Monarch Caterpillar

August 23, 2025

What a great surprise to find a caterpillar of a Monarch Butterfly (Danaus plexippus) on some Butterfly Weed (Asclepias tuberosa) yesterday. Quite a small caterpillar. It’s on the leaf of the Butterfly Weed, which is between 1/2 and 3/4 inch wide.

The Monarch has four phases in its life; egg, larva, pupa, and adult. This caterpillar is the larval stage. Developing from egg to adult in the warmth of summer happens in about 25 days.

_______________________

If you would like to receive my daily blog posts by email, sign up here!

Published by

Brenda Clements Jones

Brenda is a certified Virginia Master Naturalist, a Habitat Defender for Shenandoah National Park, and a devoted fan of Mother Nature. She lives in a cabin in the Blue Ridge Mountains near Shenandoah National Park, and hikes up to the higher elevations of her mountain often to see what nature is up to. Her constant hiking companion is a camera that captures nature as it unfolds through the seasons. It’s her goal to share the natural world around her through her photographs.