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Top 20 Directory:
Top : Science : Biology : Flora_and_Fauna : Animalia : Arthropoda : Insecta : Ephemeroptera
Sites:
  		• Ephemeroptera: Taxonomy of the mayflies, with a brief description and list of references, from Tree of Life.
  		• Ephemeroptera: Introduction from John R. Meyer's Entomology class.
  		• Ephemeroptera Galactica: Information on mayflies (Ephemeroptera) for scientists and the layman.
  		• Gordon Ramel's Mayfly (Ephemeroptera) Page: An introduction to biology, classification, and ecology of mayflies, the Ephemeroptera.
  		• Mayflies: Fact sheet on Hexagenia spp. from Ohio State University.
  		• Mayflies of the United States: Information on hundreds of species, including distribution maps and county checklists.
  		• Mayfly Central: Mayfly research and resources at Purdue.
  		• Shadfly.com: Stories, pictures, and videos of the mass emergence of shadflies (also known as mayflies, dunes, and dayflies) in North Bay, Ontario, Canada.
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