Dragonfly

Adult dragonflies have two pair of wings. The back, or hind, wings are slightly larger at the base than the front wings. Dragonflies do not fold their wings when they land. Their wings extend from their body even when they are resting.

Description
The Dragonfly is a predacious aquatic insect characterized by an elongate body, agile flight and two roughly equal pairs of membranous wings. Being such a small and delicate flying animal, he Dragonfly's inclusion in an army is initially questionable. Although highly mobile because it can fly, the Dragonfly is quite weak and therefore very susceptible to attacks that other flying units would simply shrug off. However, it is immune to chemical based attacks including stink, plague, and poison. This combination of attributes and abilities makes the Dragonfly one of the cheapest animals, and lowest Research Level flying units possible. For gaining early flight capability, the Dragonfly is supreme.