A new species of Felicola (Phthiraptera, Trichodectidae) from a Costa Rican jaguar, Panthera onca (Carnivora, Felidae)

A new species of chewing louse, Felicola (Lorisicola) oncae (Phthiraptera: Trichodectidae), is described and illustrated from a jaguar, Panthera onca (Carnivora: Felidae), taken in Costa Rica. Although this louse is based only on a single male specimen, its morphological distinctiveness and occurrence on a big cat of the genus Panthera make its discovery and description of special significance. The genus Felicola Ewing now contains 55 species, which can be grouped into four subgenera: Felicola, Lorisicola, Paradoxuroecus, and Suricatoecus.