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We summarize status, seasonality, and distribution of 69 species (plus three hypotheticals) of damselflies and dragonflies recorded in Osage, Tulsa, and Washington Counties, Oklahoma. To the 28 species listed in Abbott (2005) for this tricounty area, we add 45 species, including 27 new species for Osage, 54 for Tulsa, and 39 for Washington. These additions bring the county totals to 55, 55, and 40 species, respectively. We also present phenologies for all species that are common or uncommon in this area and for a few that occur rarely but with a distinct seasonality. Provided they continue to be gathered, detailed phenological data may prove helpful for monitoring predicted effects of global climate change.