This data set is comprised of observations of invertebrates from North America with a focus in Arizona and northwestern Mexico. Observations were made by Laura Steger and Rick Overson. Odonate abundance for a survey reach is listed as single (1), rare (2-4), uncommon (5-12), common (13-100), or abundant (100+), unless otherwise noted. Please reach out to us if you have any questions about the data in this collection.