SUMMARY
The paper summarizes original and literature data on the geographical distribution of Adosomus roridus (Pallas, 1781). The major part of the A. roridus range lies within the Eurasian Grass-Steppe. This range has no disjunction in the regions located to the north of the Black Sea. The northern limit of it runs along the line 54°N (East) – 44°N (West). In the latitudinal direction, the species range stretches from Piedmont, Italy (~8°E; Luigioni 1929) to West Kazakhstan. According to the literature sources, A. roridus occurs in xerothermic sunny habitats, life cycle is associated with some Asteraceae (Tanacetum vulgare, Artemisia spp. and possibly Achillea millefolium).