Riparia is a genus of passerine birds in the swallow family Hirundinidae.
The genus name is from the Latin riparius which means "of the riverbank"; it is derived from the Latin ripa "riverbank".

1/ Brown-throated martin or brown-throated sand martin (Riparia paludicola)
The specific epithet paludicola is Latin meaning "marsh-dweller" (from palus, paludis meaning "swamp" and -cola meaning "dweller".

2/ Sand martin (Nhạn nâu xám, Riparia riparia), also known as the bank swallow (in the Americas), collared sand martin, or common sand martin