A leech was found parasitizing the ocular orbit of a common redstart captured during a faunistic survey of Antikythira in the Aegean Sea during the spring migration of 2012. Morphological and molecular characterizations placed the leech in the mucous-membrane specific leech family Praobdellidae and definitively as the species Parapraobdella lineata. This is the first record of any leech parasitizing a passerine bird, Phoenicurus phoenicurus, and the first of a praobdellid leech on any avian host.

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