West Ridge Nature Preserve, Park Advisory Council (PAC)

Chicago Park District

Monarch Butterflies Make a Welcome Appearance

Because Monarch butterflies are endangered, our steward couldn’t wait to share the news of their appearance in our nature preserve. He took the butterfly photo below. Also included are photos of the larvae (caterpillar) and pupa (chrysalis). These photos were taken by our president.


It is amazing that complete metamorphosis starts with an egg (not depicted below) the size of a pinhead and ends with a butterfly in a little more than a month. The egg, larvae, pupa and butterfly complete one life cycle.