Paragnetina media (Walker, 1852)

Paragnetina media (Walker, 1852) View in CoL

Notes

Paragnetina media is commonly known as the Embossed Stone ( Stark et al. 2012). The range of this widespread species extends from New Brunswick northwest to the Northwest Territories, west to Minnesota and Iowa, and southwest to Arkansas ( Hart et al. 2025, Stark 2004, DeWalt et al. 2024). A two-year life cycle has been reported for P. media in Michigan ( Heilman and Knight 1970) and Kentucky ( Tarter and Krumholz 1971). Harper (1973 b) reported a three-year life cycle and parthenogenetic females in southern Ontario. In New York, adults have been collected between early June and mid-July (Fig. 33 View Figure 33 ) from larger streams and rivers at elevations ranging from 50-658 m asl (Fig. 34 View Figure 34 ) and is broadly distributed across much of the state (Fig. 37 b View Figure 37 b ).