Figure 6 from: Schmidt BC, Layberry RA (2016) What Azure blues occur in Canada? A re-assessment of Celastrina Tutt species (Lepidoptera, Lycaenidae). ZooKeys 584: 135-164. https://doi.org/10.3897/zookeys.584.7882

Figure 6 - Hypothetical phenology of Celastrina species in southern Ontario. Celastrina lucia abundance is based on eastern Ontario data (Figure 4), Celastrina 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 Celastrina lucia (750 degree-days). Celastrina ladon data is based on assumption of a single, earlier flight and lower overall abundance compared to Celastrina 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.