Аннотация:The fauna of horseflies of the Pskov region as potential carriers of tularemia was studied. Hybomitra bimaculata, Tabanus bromius and Haematopota pluvialis pluvialis were found to be the most abundant species capable of carrying tularemia. The life cycle of these species is associated with biotopes of floodplain-swamp type, which serve as habitats for various rodents – sources of infection. Therefore, these biotopes are the two main natural foci of tularemia in the Pskov region.