The collection has good coverage of species from the Great Lakes region, primarily from the soil studies of Nelson Hairston and the general collections of OConnor.
Most specimens remain in residue lots.
The collection, again largely comprising Great Lakes material is mostly identified and contains many reared series from the research and collections of Justin Leonard and F.E. Lyman. Many immatures from numerous exotic localities, particularly from Mexico and South America, were obtained by Carl Hubbs and others associated with the museum's Fish Division. All of these specimens will be databased as of September, 1999. The Odonata collection is second in size in the United States only to the Florida State Collection in Gainesville, but is broader in taxonomic and geographic scope than all others. The collection is world-wide in scope, but with strong emphasis on the Americas.