Allocapnia pygmaea (Burmeister, 1839)

Allocapnia pygmaea (Burmeister, 1839) View in CoL

Notes

Allocapnia pygmaea is commonly known as the Pygmy Snowfly ( Stark et al. 2012). This widespread and often abundant species ranges from southeastern Canada west to Iowa and North Dakota and southwest to Missouri and Tennessee ( Ross and Ricker 1971, DeWalt et al. 2024). This species inhabits small to medium sized streams, with gravel and rocky substrates that remain cool throughout much of the summer ( Ross and Ricker 1971). The larvae apparently diapause in the hyporheic zone of streams during the summer months ( Pugsley and Hynes 1985). Adult collection dates for A. pygmaea in New York range from early February through mid-May (Fig. 7 View Figure 7 ). This species has been documented from a wide range of stream sizes and elevations (5-530 m asl, Fig. 9 View Figure 9 ), and is common throughout the state (Fig. 11 e View Figure 11 e ).