Pheosia gnoma (Fabricius, 1777)

Host plants:
The caterpillar lives on Betula species (birch). According to literature, supposedly poplars are rarely also used.

Habitat:
Pheosia gnoma inhabits birch-rich forests, such as bogs, sand forests, forest clearcuttings or in settlements.

Life cycle:
The moths fly in usually two broods from April to June and late July to early September. In high altitude areas should only one generation in June/July to be expected. The caterpillars are found from late May to mid-October. They are most common in the second half of September. They usually live from a height of 2m above the ground upward. The pupa overwinters.

Endangerment factors:
As the birch is cut out in the woods as a worthless softwood still preferredly, here is given a certain risk, though not too much. On the other hand, Pheosia gnoma is quite mobile.

Remarks:
Pheosia gnoma is distributed from the Pyrenees across northern and Central Europe to east Asia (Kamchatka).