A metallic blue-green Mint Beetle (Chrysolina coerulans, in the Chrysomelidae family) crawls on a pink flower. Chrysolina is a large genus of leaf beetles in the subfamily Chrysomelinae. The Chrysolina species are phytophagous, feeding on specific food plants. August is a good month to see many attractive alpine wildflowers blooming in the Alpstein limestone range, Appenzell Alps, Switzerland, Europe.