The Ouellet-Robert entomological collection (QMOR) is one of the larger Canadian university entomological collections and the second largest in Quebec. It comprises 1.5 million specimens, covering more than 20,000 species. Aquatic insects from many regions of the world are particularly well-represented. This dataset includes 38,295 digitized lots from the collection (192,000+ individuals), representing the orders Odonata, Trichoptera and Ephemeroptera. Data served via Canadensys at http://data.canadensys.net/ipt/resource?r=lemq-specimens. This data is provided as a resource for SCAN users, if you use data from this collection in publications please access the data via GBIF or Canadensys web portals.