Family: Pleidae

Pygmy Backswimmers

These photos supplement pages 97-103 of the Guide to Aquatic Invertebrates of the Upper Midwest. Information on the biology of Pleidae can be found on page 102. Pleidae are very tiny (2 – 2.5 mm) and their body is convex. Their antennae are shorter than the head.




Pleidae dorsal


Pleidae lateral