| A | B |
| head | a part of the body that contains the mouth parts, the eyes, antennae, spinnerettes etc. |
| True legs | are the front legs of a caterpillar and are used for clasping. They stay throughout all stages. |
| Ledipotera | a family of insects that contain butterflies and moths |
| Setae/bristles | hair on the catepillar to protect it from changes in the environment. |
| Prolegs | back legs of a caterpillar with suction cups for gripping. these disappear at stage four. |
| Molting | discarding of the catepillar's exoskeleton (skin). |
| Larvae | catepillars that hatch from eggs and turn into butterflies. |
| Abdomen | the part of the butterfly behind the wing. |
| Spirialle | breathing holes for respiration on caterpillars of insects. |
| Thorax | the middle part of the body where the wings are attached. |
| Antennae | structures found on a butterfly's head used for smell and feel. |