Kinds of arthropods affect local sheep in the eastern region of Saudi Arabia

Farm animals have a high economic importance in our country and also all over the world. These animals can be infected by external parasites causing severe damage, which resulted in losses of animal production. The present study different parasites attacking our local farm animals ( sheep ) in the Eastern region of Kingdom of Saudi Arabia. The result of study is the following parasites 1- lice: Bovicola (Damalinia) ovis. (Schrank, 1781) 2- Myiasis: Oesterus ovis, which spread in Dammam and Al-Khobar, and Cochliomyia hominivorax (Coquerel,1858) (screw-worm) Al-Ahssa farms. 3- Ticks: Few numbers of only one species Rhipicephalus (Rhipicephalus) turanicus (Latreille, 1806) were collected. Key words: Bovicola (Damalinia) ovis, Oesterus ovis, Rhipicephalus (Rhipicephalus) turanicus, Cochliomyia hominivorax,sheep, Saudi Arabia .