With so many of us interested in following the progress of monarch caterpillars, chrysalides, and butterflies I thought this visual might be helpful to understand the progression and timing of their lifecycle. It comes from journeynorth.org, which tracks the migration of many species of butterflies, birds, and other species.
The Lifecycle of the Monarch Butterfly
And adult monarchs typically live from 2 to 6 weeks except for the last generation of the year, which can live up to 8 to 9 months. (from https://www.fs.fed.us › wildflowers › pollinators › faqs)