(syn. Poicephalus Ϯ Red-fronted Parrot P. gulielmi) Gr. ευ eu  fine, good; ψιττακος psittakos  parrot; "The genus Poicephalus contains four well-defined groups of species, which may be differentiated as follows:  1. Bill pale above and below, wing over 7 inches in length, culmen over 1 inch in length: P. robustus and allies.   2. Maxilla pale, mandible dark, wing over 7 inches, culmen over 1 inch: P. gulielmi.   3. Maxilla dark, mandible pale, wing under 7 inches, culmen not over 1 inch: P. fuscicapillus and P. flavifrons.   4. Entire bill dark, wing under 7 inches, culmen under 1 inch: P. senegalensis, rufiventris, meyeri and ruppelli.   The fourth group represents the typical Poicephalus, the third may be placed in a new subgenus, MICROPSITTACUS, type Pionus fuscicapillus Verr. and Des Murs, the second in a new subgenus, EUPSITTACUS, type Pionus gulielmi Jardine, and the first in a new subgenus NOTOPSITTACUS, type Psittacus robustus Gmelin." (A. Roberts 1922).

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2020). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2020). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 18 February 2020).