A new species of Zephyranthes (Amaryllidaceae), growing in semi-arid areas of the High Plain of Bogotá, Colombia, is described and illustrated. We give notes on five other species present in Colombia: Z. albiella Traub, Z. carinata Herb., Z. puertoricensis Traub., Z. robusta (Sweet) Baker y Z. rosea (Spreng.) Lindl. The last four were registered for the first time for Colombia. We include a key for the identification of the species.