Suggested Keys for Group 2 (EPT)

Ephemeridae (common burrower mayflies)
Ephemeridae (common burrower mayflies)

These lists of keys are suggested lists, they are not comprehensive and there may be taxa included in the taxonomic certification examinations that are not included in the more general keys (e.g., Merritt and Cummins). We expect taxonomists to be aware of recent literature changes and know how to identify the genera even though there may not be any keys. A good taxonomist needs to know how to work in the absence of “keys.” While we will attempt to include primary literature it is the candidate’s responsibility to be familiar with the current status of the group in question.

Suggested Keys for Group 2 (EPT)


  • Mayfly larvae of Wisconsin. 2016. Klubertanz, T. H. University of Wisconsin Extension Publications, Madison, Wisconsin.
  • Updates, additions, and probable future changes to Merritt, Cummins, and Berg – Chapter 11, Ephemeroptera. 2011. Steven Burian. Download (15MB)


  • Stoneflies: nymphs of North America, 2nd edition. 2002. Stewart, K. W., and B. P. Stark, The Caddis Press, Columbus, Ohio.
  • The stoneflies (Plecoptera) of Alaska and Western Canada. 2006. Stewart, K.W.,  and M. W. Oswood. The Caddis Press, Columbus, Ohio.


  • Trichoptera: larvae of the North American caddisfly genera, 2nd edition. 1996. Wiggins, G.B., University of Toronto Press, Toronto, Canada.