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Phylum Arthropoda
Class Insecta
Order Diptera
Suborder Orthorrhaphous-Brachycera
Family Athericidae
Common Name  
Distinguishing Characteristics
  • First seven abdominal segments with only one pair of ventral prolegs
  • Most abdominal segments have one or two slender tubercles
  • Apical tubercles on the terminal segment largest
  • No posterior spiracles
  • No striations or covering of pubescence
Additional Pictures



QuickTime Movies


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