The Acmon Blue is a small western butterfly, with males showing brilliant blue wings edged in orange and black while females are browner with orange submarginal spots. It has a wide distribution in the West and can be found in multiple broods throughout the warm season. The larvae are tended by ants that harvest secretions from a special gland.
Best time to see a Acmon Blue
The best time to see a Acmon Blue is April–July, when about 62% of U.S. sightings happen, based on 15,216 research-grade iNaturalist observations.
Not certain it is a Acmon Blue? What bug is this? walks through what to check first and the lookalikes that catch people out.
Recent Acmon Blue sightings near you
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