What is the state insect of Montana?

The state insect of Montana is the mourning cloak butterfly. This butterfly is known for its distinctive dark brown wings with purple and yellow markings along the edges. It is one of the longest-living butterflies, often surviving through the winter by hibernating in tree bark or other sheltered areas. The mourning cloak butterfly is commonly found in Montana’s forests and woodlands, where it feeds on tree sap and rotting fruit. It was designated as Montana’s state insect in 2001, symbolizing the state’s diverse wildlife and the butterfly’s resilience.