Fork-tailed Pygmy-Tyrant

Here the details of the Fork-tailed Pygmy-Tyrant named bird below:

SCI Name:  Hemitriccus furcatus
Protonym:  T[odirostrum] furcatum Rev.Zool. 9 p.362
Taxonomy:  Passeriformes / Tyrannidae / Hemitriccus
Taxonomy Code:  fotpyt1
Type Locality:  Brazil; restricted to Rio de Janeiro by Pinto, 1944, Cat. Aves Brasil (Publ. Dept. Zool., Sao Paulo), pt. 2, p. 237.
Author:  Lafresnaye
Publish Year:  1846
IUCN Status:  Vulnerable

DEFINITIONS

HEMITRICCUS
(Tyrannidae; Ϯ Drab-breasted Bamboo Tyrant H. diops) Gr. ἡμι- hēmi-  small  < ἡμισυς hēmisus  half; τρικκος trikkos  unidentified small bird. In ornithology triccus signifies tyrant flycatcher; "PHYLLOSCARTES   ...   In ihre Nähe würden zu stellen sein die Genera:  Hemitriccus Nob. (von ἡμι, halb und τρικκος = Todus).  (Musciphaga (!) Less. 1831).  Von Euscarthmus durch längere Flügel, stärken und breitern Schwanz und grössere Entwickelung der Bartborsten verschieden:   H. diops. — Muscicapa diops "Natt." Temm. Pl. col. 144.1. — Todirostrum diops Lafr. R. Z. 1846. p. 365. 13. — Euscarthmus vilis Burm. Th. Bras. II. p. 490. — Muscicapa vilis Licht. in Mus. Berol. (Brasilien)." (Cabanis & Heine 1859); "Hemitriccus Cabanis and Heine, 1859, Museum Heineanum, II, p. 52.  New name for Musciphaga Lesson, 1837, considered barbarous." (JAJ 2021).
Var. Hemitriscus.   
Synon. Andinotriccus, Bornscheinia, Campina, Ceratotriccus, Euscarthmornis, Idioptilon, Inambariornis, Microcochlearius, Musciphaga, Snethlagea, Todirhamphus.

furcatum / furcatus
Med. L. furcatus  forked  < L. furca  two-pronged fork  < ferre  to tend.
● ex “Mouette à queue fourchue” of Néboux, 1840 (Creagrus).
● ex “Icterus cauda bifida” of Brisson 1760, and “Fork-tailed Oriole” of Latham 1782 (?Dicrurus sp.).
● ex “Swallow-tail’d Hawk” of Catesby 1731 (syn. Elanoides forficatus).
● ex “Fork-tail Petrel” of Pennant 1785, and Latham 1785 (Hydrobates).