Hypothetical phenology of Celastrina species in southern Ontario. Celastrina lucia abundance is based on eastern Ontario data (Figure 4), C. neglecta data is based on assumption of two annual flights, the first peaking in mid-June and with a generation time similar to that of C. lucia (750 degree-days). Celastrina ladon data is based on assumption of a single, earlier flight and lower overall abundance compared to C. lucia, but with similar abundance changes and length of flight period. The sum of all predicted Celastrina abundances is compared to actual observation frequencies in Figure 5.