identification of tick species of dermacentor in some localities of iran

this study conducted during 3 years period (2002-2004). tick sampling was randomly carried out from domestic animals during seasonal activity of ticks from six provinces of iran. 2170 ticks from 151 cattle , 629 sheep, 336 goats and 32 camels were collected proin 30 prosseces with a mean number of 1.9 tick per animal. 209 dermacentor ticks collected from six provinces( kordestan, ardebil, east azarbaiejan, zanjan, khorasan and semnan) that included 23% of collected tick population in those provinces. the diversity of dermacentor is restricted to three species; d.niveus (50%), d.marginatus (27%) and d.raskemensis (23%). the maximum occurance of d.raskemensis , d.niveus, d.marginatus, were occurred in provinces of semnan, khorasan and kordestan, respectively. it can be concluded that livestock had almost different pattern of tick species in any localities thus distribution of d.raskemensis , d.niveus, d. marginatus, has been confirmed this matter.