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Phylum Arthropoda
Class Insecta
Order Ephemeroptera
Family Polymitarcyidae
Common Name Pale Burrower Mayflies
Distinguishing Characteristics
  • Mandibular tusks have spines on the top surface and are not curved upwards
Additional Pictures

     Larvae and adult range in lengths from 9-30 mm and are found burrowing in rivers, under rocks or in clay banks. Polymitarcyidae are categorized as collectors/gatherers and filter feeders.

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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