A Contribution To the Knowledge of Ground Beetles (Col.: Carabidae) Fauna of Northeastern Iran Along With A New Record

Carabidae is the third most species-rich family of the order coleoptera. most members of the familyare predators considered beneficial components of natural and agricultural ecosystems. a faunisticstudy was conducted on the carabids of northeastern iran, including khorasan-e-razavi, khorasan-e-shomali, and golestan provinces, during 2016–2018. a total of 35 species belonging to 22 genera andseven subfamilies were identified from collected ground beetles in the studied area. the subfamilyharpalinae (58.90%) had the most number of individuals, followed by carabinae (17.45%), broscinae(13.45%), scartinae (4.36%), trechinae (3.37%), cicindelinae (2.18%) and siagoninae (0.36%). thedominant species was calosoma imbricatum deserticola (15.27%). in total, 18 species, including sixspecies from khorasan-e-razavi province, seven species from khorasan-e-shomali province, and fivespecies from golestan province, are reported for the first time for these regions. moreover, calathusdistinguendus (subfamily harpalinae) is recorded for the fauna of iran for the first time.