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Steppe-runner Eremias arguta (Pallas 1773) is one of the most widespread species of the Asian racerunners (genus Eremias) inhabiting steppes, semi-deserts and deserts of Eastern Europe, Middle and Central Asia. Several subspecies were traditionally recognized, however, their morphological variability is so high that the delimitation and establishing of formal taxonomical status of some populations was always problematic. The metric and meristic morphological characters of E. arguta from 12 populations of Kazakhstan, Uzbekistan, northwestern China and southwestern Mongolia were analyzed using different multivariate statistic methods and preliminary results of molecular analysis of mtDNA cytochrome b gene. The studied populations are clustered in five groups. Based on both morphological and molecular characters, the southernmost populations from Uzbekistan and Chimkent region (Kazakhstan) form a clearly separated group E. a. uzbekistanica, quite different from all other subspecies. The populations from the Ili River valley (southeastern Kazakhstan and northwestern China) were formerly considered as transitional ones between E. a. arguta - E. a. uzbekistanica or E. a. potanini, but in fact they represent a separate form. The easternmost samples assigned as "E. a. potanini" are deeply nested within E. a. arguta cluster and seem to be a local form with clinal variation of morphological characters.