First record of Deudorix livia (Lepidoptera: Lycanidae) from Algeria: an important pest of pomegranate and date palm In the framework of an entomological study carried out from 2013 to 2017 aiming to identify a harmful organism in several oases of the northern Sahara of Algeria, the authors have identified the presence of Deudorix livia (Klug, 1834) (Lepidoptera: Lycanidae). This is the first record of this species in the northern Sahara of Algeria. This insect is an important pest of the fruits of two crops: the date palm and the pomegranate tree. The main criteria for determining this species are specified, as well as the host plants on which the insect was observed. The symptoms and damage that have been observed are also detailed. The authors describe the different Algerian localities where this species has been reported, and discuss the potential economic impact of this pest.