What is a chrysalis?

A chrysalis specifically refers to the pupal stage of a butterfly, and it is also associated with some moths. During this stage, the insect undergoes significant transformation as it develops from larva to adult. The chrysalis is a protective casing that allows the developing butterfly to metamorphose into its final form, where it will eventually emerge as a fully developed adult butterfly. This stage is vital in the life cycle of butterflies, marking the transition between the caterpillar phase and the emergence of the winged insect.

The term "chrysalis" is not used to describe the pupa of other insects such as spiders or beetles. While some beetles do have a pupal stage, they are not referred to as a chrysalis, making that option incorrect. Larval stages refer to the earlier developmental phase before pupation and do not include the chrysalis stage. Additionally, insect eggs represent an even earlier stage in the life cycle and do not fit the definition of a chrysalis. Understanding these distinctions clarifies why "the pupa of a beetle or butterfly" is the correct interpretation of a chrysalis.