taxonID	type	description	language	source
EF4A8788FFDFFFF6F8B6FCA6FB91F9BD.taxon	description	Analyses of the combined data for M. longipennis distinguished four main clades, separated from one another by at least 2.4 % uncorrected sequence divergence (Table 1; Fig. 4). These clades are partly concordant with current subspecies taxonomy: two clades correspond to paraensis and longipennis, whereas garbei and zimmeri form a single main clade, and ochrogyna and transitiva form a single composite clade (Fig. 4). (Below we refer to the composite ochrogyna / transitiva clade as ochrogyna; this name has priority over transitiva.) The Amazon-Napo separates longipennis from all other main clades, the Tapajós-Teles Pires separates paraensis from ochrogyna and garbei / zimmeri, and the Madeira separates ochrogyna from garbei / zimmeri. Two clades contain geographically structured subclades: longipennis is divided into eastern and western groups that are 1.5 % divergent and appear to be separated, at least in part, by the lower Branco and lower Negro; within the garbei / zimmeri main clade, garbei and zimmeri form groups 0.6 % divergent and likely separated by the Marañón. The clade from the Madeira-Tapajós interfluvium, which consists of ochrogyna and transitiva, also forms two subclades 0.6 % divergent, but these are not geographically structured and consequently do not correspond to current subspecies limits. One subclade consists of individuals from the ranges of both ochrogyna and transitiva, whereas the other consists solely of the other individuals of transitiva (some from the same localities as those in the first subclade). The clade corresponding to subspecies paraensis also shows within-clade structure, in this case consisting of three groups, but these are not geographically structured. Support for the four main clades and four subclades (garbei, zimmeri, and longipennis- E and - W) was generally strong: posterior probabilities were all 1.00 and bootstrap values were 72 – 100 %. Relationships among clades were likewise strongly supported except for the sister relationship between ochrogyna and garbei / zimmeri, which received a posterior probability of 0.74 and a bootstrap value of 64 %. The deepest split within the tree, which separated longipennis from all other main clades, was 5.9 % uncorrected divergence.	en	Chesser, R. Terry, Isler, Morton L., Santana, Antonita, Latch, Emily K., Stryjewski, Katherine Faust, Reed, Jennifer, Naka, Luciano N., Fleischer, Robert C., Aleixo, Alexandre (2025): Comparative phylogeographic patterns in three pan-Amazonian antwren lineages (Aves: Passeriformes: Thamnophilidae: Myrmotherula and Isleria). Zootaxa 5722 (1): 1-44, DOI: 10.11646/zootaxa.5722.1.1, URL: https://doi.org/10.11646/zootaxa.5722.1.1
EF4A8788FFDDFFFAF8B6FA0FFA4BFE41.taxon	description	Analyses for M. menetriesii distinguished five main clades, each separated by at least 2.3 % uncorrected sequence divergence from the others (Table 1; Fig. 6). These clades correspond to the five subspecies of menetriesii (berlepschi, cinereiventris, pallida, and omissa, in addition to menetriesii), except for individuals from the lower Madeira-Tapajós interfluvium (Fig. 7). The upper Amazon and Marañón separate pallida from menetriesii and the lower Negro and the Branco separate the southeastern distributional limit of pallida from the southwestern limit of cinereiventris. North of this, in extreme northern Brazil and in Venezuela, cinereiventris occurs only east of landscape features such as the Roraima-Rupununi savannas and the Gran Sabana. Samples of berlepschi are located mainly in extreme southern Amazonia east of the Madeira headwaters, with one sample occurring as far east as Nova Mutum, in the headwaters of the Juruena, a tributary of the Tapajós. Samples of omissa, which is known to occur from east of the lower Tapajós south into its headwaters, and east beyond the Tocantins (e. g., Peters 1951; Dickinson & Christidis 2014), were documented additionally to the west of the Tapajós (Fig. 7). The two individuals of omissa from west of the Tapajós, from Nova Canaã and São Martins, form a subclade 1.6 % divergent from all samples from the right bank and other samples to the south and east. Subspecies pallida consists of two subclades separated by the Napo, which differ by 0.9 %. Several other clades show within-clade diversity, but such variation is not geographically structured. For