Penelope obscura Temminck, 1815

Evangelista-Vargas, Oscar Diego & Silveira, Luís Fábio, 2018, Morphological evidence for the taxonomic status of the Bridge’s Guan, Penelope bridgesi, with comments on the validity of P. obscura bronzina (Aves: Cracidae), Zoologia (e 12993) 35, pp. 1-10 : 8-9

publication ID	https://doi.org/ 10.3897/zoologia.35.e12993
publication LSID	lsid:zoobank.org:pub:C4A2862F-20E9-47CE-AA81-AE74C6AFEC84
DOI	https://doi.org/10.5281/zenodo.13175440
persistent identifier	https://treatment.plazi.org/id/844487E2-086D-0B58-6ECB-FC85FA16EC01
treatment provided by	Felipe
scientific name	Penelope obscura Temminck, 1815
status

Treatment

Penelope obscura Temminck, 1815 View in CoL

Holotype. The description of the species is based on the ‘ Yacuhú’, made by Azara (1805). Type locality: Paraguay.

Common names. Portuguese: Jacuaçu. Spanish: Pava oscura. English: Dusky-legged Guan.

Diagnosis. Distinguished from P. bridgesi by olive brown coloration with green tinge in upperparts, and generally darker overall coloration. Underparts very variable, unlike P. bridgesi . White margins of wing coverts markedly reduced. Head, hindneck, and back coloration more uniform than in P. bridgesi .

Re-description. No sexual dimorphism found in plumage coloration. Whitish edges extension of head feathers varies from wide to almost imperceptible. Some individuals show a moderately distinct superciliary stripe formed by short feathers with white edges. Overall color of crown feathers variable, ranging from black, gray to brown. White hue of the edge of the feathers varies individually. Brown back may show greenish, brownish or blackish tinge. Neck, breast, upper back, and shoulders conspicuously edged with white. Birds in the northern parts of the species’ range tend to have more noticeable white streaks on the back, but streaks also may be lacking. The coloration of the underparts is variable and may show a contrastingly darker chest than belly, but underparts may also be uniform dark or lighter than the breast. The belly feathers have contrasting horizontal scaling, which may range from brown to orangish, and may vary in intensity. Tail feathers are dark brown with bronze or purplish sheen. Bare skin of face slaty, legs dusky gray to blackish, and wattle red.

Distribution. Southeastern and southern Brazil (from the east of Minas Gerais and north of Espírito Santo to Rio Grande do Sul), northeastern Argentina (Misiones, Chaco, Corrientes, Entre Ríos, Santa Fe and Buenos Aires), and the forested regions of Uruguay, with recent photographic records for Paraguay. Inhabits the biogeographic provinces of Atlantic Forest, Cerrado, Paraná Forest, Araucaria Forest and Pampa.

