White Sand-river or Crabwalker Mayfly (Pseudiron centralis McDunnough, 1931)
Only collection, location, collectors:
07/04/1994; Logan Co.; Trib. to Mad R. at CR 28 bridge, (adult); Kovarik (see Randolph & McCafferty, 1998).
= recent collection (since 2000);
= earlier collection.
