Host plants:
The caterpillar lives on species of oak (Quercus sp.). I found it in Sardinia on Montiferru in 1000m asl on holm oak (Quercus ilex).
Habitat:
Catocala dilecta inhabits warm oak forests.
Life cycle:
The egg overwinter. The caterpillar lives from April to June. The moths fly from late June to September.
Remarks:
Catocala dilecta occurs from North Africa across southern and southern parts of Central Europe and Asia Minor to the Caucasus and southern Russia. In Europe, the moth is widespread in the Mediterranean (Iberian Peninsula, Southern France, Italy, Greece, and on many islands in the Mediterranean), as well asdisjunct in Central France, the Southern Alps, eastern Austria, Hungary and Romania, etc.