example, the two northernmost samples of berlepschi, collected from the same locality on the Rio Ji-Paraná, differ by 1.3 %. Bootstrap support for the five main clades, as well as for the subclades within omissa and pallida, was uniformly strong: posterior probabilities were all 1.00 and bootstrap values were 91 – 100 %. Relationships among clades were strongly supported except for the sister relationship between omissa and pallida / cinereiventris (0.71 posterior probability and a 52 % bootstrap value). The deepest split within the tree was 5.0 % uncorrected divergence, separating menetriesii and berlepschi from the other main clades. The divergence between omissa and cinereiventris, across the lower Amazon, was also substantial at 4.9 % uncorrected divergence.	en	Chesser, R. Terry, Isler, Morton L., Santana, Antonita, Latch, Emily K., Stryjewski, Katherine Faust, Reed, Jennifer, Naka, Luciano N., Fleischer, Robert C., Aleixo, Alexandre (2025): Comparative phylogeographic patterns in three pan-Amazonian antwren lineages (Aves: Passeriformes: Thamnophilidae: Myrmotherula and Isleria). Zootaxa 5722 (1): 1-44, DOI: 10.11646/zootaxa.5722.1.1, URL: https://doi.org/10.11646/zootaxa.5722.1.1
EF4A8788FFD3FFFFF8B6F92DFB45FE89.taxon	description	Analyses of I. guttata-hauxwelli distinguished five main clades separated by at least 2.5 % sequence uncorrected divergence (Table 1; Fig. 8). One clade corresponds to I. guttata, which is sister to all other clades. Within I. hauxwelli, one of the clades corresponds to subspecies hellmayri, but the other clades are not congruent with the other subspecies, suffusa and hauxwelli (Fig. 9). The clade that includes all individuals within the described distribution of suffusa, north of the upper Amazon and Marañón, also includes individuals south of the Marañón and west of the Ucayali, in the western part of the described range of nominate hauxwelli; we call this clade hauxwelli- W rather than suffusa because the type locality of hauxwelli (the name has priority over suffusa) is within the distribution of this composite group. Two other clades, which we call hauxwelli- C and hauxwelli - E, occupy the majority of the described range of nominate hauxwelli. The distribution of hauxwelli - C extends east of the Ucayali to the lower Madeira and across the upper Madeira as far east as the Rio Teles Pires. This clade forms two shallow subclades (hauxwelli- C-W and hauxwelli- C-E) divided by the upper Madeira-Mamoré and separated by 0.6 % sequence divergence. Both subclades of hauxwelli - C show additional structure, but this is not geographically structured. Individuals east of the extreme lower Madeira, on both sides of the Tapajós and east of the Teles Pires in the Tapajós-Xingu interfluvium, form major clade hauxwelli- E. This clade also consists of two subclades, in this case 0.9 % divergent; these groups are separated by the Tapajós, one subclade northwest of the river (hauxwelli- E-N) and the other southeast (hauxwelli- E-S). Main clades in this species complex are largely delineated by rivers: the Amazon-Negro, separating I. guttata from I. hauxwelli; the Xingu, separating hellmayri from all forms of hauxwelli; the Teles-Pires (and perhaps lower Madeira), separating hauxwelli- E from hauxwelli - C and - W; and the Amazon-Ucayali, separating hauxwelli - C from hauxwelli - W. The Madeira and Tapajós separate subclades, except perhaps for the extreme lower Madeira, which may separate hauxwelli- C and hauxwelli- E. Support for all clades and subclades was strong: posterior probabilities were all 1.0, except for 0.90 for hauxwelli - C-W, and bootstrap values were 80 – 100 %. Relationships among clades were strongly supported except for the sister relationship between hauxwelli - E and hauxwelli - C / hauxwelli - W, which received 0.97 posterior probability but less than 50 % bootstrap. The deepest split within the tree was 7.8 % uncorrected divergence, separating currently recognized species I. guttata and I. hauxwelli.	en	Chesser, R. Terry, Isler, Morton L., Santana, Antonita, Latch, Emily K., Stryjewski, Katherine Faust, Reed, Jennifer, Naka, Luciano N., Fleischer, Robert C., Aleixo, Alexandre (2025): Comparative phylogeographic patterns in three pan-Amazonian antwren lineages (Aves: Passeriformes: Thamnophilidae: Myrmotherula and Isleria). Zootaxa 5722 (1): 1-44, DOI: 10.11646/zootaxa.5722.1.1, URL: https://doi.org/10.11646/zootaxa.5722.1.1
