Life cycle of the monarch butterfly – introduction

A diagram of the life cycle of the monarch butterfly showing all the stages and transitions: egg, hatching, caterpillar (larva), pupating, chrysalis (pupa), elcosing (emerging), butterfly (adult), and mating and laying eggs. (20 dpi)

As humans grow from babies to adults, we look very similar in shape and anatomy (body parts) throughout our lives. Our arms and legs get longer, we grow taller, our faces become more oval than round, and so on, but we are still recognisably human. This is similarly so for other mammals (animals that feed […]

Life cycle of the monarch – the chrysalis

A green and gold chrysalis of the monarch butterfly, in close-up so that details within the chrysalis are visible, and with water droplets on its surface.

The chrysalis (or pupa) of a monarch butterfly is green – the same colour as a swan plant leaf – with a ridge of gold at its top and a series of gold dots at its base. The dots are not really made of gold, of course, but reflect the light in a similar way […]

Life cycle of the monarch – emerging from the chrysalis (eclosing)

A monarch butterfly beginning to eclose (emerge from its chrysalis) against a purple background.

About 24 hours after the chrysalis turned black, the butterfly begins to emerge (or eclose) from the chrysalis. The chrysalis splits open, and the butterfly’s head, feet, and wings emerge. The butterfly holds on tightly to the chrysalis, pulls out its abdomen, and hangs from the now-empty chrysalis casing. When it first emerges, the butterfly’s […]