A population of the Racket-tailed Emerald, Dorocordulia libera, was found a
t Singer Lake, a collection of numerous bogs in southern Summit County, Ohi
o. This species was previously known in Ohio from two specimens collected 2
2 June 1924 from a hog in Geauga County. Between 8 June and 23 July 1999, 1
4 male and 3 female specimens were collected at Singer Lake. Notes on this
species behavior and flight season in Ohio are presented.