New host/parasite record for very rare chewing louse Cuculotogaster arabicus (Clay, 1938) (Phthiraptera: Ischnocera) on endemic mountain partridges of Arabian Peninsula

The endemic avifauna of Arabia is unique and char- acteristic through the whole region. Little is known about these birds and their ectoparasites. The Arabian partridge Alectoris melanocephala (Rüppell, 1835) and Philby’s par- tridge Alectoris philbyi Lowe, 1934 are two endemic species which are distributed through the Sarawat Mountains in Saudi Arabia and Yemen. Captive breeding population of these birds were examined for chewing lice at the National Wildlife Research Center (NWRC) near Ta’if. Only one rare species of louse, Cuculotogaster arabicus (Clay 1938), was found to infest these birds. The occurrence of such species is consid- ered a first record of the genus Cuculotogaster from Saudi Arabia, and the association of C. arabicus with Philby’s par- tridge is considered a new host/parasite association. The clear diagnostic characters, high definition photos, and drawing of male genitalia are available through this paper.