Dot-winged Antwren (Microrhopias quixensis) [XC272259]
by Peter Boesman from Mozeskreek area, W Suriname, Suriname (song)
Dot-winged Antwren (Microrhopias quixensis) [XC271379]
by Peter Boesman from Pipeline road, Panama (call)
Subspecies
Relationships uncertain. Extensive study of morphological and vocal characters indicated close relationship with Formicivora. However, a genetic study in which latter genus was not included suggested closeness to "stipple-throated antwren assemblage" of Myrmotherula. Subspecies boucardi and virgatus intergrade in Honduras and future research may indicate that they should be merged. On basis of vocal as well as plumage differences, possibly also differences in habitat preferences, it is very likely that some other subspecies merit elevation to species rank. e.g. emiliae suggested as a separate species. Further study is required.
The following 10 subspecies are recognised:
boucardi (Sclater, PL, 1858) - Eastern Mexico (eastern Veracruz and north-eastern Oaxaca east to southern Campeche and southern Quintana Roo), Belize, eastern Guatemala and northern Honduras.
virgatus (Lawrence, 1863) - South-eastern Honduras and eastern Nicaragua south to western Panama (east to eastern Panamá and western San Blas, locally on Pacific slope).
consobrina (P. L. Sclater, 1860) - Eastern Panama (eastern San Blas, Darién), western and northern Colombia and western Ecuador.
microstictus (von Berlepsch, 1908) - North-eastern Amazonian Brazil (northern Roraima, extreme north-eastern Pará, Amapá), southern Guyana, Surinam and French Guiana.
quixensis (Cornalia, 1849) - Southern Colombia (Putumayo, Caquetá), eastern Ecuador and north-eastern Peru (northern Loreto north of R Marañón and R Amazon).
intercedens Zimmer, JT, 1932 - Lowlands of central Peru (south of R Amazon and along both banks of R Ucayali) and south-western Amazonian Brazil (east to R Madeira).
nigriventris Carriker, 1930 - Eastern slope and base of Andes in central Peru (San Martín south to northern Cuzco).
albicauda Carriker, 1932 - South-eastern Peru (southern Cuzco, south-eastern Ucayali, Madre de Dios, Puno) and adjacent northern Bolivia (Pando).
bicolor (Pelzeln, 1868) - South-central Amazonian Brazil (R Madeira east to R Tapajós and R Teles Pires, south to Rondônia and northern and western Mato Grosso).
emiliae Chapman, 1921 - R Tapajós east to R Tocantins and south to extreme northern Mato Grosso (north-east of R Teles Pires).
BirdLife International Species Factsheet