In Ecuador there are few studies on tick parasitism in wild mammals. In the Ecuadorian Amazon, only cases of infestation of ticks of the genus Amblyomma (Acari: Ixodidae) on non-flying mammals, birds, and reptiles have been reported. Herein, we report, for the first time, the infestation of Ixodes luciae Sénevet, 1940 (Acari: Ixodidae) on Gianna’s Yellow-shouldered bat (Sturnira giannae Velazco and Patterson) and Common Long-tongued Bat (Glossophaga soricine Pallas) as well as its occurrence in the Andes mountains and the Amazonia of Ecuador.