Photo of first instar monarch caterpillar

After hatching from an egg, monarch caterpillars live about 10-14 days. (Read about the monarch butterfly life cycle here) However, a lot happens in that time. The larval stage of a monarch is called a caterpillar. When the caterpillar first hatches, it is 2-6 mm long. As it grows, it molts — sheds its skin…

Read More