Myrmotherula garbei zimmeri Chapman, 1925

Isler, Morton L., Chesser, R. Terry, Stryjewski, Katherine Faust & Whitney, Bret M., 2025, Systematics of three pan-Amazonian antwren lineages (Aves: Passeriformes: Thamnophilidae: Myrmotherula and Isleria), Zootaxa 5722 (1), pp. 45-78 : 55

Myrmotherula garbei zimmeri Chapman, 1925

Includes the subpopulation designated zimmeri in the analysis.

Diagnosis. Myrmotherula garbei zimmeri is distinguished from the nominate form of M. garbei by diagnosable differences in female plumage characters provided in the description of M. garbei and considered a subspecies of M. garbei based on the consistency of their vocalizations.

Distribution. South of the Rio Napo, north of the Rio Marañón, and east of the Andes in Ecuador and Peru.

Remarks. Refer to remarks under M. garbei . If confirmed, the conclusion that this subpopulation should be considered a subspecies of M. garbei is supported by the phylogeny.