Carinthia, is with her rather warm and dry subalpine climate and more than two hundred lakes, rivulets, thermal springs, marshes, vallies, lowland and alpine forests, meadows and various other biotopes, one of the richest and most interesting parts of Austria. Zoogeographically this province is situated near the point of contact of the Central and West European, Mediterranean and Pontic faunistic areas; many meridional species have their northern border of distribution just there. In July 1964 I had an opportunity to make some observations in Southern Carinthia. Particular attention was paid to the odonate fauna of the thermal system of Warmbad Villach. Nearly 14 days were spent there. New faunistic data and field observations seem worth being recorded in the present article.