The caterpillar, along with most others in the Saturniidae family, spins a silk cocoon. This is where it then spends its time as a pupa, the stage of development before the moth becomes an adult.

The echo moth caterpillar can be toxic if eaten ... if possible,” she said. When they form cocoons, they will hang on for a few weeks until they emerge as moths. The best bet, Lebouitz ...

Characteristic cocoon with final instar larva and pupa of the alpine rose leaf-miner moth on Rhododendron ferrugineum in Ardez, Graubünden, Switzerland. Alpine rose leaf-miner moth adults resting ...