American Journal of Primatology 47:347 (1999) © 1999 Wiley-Liss, Inc. CORRIGENDUM Kay RFD, Johnson D, Meldrum DJ. 1998. A new pitheciin primate from the middle Miocene of Argentina. Am J Primatol 45:317–336. Proteropithecia, new name for Propithecia Kay, Johnson, and Meldrum, 1998 non Vojnits 1985. The name Propithecia proposed by Kay et al. [1998] for a genus within the order Primates is not available, having been previously used as a genus of Lepi- doptera as follows: Propithecia Vojnits AM. 1985. New South American genera and species of Eupithecini (Lepidoptera: Geometridac). Acta Zoologica Academiae Scientarium Hungaricae 31:405–418. The name Proteropithecia is hereby proposed to replace Propithecia Kay, Johnson, and Meldrum 1998. We thank John K. Page, Production Section Chief for The Zoological Record, for calling this Homonymy to our attention.