Spiny Crawler Mayflies
These photos supplement pages 49-62 of the Guide to Aquatic Invertebrates of the Upper Midwest. Information on the biology of Ephemerellidae can be found on page 57.
These photos supplement pages 49-62 of the Guide to Aquatic Invertebrates of the Upper Midwest. Information on the biology of Ephemerellidae can be found on page 57.