This genus was formerly synonymized with the genus Andropadus. A molecular phylogenetic study of the bulbul family published in 2007 found that Andropadus was polyphyletic.[3] In the revision to the generic classification five species were moved from Andropadus to the resurrected genus Eurillas.[4]
^Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 153. ISBN978-1-4081-2501-4.
^Johansson, U.S.; Fjeldså, J.; Lokugalappatti, L.G.S.; Bowie, R.C.K. (2007). "A nuclear DNA phylogeny and proposed taxonomic revision of African greenbuls (Aves, Passeriformes, Pycnonotidae)". Zoologica Scripta. 36 (5): 417–427. doi:10.1111/j.1463-6409.2007.00290.x.
^ abGill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2021). "Bulbuls". IOC World Bird List Version 11.1. International Ornithologists' Union. Retrieved 26 June 2021.
Moyle, R. G., and B. D. Marks. 2006. Phylogenetic relationships of the bulbuls (Aves: Pycnonotidae) based on mitochondrial and nuclear DNA sequence data. Molecular Phylogenetics and Evolution 40: 687–695.