(Trochilidae; Ϯ White-tailed Emerald E. chionura) Female eponym: perhaps after Elvire, “the name by which the poet Lamartine idealised Mme. Julie Charles   ...   with whom he was at one time deeply in love” (Harvey & Heseltine 1959) (cf. Elvira Flores (b. 1846) eldest daughter of General Juan José Flores President of Ecuador 1830-1835, 1839-1845 (Martin Schneider in litt.): but note that the White-tailed Emerald does not occur in that country); "Genre LEUCOCHLORIS  ...  aa. Rectrices externes à intermédiaires blanches sur la moyenne partie basilaire de leur longueur  (S.-g. Elvira).    Chianura [sic], GOULD.    Costa-Rica.    Class. de M. Gould. Thaumantias" (Mulsant et al. 1866); "Elvira Mulsant and J. and E. Verreaux, Mém. Soc. Imp. Sci. Nat. Cherbourg, 12, 1866, p. 176. (P. 32 of separately paged reprint.) Type, by monotypy, Trochilus (Thaumatias) chionura Gould." (Peters 1945, V, 77).
Synon. Lawrencius.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 16 December 2018).