Record of a new species of the genus Eumegacetes Looss (1900) is described from Falco biarmicus in Giza Province, Egypt. The new species is differentiated from the previously known species of the same genus in the shape, the
position of the testes, ovary, uterine loops and the distribution of the vitelline follicles. Full morphological Camera lucida drawings as well as microphotos are made from mounted host record among Egyptian falcon. The  taxonomic name Eumegacetes (Eumegacetes) Eumegacetes falco is suggested for the present species