Two overlooked generic synonyms in the Thraupidae (Aves: Passeriformes).

In a revision of the generic classification of the tanagers, Burns et al. (2016) proposed the name Islerothraupis with type species Tanagra cristata Linnaeus, 1766 (long known as Tachyphonus cristatus); however, they overlooked a previous designation of that species as the type of a genus. In 1821, Feliks Pawel Jarocki, in the second volume of Zoologiia czyli Zwiérzętopismo Ogólne podług Naynowszego Systematu ułożone ("Zoology, or general natural history account according to the newest arranged system"), page 133, specified Tanagra cristata as the type of a proposed subgenus Loriotus. The original text in Polish is available at the website www.rcin.org.pl, the Digital Repository of Scientific Institutes, which has made a wide diversity of scholarship in Polish available over the Internet. The original description of Loriotus, in parallel with other names Jarocki introduced in his Zoologiia, is minimal: "Dziób ostro kończysty, cokolwiek zgięty. Żuchwy sczęki spodniey przy nasadzie bardzo mało zgrubiałe." (Bill ending in a point, somewhat curved. Lower mandible slightly thickened at base.).