Transmission to Ovins and Caprins of malignant theileriasis due to Thieileria hirci (= T. ovis) was referred to Rhipicephalus bursa in Serbia, Greece, and in the north and west of Iran.
Yet, this tick has never been found in the south and southeast of Iran, and nevertheless thousands of animals died during theileriasis epidemics.
According to the author, some ticks belonging to genus Hyalomma could be incriminated in the transmission