Empidonax Occidentalis Bird

English Name:  Cordilleran Flycatcher
Latin Name:  Empidonax occidentalis
Protonym:  Empidonax bairdi occidentalis Auk 14 p.53
Taxonomy:  Passeriformes / Tyrannidae / Empidonax
Taxonomy Code:  corfly
Type Locality:  Pluma, Oaxaca, Mexico.
Author:  Nelson
Publish Year:  1897
IUCN Status:  Least Concern

DEFINITIONS

EMPIDONAX
(Tyrannidae; Ϯ Acadian Flycatcher E. virescens) Gr. εμπις empis, εμπιδος empidos  gnat, mosquito; αναξ anax, ανακτος anaktos  lord, master (cf. ναξω naxō  will squeeze  < νασσω nassō  to squeeze (Merriam 1884)); "74. Empidonax pusillus Cab.  Tyrannula pusilla Sws. — Myiobius pusillus Gray.    Muscicapa pusilla Lembeye. — Moscarita olivada.  Dieser Vogel wurde in Habana auf einem platten Dache todt gefunden.   ...   Die Gattung Empidonax umfasst kleinere und zierlichere Arten, mit schwächerem, weniger entwickeltem Schnabel. Die Flügel sind von mittelmässiger Länge, verhältnissmässig spitzer und länger als bei Myiarchus, jedoch kürzer und weniger zugespitzt als bei Contopus; die Läufe sind verhältnissmässig höher; der Schwanz ist schwach ausgerandet." (Cabanis 1855); "Empidonax Cabanis, 1855, Journ. f. Ornith., 3, p. 480. Type, by monotypy, Empidonax pusillus Cabanis = Platyrhynchus virescens Vieillot." (Traylor in Peters, 1979, VIII, pp. 135-136).   
Var. Emipdoanx.   
Synon. Cnemonax, Muscaccipiter.

occidentale / occidentalis
L. occidentalis  western  < occidens, occidentis  west  < occidere  to set. This toponym was frequently given to taxa discovered in locations west of previously known populations.
● Cocal, Western Andes, Colombia (Dysithamnus).
● Jamaica; ex “Onocrotalus” or “Pelecanus fuscus” of Sloane 1725, “Pelican of America” of Edwards 1747, and “Pelecanus” of Browne 1756 (Pelecanus).
● TL. Day Dawn, Western Australia; "Westralian Wedgebill" (Mathews 1912) (Psophodes).

SUBSPECIES

Cordilleran Flycatcher (hellmayri)
Latin Name: Empidonax occidentalis hellmayri
hellmayri
Carl Eduard Hellmayr (1878-1944) Austrian/US ornithologist (subsp. Accipiter fasciatus, subsp. Anthoscopus caroli, Anthus, subsp. Attila rufus, subsp. Campylorhamphus trochilirostris, subsp. Catharus fuscater, subsp. Celeus elegans, syn. Chloroceryle americana cabanisii, Cinnyris, syn. Conopophaga lineata, Cranioleuca, syn. Crypturellus strigulosus, subsp. Cyanerpes caeruleus, subsp. Dendrocincla tyrannina, Drymophila, subsp. Empidonax occidentalis, subsp. Geositta cunicularia, syn. Geositta rufipennis fasciata, subsp. Hemithraupis flavicollis, subsp. Isleria hauxwelli, subsp. Lepidocolaptes angustirostris, subsp. Leptopogon superciliaris, subsp. Leptotila rufaxilla, Mecocerculus, subsp. Myioborus miniatus, subsp. Myiozetetes cayanensis, syn. Nonnula rubecula, subsp. Oenanthe familiaris, syn. Petronia petronia, subsp. Piaya cayana, syn. Pitangus sulphuratus, subsp. Poecile palustris, subsp. Pyriglena leuconota, subsp. Rhynchocyclus brevirostris, subsp. Saltator aurantiirostris, syn. Selenidera gouldii, subsp. Sporophila caerulescens, Synallaxis, subsp. Tanygnathus megalorhynchos, subsp. Terenotriccus erythrurus, syn. Thamnophilus schistaceus dubius, subsp. Tyto alba, subsp. Xenops tenuirostris).

Cordilleran Flycatcher (occidentalis)
Latin Name: Empidonax occidentalis occidentalis
occidentale / occidentalis
L. occidentalis  western  < occidens, occidentis  west  < occidere  to set. This toponym was frequently given to taxa discovered in locations west of previously known populations.
● Cocal, Western Andes, Colombia (Dysithamnus).
● Jamaica; ex “Onocrotalus” or “Pelecanus fuscus” of Sloane 1725, “Pelican of America” of Edwards 1747, and “Pelecanus” of Browne 1756 (Pelecanus).
● TL. Day Dawn, Western Australia; "Westralian Wedgebill" (Mathews 1912) (Psophodes).