Ostrocerca truncata ( Claassen, 1923 )

Ostrocerca truncata ( Claassen, 1923) View in CoL

Notes

Ostrocerca truncata is commonly referred to as the Truncate Forestfly ( Stark et al. 2012). The distribution of this species extends from Maine west to Ontario and south along the Appalachian Mountains to Alabama, with a westward extension to Kentucky and Indiana ( DeWalt et al. 2024, Grubbs and Baumann 2023). Harper et al. (1991 b) and Grubbs et al. (2005) both reported a fast univoltine life cycle with a summer egg diapause for O. truncata . In New York, adults of this species have been collected from late March through mid-May (Fig. 18 View Figure 18 ). This species occupies a wide range of elevations (26-570 m asl; Fig. 19 View Figure 19 ) and occurs in smaller streams and springs in Level III Ecoregions Northeast Highlands (58), Northern Allegheny Plateau (60), and Eastern Great Lakes Lowlands (83) (Fig. 20 c View Figure 20 c ).