Abdomen -The rear part of an insect's body containing the heart, reproductive organs and most of the digestive system.
Antennae - Slender organs on a butterfly’s head used for smelling and sensing.
Caterpillar - After hatching from the egg, the worm-like second stage of a butterfly's life, also called larva.
Chrysalis - The hard case formed at the third stage of a butterfly’s life, also called pupa.
Flight Range - The geographic area where a butterfly is most likely to be seen.
Forewings - The two upper wings of the butterfly closest to the head.
Hindwings - The wings at the back of the butterfly closest to the abdomen.
Host Plant - The plant on which the female butterfly lays her eggs. Usually, the host plant is the food for the butterfly's larvae.
Larva - The caterpillar or second stage of the butterfly life cycle.
Metamorphosis - The transformation that takes place inside the chrysalis from caterpillar to adult butterfly.
Nectar Plant - A plant favored by a butterfly as a food source.
Proboscis - The tube at the head of the butterfly through which it draws nectar and other nutrients.
Puddling - The practice of gathering at mud puddles or moist areas, usually by adult males, to obtain moisture, nutrients and salts.
Pupa - The third stage of the butterfly life cycle also known as a chrysalis in which metamorphosis takes place.