Key to Scientific Names in Ornithology
(Thraupidae; Ϯ Yellow-faced Grassquit T. olivaceus) Gr. τιαρις tiaris tiara < τιαρα tiara tiara, head-dress; "G. TIARIS. Swains. in Zool. Journ. No. 10. 73. Tiaris pusillus. Olive; crown, ears, throat and breast blackish; eye-stripe and chin golden yellow. Table land. Temiscaltipec. Real del Monte. A variety, or probably a young bird of this species now before me, differs in having the black confined to a narrow margin bordering the yellow spots." (Swainson 1827 (June)); "Leaving the genus Ploceus, of which the foregoing are the the most prominent forms, we come to the American group of Tiaris, a small assemblage of pretty little birds, most of which, as the name implies, are crowned with crests" (Swainson 1837).
● (syn. Charitospiza Ϯ Coal-crested Finch C. eucosma) "TIARIS. ... Bill thick, conic, acute, slightly notched. Wings rather short, rounded; the second, third, fourth, and fifth quills nearly equal and longest. Tail rounded. Type. Fringilla ornata. Temm., Pl. col. No. 208" (Swainson 1827 (December)).