Abstract
Working on the HBWAlive Key to Scientific Names in Ornithology to ensure that the nomenclature and taxonomy therein reflects those in the HBW and BirdLife International illustrated checklist of the birds of the world (del Hoyo & Collar 2016), I discovered a case of preoccupation in the now expanded genus Sylvia. In vol. 2, p. 498, of the above-mentioned work the genera Pseudoalcippe Bannerman, 1923, Lioptilus Bonaparte, 1850, and Parisoma Swainson, 1831, are subsumed within Sylvia. As a result, the subspecific name Parisoma subcaeruleum ansorgei von Zedlitz, 1921, Orn. Monatsb. 29: 52 (currently Sylvia subcoerulea ansorgei) becomes preoccupied by Lioptilus abyssinicus ansorgei Rothschild, 1918, Bull. Brit. Orn. Cl. 38: 78 (currently Sylvia abyssinica ansorgei). Because the prior ansorgei Rothschild, 1918, was published after 1899 (Art. 23.9 of the Code (ICZN 1999), and as no other names are available for the subspecies ansorgei von Zedlitz, 1921, I propose:
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