Find out about monarch caterpillar stages with pictures and facts. The monarch butterfly, like all butterflies, goes through 4 main developmental stages: egg; larva (caterpillar); pupa (chrysalis); and imago (adult butterfly). What many people don’t know is that, as a caterpillar, the monarch also goes through several stages of development. On this page we’ll find … Continue reading Monarch Caterpillar Stages With Pictures & Facts