Description of a new species of Dilepididae, Trichocephaloidis beauporti n. sp., parasite of Charadriiform Birds (Tringa flaviceps; Micropalama himantopus; Gallinago gallinago delicata; Squatarola squatarola) of Guadelupa and also of a Passeriforme, Quiscalus lugubris. This species can easily be separated from other Trichocephaloidis by the structure of bifid rostellum and the length of Hooks (70-77 mu). Trichocephaloidis charadrii is synonym of Trichocephaloidis megalocephala.