dcsimg
Centre for Biodiversity Genomics. Centre for Biodiversity Genomics. Year: 2011.   cc-by-nc-sa-3.0

Hexagenia rigida is a species of mayflies in the family common burrower mayflies.

EOL has data for one attribute:

Known occurrences, collected specimens and observations of Hexagenia rigida McDunnough 1924. View this species on GBIF