Most states in America adopt 'official' trees, birds, and even insects. For the state of Tennessee, this is a group of no fewer than three insects recognized at an official level. The three insects in question on the Firefly, Ladybug, and Zebra Swallowtail Butterfly - all beuatiful in their own right. The state is one of a few that name more than one or two insects - most choosing to select just one.