[Intermediary hosts of Dicrocoelium lanceolatum in Lebanon and Syria (author's transl)].

The authors describe the biological cycle of the Trematoda Dicrocoelium lanceolatum in Lebanon and in Syria: two principal first hosts are the Gastropoda: Theba syriaca and Xerophila vestalis; the second intermediate host is the ant Formica (S.) rufibarbis var. clarorufibarbis very common near fresh water in herbous lands, over 1,000 m of altitude. The last host is the Sheep, the Cow and probably the Goat. A humain case is commented.