-cinerascentes; sæpe subtus, interdum vertice flavæ. — Eλαινιος, oleagineus." (Sundevall 1836); "Elaenia Sundevall, 1836, Vetensk. Akad. Handl., 1835, p. 89. Type, by subsequent designation (Gray, 1855, Cat. Gen. Subgen. Birds, p. 49), Muscicapa pagana Lichtenstein = Pipra flavogaster Thunberg." (Traylor in Peters, 1979, VIII, pp. 26-27).  
Var. Elaenea, Elainea, Elainia, Eloenia, Elana, Elania.

olivina / olivinus
Mod. L. olivinus  olivine, olive  < L. oliva  olive.
● "Cinerascenti-olivacea  ... loris, oculorum ambitu, gutture et abdomine medio flavido indutis" (P. Sclater 1864); ex "Tanagra olivina" of Natterer MS (based on a sub-adult bird) (subsp. Schistochlamys melanopis).

SUBSPECIES

Tepui Elaenia (davidwillardi)
SCI Name: Elaenia olivina davidwillardi
davidwillardi
Dr David Ela Willard (b. 1946) US ornithologist, collector (subsp. Elaenia olivina).

Tepui Elaenia (olivina)
SCI Name: Elaenia olivina olivina
olivina / olivinus
Mod. L. olivinus  olivine, olive  < L. oliva  olive.
● "Cinerascenti-olivacea  ... loris, oculorum ambitu, gutture et abdomine medio flavido indutis" (P. Sclater 1864); ex "Tanagra olivina" of Natterer MS (based on a sub-adult bird) (subsp. Schistochlamys melanopis).