Prostoia similis

Prostoia similis (Hagen, 1861) Notes Prostoia similis is commonly referred to as the Longhorn Forestfly (Stark et al. 2012). This widespread species is known from Ontario and Quebec, south to South Carolina, and west to Missouri (DeWalt et al. 2024, Grubbs and Baumann 2023). Krueger and Cook (1981) studied P. similis in central Minnesota and found that larvae displayed a univoltine-fast life cycle similar to previous studies of P. completa. Hitchcock (1974) reported collections of this species from Connecticut streams during April. In New York, adults of this species were collected from early March through late June (Fig. 18), from elevations ranging from 119-569 m asl (Fig. 19) and from a wide range of stream sizes across the state (Fig. 21 a).