Gray-headed Tanager

Here the details of the Gray-headed Tanager named bird below:

SCI Name:  Eucometis penicillata
Protonym:  Tanagra penicillata Av.Sp.Nov.Brasil. 2 p.36 pl.49 fig.1
Taxonomy:  Passeriformes / Thraupidae / Eucometis
Taxonomy Code:  grhtan1
Type Locality:  no locality ; Fonteboa, Amazonas [= Fonte Boa, Rio Solimoes, Brazil] suggested by Berlepsch, 1908, Novit. Zool., 15, p. 117.
Author:  von Spix
Publish Year:  1825
IUCN Status:  Least Concern

DEFINITIONS

EUCOMETIS
(Thraupidae; Ϯ Grey-headed Tanager E. penicillata) Gr. ευκομης eukomēs  lovely-haired  < ευ eu  fine, good; κομη komē  hair; "Genus XVIII. EUCOMETIS.  Comarophagus, Bp. Compt. Rend. xxxii. p. 81 (nec Boié).   Rostrum Tachyphoni sed commissura vix sinuata: alæ elongatæ, remigibus tertia, quarta et quinta longissimis: cauda elongata, rotundata: ptilosis olivacea: sexus similes.   1. EUCOMETIS PENICILLATA.  Tanagra penicillata, Spix, Av. Bras. ii. p. 36. pl. 49. fig. 1.  ... This seems to be the species of this curious form which has the crest most developed, and from its locality the most likely to be what Spix intended for his Tanagra penicillata.  ...  2. EUCOMETIS ALBICOLLIS.  Pyranga albicollis, Lafr. et d'Orb. Syn. An. in Mag. de Zool. 1837, p. 33  ...  3. EUCOMETIS CRISTATA.  Pipilopsis cristata, DuBus, Bull. Ac. Brux. xxxii. p. 154 (1855)." (P. Sclater 1856); "Eucometis P. Sclater, 1856, Proc. Zool. Soc. London, XXIV, p. 117.  New name for Comarophagus Bonaparte, 1851, preoccupied by Comarophagus Boie, 1826." (JAJ 2021). 
Var. Eucometes, Eucometus.   
Synon. Comarophagus.

penicillata / penicillatus
Mod. L. penicillatus  with brush-like tufts  < L. penicillus  brush  < dim. peniculus  brush  < penis  tail.
● ex “Yellow-eared Bulbul” of Jerdon 1844 (Pycnonotus).

SUBSPECIES

Gray-headed Tanager (Gray-crested)
SCI Name: Eucometis penicillata [spodocephalus Group]
EUCOMETIS
(Thraupidae; Ϯ Grey-headed Tanager E. penicillata) Gr. ευκομης eukomēs  lovely-haired  < ευ eu  fine, good; κομη komē  hair; "Genus XVIII. EUCOMETIS.  Comarophagus, Bp. Compt. Rend. xxxii. p. 81 (nec Boié).   Rostrum Tachyphoni sed commissura vix sinuata: alæ elongatæ, remigibus tertia, quarta et quinta longissimis: cauda elongata, rotundata: ptilosis olivacea: sexus similes.   1. EUCOMETIS PENICILLATA.  Tanagra penicillata, Spix, Av. Bras. ii. p. 36. pl. 49. fig. 1.  ... This seems to be the species of this curious form which has the crest most developed, and from its locality the most likely to be what Spix intended for his Tanagra penicillata.  ...  2. EUCOMETIS ALBICOLLIS.  Pyranga albicollis, Lafr. et d'Orb. Syn. An. in Mag. de Zool. 1837, p. 33  ...  3. EUCOMETIS CRISTATA.  Pipilopsis cristata, DuBus, Bull. Ac. Brux. xxxii. p. 154 (1855)." (P. Sclater 1856); "Eucometis P. Sclater, 1856, Proc. Zool. Soc. London, XXIV, p. 117.  New name for Comarophagus Bonaparte, 1851, preoccupied by Comarophagus Boie, 1826." (JAJ 2021). 
Var. Eucometes, Eucometus.   
Synon. Comarophagus.

Gray-headed Tanager (Gray-headed)
SCI Name: Eucometis penicillata [penicillata Group]
EUCOMETIS
(Thraupidae; Ϯ Grey-headed Tanager E. penicillata) Gr. ευκομης eukomēs  lovely-haired  < ευ eu  fine, good; κομη komē  hair; "Genus XVIII. EUCOMETIS.  Comarophagus, Bp. Compt. Rend. xxxii. p. 81 (nec Boié).   Rostrum Tachyphoni sed commissura vix sinuata: alæ elongatæ, remigibus tertia, quarta et quinta longissimis: cauda elongata, rotundata: ptilosis olivacea: sexus similes.   1. EUCOMETIS PENICILLATA.  Tanagra penicillata, Spix, Av. Bras. ii. p. 36. pl. 49. fig. 1.  ... This seems to be the species of this curious form which has the crest most developed, and from its locality the most likely to be what Spix intended for his Tanagra penicillata.  ...  2. EUCOMETIS ALBICOLLIS.  Pyranga albicollis, Lafr. et d'Orb. Syn. An. in Mag. de Zool. 1837, p. 33  ...  3. EUCOMETIS CRISTATA.  Pipilopsis cristata, DuBus, Bull. Ac. Brux. xxxii. p. 154 (1855)." (P. Sclater 1856); "Eucometis P. Sclater, 1856, Proc. Zool. Soc. London, XXIV, p. 117.  New name for Comarophagus Bonaparte, 1851, preoccupied by Comarophagus Boie, 1826." (JAJ 2021). 
Var. Eucometes, Eucometus.   
Synon. Comarophagus.