Mating usually takes place on the wing and the male will guard the female as she flies along the water surface depositing her eggs. The nymph spend almost their entire life underwater and moult up to 15 times before they are ready to emerge.
When fully mature the final instar crawls out onto overhanging rocks or vegetation where they shed their last nymphal skin and emerge as an adult ready to hunt and mate.
When fully mature the final instar crawls out onto overhanging rocks or vegetation where they shed their last nymphal skin and emerge as an adult ready to hunt and mate.
