Libellula quadrimaculata Libellula quadrimaculata Libellulidae Four-spotted Chaser Biology male female Irish distribution Common and widespread. The flight period extends from mid May to the end of August. The Four-spotted Chaser is one of the commonest Irish dragonflies. It is particularly common on sheltered lowland lakes and ponds. It can also be found on acid bogs breeding in very small pools and on sheltered upland lakes.
Adults are aggressive and very territorial.
Brown tapering abdomen , becoming black towards the posterior end. Yellow markings on sides of abdomen . Dark brown patch at the base of the wings.