Belongs within: Sylviida.
Phylloscopus, the leaf-warblers, is a genus of small insectivorous birds found in Eurasia and Africa. Most Phylloscopus species are predominantly green or brown and may be difficult to distinguish by their appearance alone, though most have distinctive calls.
<==Phylloscopus Boie 1826M02 [incl. Phyllopneuste Boie 1828B94; Phyllopneustinae, Phylloscopidae, Phylloscopinae] | i. s.: P. budongoensisJT12 | P. herbertiJT12 | P. lauraeJT12 | P. makirensisJT12 | P. neglectusJT12 | P. subviridisJT12 |--+--+--P. yunnanensisBKB15 | | `--+--+--P. humeiBKB15 | | | `--P. inornatusJT12 | | `--+--+--P. maculipennisBKB15 | | | `--P. pulcherJT12 | | `--+--P. forrestiBKB15 | | `--+--P. chloronotusJT12 | | | |--P. c. chloronotusAE06 | | | `--P. c. simlaensisAE06 | | `--+--P. kansuensisJT12 | | `--P. proregulusJT12 [=Reguloides proregulusS89] | `--+--+--P. orientalisBKB15 | | `--+--P. bonelliBKB15 | | `--P. sibilatrix (Bechstein 1793)BKB15, M02 [=Motacilla sibilatrixM02] | `--+--+--P. tytleriJT12 | | `--+--+--P. affinisJT12 | | | `--P. griseolusJT12 | | `--+--P. armandiiJT12 | | `--P. schwarziJT12 | `--+--+--P. fuligiventerJT12 | | `--P. fuscatusJT12 | `--+--P. subaffinisJT12 | `--+--P. trochilusJT12 [=Phyllopneuste trochilusD66] | `--+--P. brehmii (Homeyer 1871) [=P. collybita brehmii]HM96 | |--P. ibericusBKB15 | `--+--P. canariensis (Hartwig 1886) [=P. collybita canariensis]HM96 | | |--P. c. canariensisHM96 | | `--P. c. exsul Hartert 1907 [=P. collybita exsul]HM96 | `--+--P. collybita (Vieillot 1817)HM96 | | |--+--P. c. collybitaHM96 | | | `--P. c. abietinus (Nielsson 1819)HM96 | | `--+--P. c. brevirostris (Strickland 1836)HM96 | | |--P. c. caucasicus Loskot 1991HM96 | | `--P. c. menzbieri Schestoperov 1937HM96 | `--+--P. sindianus Brooks 1880HM96 | | |--P. s. sindianusHM96 | | `--P. s. lorenzii (Lorenz 1887)HM96 | `--P. tristis Blyth 1843 [=P. collybita tristis; incl. P. collybita fulvescens]HM96 `--+--SeicercusBKB15 | |--+--+--S. affinisJT12 | | | `--S. poliogenysJT12 | | `--+--S. burkiiJT12 | | `--S. tephrocephalusJT12 | `--+--S. omeiensisJT12 | `--+--S. sororJT12 | `--+--S. valentiniJT12 [=S. burkii valentiniVP89] | `--S. whistleriJT12 `--+--+--+--P. laetusBKB15 | | `--+--P. ruficapillaJT12 | | `--P. umbrovirensJT12 | | |--P. u. umbrovirensAE06 | | `--P. u. fugglescouchmaniAE06 | `--+--+--P. cebuensisBKB15 | | `--P. olivaceusJT12 | `--+--P. occipitalisBKB15 | `--+--P. coronatusBKB15 | `--P. ijimae (Stejneger 1892)JT12, I92 `--+--+--P. emeiensisBKB15 | `--+--‘Seicercus’ montisBKB15 | `--+--‘Seicercus’ castanicepsJT12 | | |--S. c. castanicepsVP89 | | `--S. c. sinensisVP89 | `--‘Seicercus’ grammicepsJT12 `--+--+--+--P. plumbeitarsusVP89 | | `--+--P. nitidusBKB15 | | `--P. trochiloidesJT12 | `--+--P. borealisBKB15 [=Phyllopneuste borealisS05] | | |--P. b. borealisVP89 | | `--P. b. xanthodryasVP89 | `--+--P. magnirostrisJT12 | `--+--P. borealoidesJT12 | `--P. tenellipesJT12 `--+--+--P. rickettiBKB15 | `--+--P. calciatilisBKB15 | `--P. cantatorBKB15 `--+--+--P. claudiaeBKB15 | `--+--P. goodsoniBKB15 | `--P. reguloidesBKB15 | |--P. r. reguloidesVP89 | `--P. r. fokiensisVP89 `--+--+--+--P. hainanusBKB15 | | `--P. ogilviegrantiJT12 [=P. davisoni ogilviegrantiVP89] | `--+--P. davisoniBKB15 | `--+--P. presbytesBKB15 | `--P. xanthoschistosBKB15 [=Seicercus xanthoschistosJF06] `--+--P. trivirgatusBKB15 `--+--P. nigrorumBKB15 `--+--P. sarasinorumJT12 `--+--P. amoenusJT12 `--P. poliocephalusJT12
*Type species of generic name indicated
References
[AE06] Alström, P., P. G. P. Ericson, U. Olsson & P. Sundberg. 2006. Phylogeny and classification of the avian superfamily Sylvioidea. Molecular Phylogenetics and Evolution 38: 381–397.
[B94] Bock, W. J. 1994. History and nomenclature of avian family-group names. Bulletin of the American Museum of Natural History 222: 1–281.
[BKB15] Burleigh, J. G., R. T. Kimball & E. L. Braun. 2015. Building the avian tree of life using a large-scale, sparse supermatrix. Molecular Phylogenetics and Evolution 84: 53–63.
[D66] Dohrn, H. 1866. Synopsis of the birds of Ilha do Principe, with some remarks on their habits and descriptions of new species. Proceedings of the Zoological Society of London 1866: 324–332.
[HM96] Helbig, A. J., J. Martens, I. Seibold, F. Henning, B. Schottler & M. Wink. 1996. Phylogeny and species limits in the Palaearctic chiffchaff Phylloscopus collybita complex: mitochondrial genetic differentiation and bioacoustic evidence. Ibis 138: 650–666.
[I92] Iwahashi, J. (ed.) 1992. Reddo Deeta Animaruzu: a pictorial of Japanese fauna facing extinction. JICC: Tokyo.
[JF06] Jønsson, K. A., & J. Fjeldså. 2006. A phylogenetic supertree of oscine passerine birds. Zoologica Scripta 35: 149–186.
[M02] Mlíkovský, J. 2002. Cenozoic Birds of the World. Part 1: Europe. Ninox Press: Praha.
[S89] Salvadori, T. 1889. Viaggio di Leonardo Fea nella Birmania e nelle regioni vicine. XIX.—Uccelli raccolti nei Monti Carin a nord-est di Tounghoo, nel Pegù presso Rangoon e Tounghoo e nel Tenasserim presso Malewoon. Annali del Museo Civico di Storia Naturale di Genova, Serie 2a, 7: 369–438.
[S05] Schalow, H. 1905. Die Vögel der Arktis. In: Römer, F., & F. Schaudinn (eds) Fauna Arctica. Eine Zusammenstellun der arktischen Tierformen, mit besonder Berücksichtigung des Spitzbergen-Gebietes auf Grund der Ergebnisse der Deutschen Expedition in das Nördliche Eismeer im Jahre 1898 vol. 4 pp. 79–288. Gustav Fischer: Jena.
[VP89] Viney, C., & K. Phillipps. 1989. Birds of Hong Kong 5th ed. Government Printer: Hong Kong.