The larvae live in the streams mentioned before and are mainly dependent on the water plants. The larvae need the stems and leaves, especially in areas with stronger currents to hold on. Hence it is extremely rare to find them in barren locations, flat expiring banks, or areas with a smooth stone floor. They also live in small natural lakes or ponds characteristic for limestones bedrock. They live in quieter areas between alluvial leaves or on exposed roots of the vegetation. They can be found on submerged plants such as waterweed (Elodea sp.), floods for water crowfoot ("Ranunculus fluitans") or other plants, submerged from a few centimetres to several decimetres.