Key to Scientific Names in Ornithology
(Tyrannidae; Ϯ Common Vermilion Flycatcher P. rubinus) Gr. πυρ pur, πυρος puros fire; κεφαλη kephalē head; "SUB-GEN. PYROCEPHALUS, GOULD. ... the males of nearly all the members of this group (which may be considered either as a distinct genus or sub-genus of Myiobius), have the crown of the head and greater part of the under surface scarlet. Four species were obtained. — Pyrocephalus parvirostris, (Gould), and Muscicapa coronata, (Auct.), may be taken as types" (Gould 1839); "Pyrocephalus Gould, 1839, in Darwin, Zool. Beagle, pt. 3 (1841), p. 44. Type, by subsequent designation (Gray, 1840, List Genera Birds, p. 30), "P. coronatus (L) Gould" = Pyrocephalus major Pelzeln." (Traylor in Peters 1979, VIII, 149-150); "344. Pyrocephalus rubinus ... Birds from SE Peru (Huiro and Chaquimayo) described as race major, but validity has repeatedly been questioned; breeding grounds of this purported race unknown." (del Hoyo & Collar 2016, 198).
Gr. πυρ pur, πυρος puros fire; -κεφαλος -kephalos -headed < κεφαλη kephalē head.