Leucodonta bicoloria (Denis & Schiffermüller, 1775)

Leucodonta bicoloria: Adult [S] Leucodonta bicoloria: Adult (e.l. Ticino, larva in July 2008) [S] Leucodonta bicoloria: Adult [S] Leucodonta bicoloria: Half-grown larva (Ticino, July 2008) [M] Leucodonta bicoloria: Larva in penultimate instar (e.l. Ticino 2008) [S] Leucodonta bicoloria: Larva (e.l. Ticino, Switzerland, 2008) [S] Leucodonta bicoloria: Larva [S] Leucodonta bicoloria: Larva Leucodonta bicoloria: Pupa [S] Leucodonta bicoloria: Habitat in the Ticino in July 2008 [N]

Host plants:
The larvae feed on birch (Betula).

Leucodonta bicoloria inhabits birch-rich forests such as moor edge forests, forests on sand or mountain forests (e.g. in Ticino).

Life cycle:
The pupa hibernates and the moths fly from May to July. The caterpillar lives from June to August. I found a half-grown caterpillar in about 2m above ground on a birch branch in Ticino. According to literature, the development takes place especially in the tree tops area. Pupation takes apparently place between two spun together leaves.

Endangerment: strongly endangered

Endangerment factors:
Leucodonta bicoloria is heavily endangered by the destruction of the economically worthless birch stands and the reduction of wetlands.

The distribution extends through the western and Central Europe to east Asia (Japan).