Helopicus subvarians

Helopicus subvarians (Banks, 1920) Notes This species is commonly known as the Vernal Springfly (Stark et al. 2012), and is broadly distributed from New Brunswick west to Ontario and south to Alabama and Florida (Kondratieff 2004, DeWalt et al. 2024). Stark and Ray (1983) suggested a univoltine life cycle for this species in Florida. In Ontario, emergence of H. subvarians was recorded from late May to early June (Harper and Pilon 1970). In New York, adults have been collected from mid-April and extending to late June (Fig. 38). State records are available from elevations ranging from 34-464 m asl (Fig. 39). Nymphs were commonly collected in the spring months from larger rivers in the Level III Ecoregions Northeastern Highlands (58), Northern Allegheny Plateau (60), and Eastern Great Lakes Lowlands (83) (Fig. 40 d).