Belongs within: Sylviida.
Contains: Pycnonotus, Alophoixus, Hypsipetes, Ixos, Phyllastrephus, Criniger, Eurillas, Arizelocichla.
The Pycnonotidae, bulbuls, are a family of soft-plumaged songbirds with well-developed rictal bristles and a patch of hair-like, vaneless feathers on the nape, found in Africa and Asia.
<==Pycnonotidae [Brachypinae, Brachypodidae]
|--+--PycnonotusBKB15
| `--+--Tricholestes crinigerBKB15
| `--+--+--Setornis crinigerBKB15
| | `--AlophoixusBKB15
| `--+--+--+--‘Ixos’ amaurotisJT12
| | | `--HypsipetesBKB15
| | `--+--IxosBKB15
| | `--HemixosBKB15
| | | i. s.: H. hildebrandtiS89
| | |--H. castanonotusBKB15
| | `--+--H. cinereusBKB15
| | `--H. flavalaBKB15
| | |--H. f. flavalaL03
| | `--H. f. connectens Sharpe 1887 [=Hemixus connectens]L03
| `--+--‘Ixos’ palawanensisJT12
| `--IoleBKB15
| | i. s.: I. cacharesisAP21
| | I. charlottaeAP21
| | I. cryptaAP21
| | I. indicaJT12
| | I. virescensL03
| | |--I. v. virescensL03
| | `--I. v. myitkyinensis (Deignan 1948) [=Microscelis viridescens myitkyinensis]L03
| | I. viridescensAP21
| |--I. palawanensis (Tweeddale 1878)BKB15, L03 (see below for synonymy)
| `--+--I. olivaceaBKB15
| `--I. propinquaBKB15 [=Hypsipetes propinquusJF06]
| |--I. p. propinquaL03
| `--I. p. aquilonis (Deignan 1948) [=Microscelis charlottae aquilonis]L03
`--+--+--Neolestes torquatusBKB15
| `--+--Andropadus importunusBKB15
| `--+--Stelgidillas gracilirostris (Strickland 1844)BKB15, L03 (see below for synonymy)
| `--Calyptocichla serinaBKB15
`--+--+--PhyllastrephusBKB15
| `--+--CrinigerBKB15
| `--EurillasBKB15
`--+--BledaBKB15
| |--B. syndactylus (Swainson 1837)BKB15, L03 [incl. B. syndactyla ogowensis Neumann 1914L03]
| `--+--B. eximiusBKB15
| `--+--B. canicapillusBKB15
| `--B. notatusBKB15
| |--B. n. notatusL03
| `--B. n. ugandae van Someren 1915 [=B. exima (l. c. for eximia) ugandae]L03
`--+--ArizelocichlaBKB15
`--+--+--Atimastillas flavicollisBKB15 [=Chlorocichla flavicollisJT12]
| | |--A. f. flavicollisL03
| | `--‘Xenocichla’ f. soror Neumann 1914 [=Chlorocichla flavicollis soror]L03
| `--+--Thescelocichla leucopleuraBKB15
| `--Ixonotus guttatusBKB15
`--+--BaeopogonBKB15
| |--B. clamansBKB15
| `--B. indicator (Verreaux 1855) [incl. Chlorocichla indicator chlorosaturata van Someren 1915]L03
`--ChlorocichlaBKB15
|--C. falkensteiniJT12
|--C. flaviventrisBKB15
| |--C. f. flaviventrisAE06
| `--C. f. centralisAE06
|--C. laetissimaJT12
|--C. prigogineiJT12
`--C. simplex (Hartlaub 1855) (see below for synonymy)L03
Pycnonotidae incertae sedis:
ThapsinillasAP21
|--T. affinisL03
| |--T. a. affinisL03
| |--T. a. harterti (Stresemann 1912) [=Criniger affinis harterti]L03
| `--T. a. lucasi (Hartert 1903) [=Criniger lucasi]L03
|--T. longirostrisAP21
`--T. mysticalisAP21
MicroscelisL03
|--M. crassirostrisG68
`--M. madagascariensisG68
Cerasophila Bingham 1900B00
`--*C. thompsoni Bingham 1900B00
Nok hualonAP21
Acritillas indicaAP21