(syn. Stephanoxis Ϯ Green-crowned Plovercrest S. lalandi) Gr. κεφαλη kephalē head; λεπις lepis, λεπιδος lepidos scale, flake < λεπω lepō to peel; "Mr. Vigors exhibited several species of Humming-birds from the collection of Mr. John Gould, one of which, previously undescribed, had been dedicated to Mr. George Loddiges, F.L.S., &c. It approaches most nearly to Trochilus Lalandei, Vieill., but may be distinguished from that bird (in which the crest is brilliantly green and the throat and breast rich blue,) by the following characters: TROCHILUS LODDIGESII, Gould. ... Mr. Loddiges stated that both species belonged to a genus which he had distinguished among the Trochilidæ by the name of Cephallepis; and promised to bring before the Committee, at an early meeting, the results of his researches on the Trochilidæ generally." (Loddiges 1831); "Cephallepis Loddiges, Proc. Comm. Zool. Soc. London, pt. 1, 1830-31 (1831), p. 12. Type, by subsequent designation, Trochilus lalandi Vieillot. Not Cephalepis Rafinesque, 1810. (G. R. Gray, Cat. Gen. Subgen. Bds., 1855, p. 23.)" (Peters 1945, V, 30). Var. Cephalolepsis, Cephalepis.