Euler's Flycatcher

Here the details of the Euler's Flycatcher named bird below:

SCI Name:  Lathrotriccus euleri
Protonym:  Empidochanes Euleri J.Orn. 16 p.195
Taxonomy:  Passeriformes / Tyrannidae / Lathrotriccus
Taxonomy Code:  eulfly1
Type Locality:  Cantagalo, Rio de Janeiro, Brazil.
Author:  Cabanis
Publish Year:  1868
IUCN Status:  Least Concern

DEFINITIONS

LATHROTRICCUS
(Tyrannidae; Ϯ Euler's Flycatcher L. euleri) Gr. λαθραιος lathraios or (later form) λαθριος lathrios  secret; τρικκος trikkos  unknown small bird. In ornithology triccus signifies tyrant flycatcher; "Lathrotriccus, new genus  Type species. - Empidochanes Euleri Cabanis (1968 [sic]: 195).  ... Etymology. - From a combination of two Greek words, lathrios, meaning secret or hidden (alluding in this instance not to the bird's habits but to its obscurity within the genus Empidonax), and triccus, meaning small bird" (W. Lanyon & S. Lanyon 1986).

euleri
Carl Hieronymus Euler (1834-1901) Swiss settler in Brazil 1853, Vice-Consul in Rio de Janeiro 1867-1901, amateur ornithologist (Coccyzus, Lathrotriccus, syn. Sporophila frontalis).

SUBSPECIES

Euler's Flycatcher (Lawrence's)
SCI Name: Lathrotriccus euleri [flaviventris Group]
LATHROTRICCUS
(Tyrannidae; Ϯ Euler's Flycatcher L. euleri) Gr. λαθραιος lathraios or (later form) λαθριος lathrios  secret; τρικκος trikkos  unknown small bird. In ornithology triccus signifies tyrant flycatcher; "Lathrotriccus, new genus  Type species. - Empidochanes Euleri Cabanis (1968 [sic]: 195).  ... Etymology. - From a combination of two Greek words, lathrios, meaning secret or hidden (alluding in this instance not to the bird's habits but to its obscurity within the genus Empidonax), and triccus, meaning small bird" (W. Lanyon & S. Lanyon 1986).

Euler's Flycatcher (Euler's)
SCI Name: Lathrotriccus euleri euleri/argentinus
LATHROTRICCUS
(Tyrannidae; Ϯ Euler's Flycatcher L. euleri) Gr. λαθραιος lathraios or (later form) λαθριος lathrios  secret; τρικκος trikkos  unknown small bird. In ornithology triccus signifies tyrant flycatcher; "Lathrotriccus, new genus  Type species. - Empidochanes Euleri Cabanis (1968 [sic]: 195).  ... Etymology. - From a combination of two Greek words, lathrios, meaning secret or hidden (alluding in this instance not to the bird's habits but to its obscurity within the genus Empidonax), and triccus, meaning small bird" (W. Lanyon & S. Lanyon 1986).