Vineyards are a very peculiar landscape in South of the Alps in Switzerland and in Ticino, are characterized by a remarkable wealth of types. In this study we intend to define indicators of biodiversity of vineyards based on spiders and ground beetles communities. For this purpose, we selected 48 vineyards based on 3 factors: slope, aspect and landscape type surrounding vineyards. Results may be summarized in 4 points: 1 - 246 species of spiders and 89 of ground beetles were identified, dominant species show various microclimatic preferences; 2 - communities are mainly affected by environmental and management factors that can promote xerophilous species relevant in conservation, 3 – 38 spider indicator species and 23 beetles indicator species were selected and show distinct ecological needs; 4 - the indicator species were observed in prestigious habitat of Ticino as dry meadows of Mt San George and the Mte Locarno and alluvial grasslands of the Magadino Plain. Finally, spider and ground beetle communities are characterized by species typical of rich meadows, open spaces and bushy xerothermic, such diversfication is also reflected based on the characteristics of indicator species. This study highlight that terraced vineyards which receive high solar radiation, represent interesting areas for the conservation of the biodiversity of spiders and ground beetles at the regional level.