(syn. Vireo Ϯ Warbling Vireo V. gilvus) L. melodus melodious < Gr. μελωδος melōdos musical < μελος melos song; genus Vireo Vieillot, 1808, vireo; "WARBLING VIREO, Melodivireo gilvus Melodivireo Oberholser, new genus. Similar to Lanivireo Vieillot, but first primary (counting from outermost) less than 1/3 length of second; and second primary (counting from outermost) very much shorter than fifth, instead of longer, or at most only very slightly shorter; and height of bill less than half its length from nostril to tip. Type: Muscicapa gilva Vieillot" (Oberholser 1974).