Taeniopteryx parvula Banks 1918

Taeniopteryx parvula Banks, 1918 Notes Taeniopteryx parvula is commonly known as the Hooked Willowfly (Stark et al. 2012). Similar to T. nivalis, this species also has an unusual distribution in North America. In Canada, records exist from Nova Scotia and Quebec west to Manitoba and Alberta. In the USA, T. parvula has been reported from most states east of the Mississippi River plus Minnesota, Missouri, and Arkansas. There is also a disjunct band from Wyoming south to New Mexico (Stewart 2000, DeWalt et al. 2024). This species was commonly collected from larger streams and rivers in the Adirondacks (Myers et al. 2011). Harper and Harper (1983) similarly reported T. parvula from rivers in Quebec, and reported a univoltine-fast life cycle for T. parvula, with seasonal diapause similar to that of T. maura and T. nivalis. Adults have been collected in New York between early March and late April (Fig. 22) from large streams and rivers at elevations ranging from 69-548 m asl (Fig. 23) and are broadly distributed across much of the state (Fig. 25 c).