گزارش SIMULIUM MARGARITAE و آسيبهاي ناشي از آنها در احشام منطقه ارسباران

After report of animal death and sever dermal damages by one kind of insect in Arasbaran area, specimens of the insect are collected on cows and buffaloes during spring of 1998. Preliminary study on collected specimens in research center of natural resources and animal affairs of east Azarbaijan indicated that, they were belong to Simulium genus of blackflies (Fam. Simuliidae). For complementary identification 11 females of them sent to department of zoology in comennius university of Slovaakia. According to L. Jedlicka studies most of specimens were Simulium margaritae (Rubtsov 1958). Accidents and death in the cause of blackflies happen merely by collectively attack and sever bloodsucking of them probably, therefore donʹt interfere any pathogen in it. Prevalence of simulids and accidents of them are reported for the first time of Arasbaran and Iran.