Great Basin Naturalist


Adult pandora moths began emerging in late July, and peak daily emergence occurred during 10–15 August. The mean density of moths emerging per 929 cm2 of ground surface ranged from 0.1 to 2.4. The ratio of emerging males to females varied from 3–4:1 during the initial days of emergence to 1:1.5 during the last 10 days of August. Postemergence behavior is described and discussed in relation to egg mass deposition and species survival.