The Club-tailed Dragonfly is a medium sized species with a distinctively club-shaped abdomen as suggested by its common name. Females and teneral males are mainly black with extensive yellow markings on the thorax and abdomen. As the male matures most of the yellow markings turn green although the spots on the sides of abdominal segments 7-9 remain bright yellow. Unlike most dragonflies the eyes are separate and do not meet at the top of the head, which aids identification, and in mature adults the eyes are dull green.
Very local. Some rivers in southern England and Wales (including the Thames, Arun, Dee, Severn, Wye and Teifi).
In Britain the Club-tailed Dragonfly is a riverine species typically associated with moderate to slow flowing water. It breeds in unpolluted, meandering rivers, which have a depositional nature.
