| A | B |
| Lepidoptera | order that includes butterflies and moths |
| metamorphosis | change in form and habit from juvenile to adult |
| proboscis | tubular structure used by adults to drink nectar |
| cremaster | black stem from which the chrysalis hangs |
| ocelli | simple eyes of the larval stage |
| tentacles | feelers on both ends of the caterpillar |
| spiracles | holes on the side of an insect through which they breathe |
| prolegs | false legs that help grasp the leaf |
| instar | a stage in the life of a caterpillar |
| chrysalis | the pupa stage of a butterfly |
| pupa dance | wriggling motion used to dislodge the old caterpillar skin |
| larva | wormlike form that hatches from an egg |
| spinnerette | structure used to spin silk |
| thorax | middle section of an insect where the legs are attached |
| abdomen | last section of the body that holds the digestive system |
| danaus plexippus | genus and species for a Monarch |