Butterflies, like many insects, have segmented bodies. The butterfly in the far background of this photo has its body split up into three parts: the head, thorax, and abdomen. The head contains the antennae, eyes, and mouth tube. the thorax contains the legs and the wings. The abdomen contains the digestive tract and reproductive organs. Butterflies have four wings, two antennae, two compound eyes, and a proboscis.