Aquatic Insects of Michigan
by Ethan Bright, Museum of Zoology Insect Division and School of Natural Resources and Environment
Nepidae - Water Scorpions
Two genera are found in Michigan, 3 species of Ranatra and 1 species of Nepa. Principally lentic, Ranatra are commonly found in stills waters among overhanging plant vegetation and thin woody debris, but are also found in similar structures along streams, especially undercut banks. Nepa are most often found in shallow, muddy substrates of marshes or slow-moving streams in sections with little vegetation. This family has been thoroughly reviewed by Menke (1979) and Sites and Polhemus (1994).
Nymphs (based on Menke 1979)
Menke AS. 1979. Family Nepidae, pp. 70-75in Menke AS (editor), The semiaquatic and aquatic Hemiptera of California. Bulletin of the California Insect Survey 21:1-166 + xi.
Page created: July 16, 2003; Last edited: November 7, 2013 (EB)