Abdomen (noun) – The third and last segment of an insect’s body, located at the tail end.The heart, reproductive organs and much of the digestive system are located in an insect’s abdomen.
Antenna (noun, plural: antennae) – one of a pair of slender structures located on the head of some insects.
Butterfly antennae are used for balance, detecting smells and wind speed.
Thorax (noun) – The second and middle segment of an insect’s body. Butterfly wings and legs are attached to the thorax.
Wings (noun)- Butterflies have four wings, two forward wings and two hind wings that are mirror images of each other.