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Phylum Arthropoda
Class Insecta
Order Diptera
Suborder Cyclorrhaphous-Brachycera
Family Ephydridae
Common Name  
Distinguishing Characteristics
  • Anal division somewhat tapered, usually ending in an elongate retractile respiratory tube that lacks dorsal tubercles
  • Integument of posterior abdominal segments covered with setae or spinules, or with setae bearing tubercles on some segments
Additional Pictures



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Additional Links



Merritt, R W., K W. Cummins, and M B. Berg. An Introduction to the Aquatic Insects of North America. Dubuque, Iowa: Kendall/Hunt Company, 2008