The Spring Azure is a delicate, sky-blue butterfly that is among the first lepidopterans to emerge in spring across much of North America. Females have broader dark margins on their wings compared to the purer blue of males. It is actually a species complex with multiple closely related forms that differ subtly in flight time and host plant use.
Best time to see a Spring Azure
The best time to see a Spring Azure is April–June, when about 64% of U.S. sightings happen, based on 16,894 research-grade iNaturalist observations.
Not certain it is a Spring Azure? What bug is this? walks through what to check first and the lookalikes that catch people out.
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