Megascops usta ( Sclater, 1858 )

Dantas, Sidnei M., Weckstein, Jason D., Bates, John, Oliveira, Joiciane N., Catanach, Therese A. & Aleixo, Alexandre, 2021, Multi-character taxonomic review, systematics, and biogeography of the Blackcapped / Tawny-bellied Screech Owl (Megascops atricapilla-M. watsonii) complex (Aves: Strigidae), Zootaxa 4949 (3), pp. 401-444 : 428

publication ID

https://doi.org/10.11646/zootaxa.4949.3.1

publication LSID

lsid:zoobank.org:pub:2CAB47C9-2109-45DA-8F02-50D74D593DF2

DOI

http://doi.org/10.5281/zenodo.4647748

persistent identifier

http://treatment.plazi.org/id/03D98791-FFDF-2215-FF55-FE83FBC08466

treatment provided by

Plazi

scientific name

Megascops usta ( Sclater, 1858 )
status

 

Megascops usta ( Sclater, 1858)  

Variable Screech-Owl

corujinha-relógio (Portuguese)

Scops usta Sclater, 1858   (type not examined).

Pisorhina watsonii (Cassin, 1848)   : Hellmayr (1907).

Otus watsonii (Cassin, 1848)   : Hellmayr (1910).

Pisorhina usta ( Sclater, 1858)   : Snethlage (1914).

Otus watsonii usta ( Sclater, 1858)   : Chapman (1928); Peters (1940); Hekstra (1982); Marks et al. 1999; Weick (2006; part: specimens in southernmost Venezuela and Amazonian Colombia, Ecuador, Peru, Bolivia, and Brazil between the western banks of the Negro and the lower Tapajós and upper Xingu rivers).

Otus atricapillus morelius Hekstra, 1982   : Browning (1989); holotype at AMNH examined   .

Otus atricapillus inambarii Hekstra, 1982   : Browning (1989); holotype at FMNH examined   .

Otus atricapillus fulvescens Hekstra, 1982   : Browning (1989); holotype at AMNH examined   .

Megascops usta ( Sclater, 1858)   : König et al. (1999); König & Weick (2008; part: specimens in southernmost Venezuela and Amazonian Colombia, Ecuador, Peru, Bolivia, and Brazil between the western banks of the Negro and the lower Tapajós and upper Xingu rivers).

Megascops watsonii usta ( Sclater, 1858)   : Dickinson & Remsen (2013); Clements et al. (2019); Gill et al. (2020; part: populations in southernmost Venezuela and Amazonian Colombia, Ecuador, Peru, Bolivia, and Brazil between the western banks of the Negro and the lower Tapajós and upper Xingu rivers).

With type locality referred as Tefé, Amazonas, Brazil ( Sclater, 1858), and corresponding to specimens in Clade B, M. usta   is distributed over a wide geographic area in Amazonia, ranging from west of the Branco-Negro rivers throughout the Imerí, Napo, Inambari, Madeira and upper stretches of the Tapajos and Xingu AOEs. Strong statistical support for reciprocal monophyly, high degree of coalescence, and high uncorrected pairwise p-distances ranging from 2.1% ( M. ater   ) to 6.4% ( M. watsonii   ) differentiates this taxon from others in the Megascops   atricapilla-M. watsonii   complex. Morphologically variable with multiple morphs, mainly brown or red, but also gray, and not safely distinguishable solely based on morphology from the other species in the complex. There is geographical variation in the frequency of different morphs among populations. Apparently does not include morphs as dark in color as those found in M. watsonii   and M. ater   . Vocally distinct from M. watsonii   , M. stangiae   and M. atricapilla   by on average slower-paced longsongs and shortsongs ( Fig. 9 View FIGURE 9 ; Tables 6 View TABLE 6 , 8 View TABLE 8 , and 10).

AMNH

American Museum of Natural History

FMNH

Field Museum of Natural History

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Strigiformes

Family

Strigidae

Genus

Megascops

Loc

Megascops usta ( Sclater, 1858 )

Dantas, Sidnei M., Weckstein, Jason D., Bates, John, Oliveira, Joiciane N., Catanach, Therese A. & Aleixo, Alexandre 2021
2021
Loc

Megascops

Dantas & Weckstein & Bates & Oliveira & Catanach & Aleixo 2021
2021
Loc

M. stangiae

Dantas & Weckstein & Bates & Oliveira & Catanach & Aleixo 2021
2021
Loc

Otus atricapillus morelius

Hekstra 1982
1982
Loc

Otus atricapillus inambarii

Hekstra 1982
1982
Loc

Otus atricapillus fulvescens

Hekstra 1982
1982
Loc

Scops usta

Sclater 1858
1858