Active only during the hottest part of hot, sunny, and relatively still days. The adult moths live for 1-4 days. Larvae spend 2 or more years underground. Adult moths emerge from underground between November-December. Females lay 100 to 150 eggs; they rarely fly and mostly walk. Males can make long flights but do not travel more than 100 m away from suitable habitat patches. This means it is difficult for them to colonise new areas at a distance.