Examined material (n = 84). BRAZIL. Minas Gerais: Muriaé (1 ♀ - MNRJ 36791 View Materials ) ; Juiz de Fora Km. 118 (1 ♂ - MNRJ 45036 View Materials ) ; Juiz de Fora Km. 788 (1 ♂ - MNRJ 48346 View Materials ) ; Matias Barbosa Km. 795 (1 ♂ - MNRJ 47672 View Materials ) ; Matias Barbosa Km. 801 (1 ♀ - MNRJ 48384 View Materials ) ; Simão Pereira Km. 807 (1♀ - MNRJ 49558 View Materials ) ; Simão Pereira Km. 817 (1 ♀ - MNRJ 45542 View Materials , 1 ♂ - MNRJ 48997 View Materials ) ; Simão Pereira Km. 825 (1 ♀ - MNRJ 48383 View Materials ) ; Estação do Túnel (2 ♀ - BMNH 1901.3 .28.65, BMNH 1901.3.28.64) ; Rio de Janeiro: 2- BMNH 1889.6 .1.215, RNHL no number, 1♂ - 1895.4.1.3, 1 ♀ - 1895.4.1.4 ; Rio de Janeiro (1 – ZSM no number) ; Levi Gasparian Km. 792 (1 ♂ - MNRJ 49619 View Materials ) ; Levi Gasparian (1 ♀ - MNRJ 48338 View Materials ) ; Tres Rios Km. 27 (1 ♀ - MNRJ 49080 View Materials ) ; Areal Km. 44 (1 ♂ - MNRJ 49081 View Materials ) ; Petropolis Km. 52 (1 ♂ - MNRJ 49574 View Materials ) ; Petropolis Km. 64 (1 ♂ - MNRJ 44389 View Materials ) ; Teresopolis Km. 52 (1 ♀ - MNRJ 47743 View Materials ) ; Teresopolis Km. 82 (1♀ - MNRJ 48354 View Materials ) ; Teresopolis (2 – MNRJ 9321 View Materials , MNRJ 9322 View Materials , 3 ♂ - MZUSP 32905 View Materials , MZUSP 32906 View Materials , MZUSP 32907 View Materials , 2♀ - MZUSP 32904 View Materials , MZUSP 32908 View Materials ; Guapimirim Km. 96 (1 ♂ - MNRJ 48337 View Materials ) ; Parnaso (1 ♂ - MNRJ 48336 View Materials ) ; Inga (1 ♂ - MNRJ 47552 View Materials ) ; Morro Redondo (1 ♀ - MNRJ 9405 View Materials ) ; Maromba (1♀ - MZUSP 34129 View Materials , 1 ♂ - MZUSP 34130 View Materials ) ; Paraty (1 ♂ - MNRJ 36927 View Materials ) ; São Paulo: 1 – BMNH 1889.6.1.203 ; Bananal (1 ♂ - MZUSP 78284 View Materials , 1 ♀ - MZUSP 78285 View Materials ) ; Varjão de Guaratuba (3 ♀ - MNRJ 31062 View Materials , MZUSP 31576 View Materials , MZUSP 43763 View Materials , 1 ♂ - MZUSP 31577 View Materials ) ; Cabreúva (1 ♂ - MZUSP 93098 View Materials ) ; Morretinho e Rocha (2 ♂ - MZUSP 49382 View Materials , MZUSP 49383 View Materials , 1 ♀ - MZUSP 49384 View Materials ) ; Rio Ribeira (1 ♀ - MZUSP 66890 View Materials , 1 ♂ - MZUSP 66891 View Materials ) ; Icapara (1 ♀ - MZUSP 73215 View Materials ) ; Paraná: Vale do Ivai (1 – MHNCI 399 View Materials ) ; Santa Barbara (1 ♀ - MHNCI 251 View Materials ) ; Fazenda Monte Alegre (1 ♂ - MZUSP 7021 View Materials ) ; Tibagi (1 ♀ - MHNCI 2041 View Materials ) ; Guaratuba-Caiobá (1 ♂ - MHNCI 1189 View Materials , 2 View Materials – MHNCI 256 View Materials , MHNCI 2519 View Materials ) ; Santa Catarina: Rio Negro (1 – MHNCI 5776 View Materials ) ; Joinville (1 ♂ - RNHL 1292-3 , 1 – MZUSP 4863 View Materials ) ; Colonia Hansa (1 ♂ - ZSM 12415 View Materials Penelope obscura bronzina HOLOTYPE, 2 – MZUSP 1911 View Materials , MFN 2759 ) ; Catanduvas (1 ♂ - MNRJ 36928 View Materials ) ; Anita Garibaldi (1 ♀ - MCNRS 2768 ) ; Jaguariaiva, Fazenda Morungava (1 – FMNH no number, 1 ♂ - 110740) ; Rio Grande do Sul: Potreirinhos (1 ♀ - MCNRS 682 ) ; Bom Jesus (1 ♀ - MCNRS 2544 ) ; São Francisco de Assis (1 – MCNRS 1975 ) ; Bagé (1 ♂ - MCNRS 1765 ) . URUGUAY. 1 ♂ - BMNH 1878.1.25.1 ; Payssandu: 1 – BMNH 1901.2 .10.24. PARAGUAY. 1 – BMNH no number. ARGENTINA. Misiones: Chantecler (2 ♂ - MACN 44034 View Materials , MACN 44036 View Materials , 1 ♀ - MACN 44035 View Materials ) ; Corrientes: Rincón Mercedes (1 ♂ - MACN 48384 View Materials , 1 ♀ - MACN 48385 View Materials ) .

Mentioned photographs. Wikiaves. com.br (n = 13): BRAZIL. 700594 ( Guarapuava , Paraná) ; 823706 (Caputira, Minas Gerais) ; 914588 (Taquara, Rio Grande do Sul) ; 1763524 (Aceguá, Rio Grande do Sul) ; 1782826 ( São Martinho da Serra , Rio Grande do Sul) ; 1380991 (Afonso Cláudio, Espirito Santo) ; 1423978 (Afonso Cláudio, Espirito Santo) ; 1681568 (Pouso Alegre, Minas Gerais) ; 450514 (Nova Friburgo, Rio de Janeiro) ; 1518511 (Itatiba, São Paulo) ; 1084879 (Tibagi, Paraná) ; 1090972 (Tibagi, Paraná) ; 1765142 ( Bocaina de Minas , Minas Gerais) .

Ecoregistros.org (n = 2). ARGENTINA: 10072 (Reserva Ecológica de Ribera del Norte – San Isidro, Buenos Aires); 10141 ( Reserva Ecológica de Ribera del Norte – San Isidro, Buenos Aires.