Distribution of Hetaerina titia (Odonata : Calopterygidae) in the eastern Great Lakes region

The lower Thames and Sydenham Rivers in southwestern Ontario have well esta blished populations of Hetaerina titia that represent the northern range li mit of the species. Although first discovered in 1985, these populations ar e not necessarily recently established. Adults appear from mid-August to ea rly September and are most often seen around trees and shrubs overhanging m oving water.