Leuctra tenuis (Pictet, 1841)

Leuctra tenuis (Pictet, 1841) View in CoL

Notes

Leuctra tenuis is commonly referred to as the Narrow-Lobed Needlefly ( Stark et al. 2012). This species is distributed extensively across eastern North America, except for the USA Gulf Coastal region, and west to Oklahoma ( Grubbs 2015, DeWalt et al. 2024). Leuctra tenuis has been associated with larger streams and rivers throughout Quebec and Ontario ( Harper and Hynes 1971 a). Masteller (1983) reported peak emergence of L. tenuis in July from a stream in Pennsylvania. Adults of this species are active from mid-May through late September (Fig. 13 View Figure 13 ). Leuctra tenuis has been reported from a wide range of elevations from 72-1620 m asl (Fig. 14 View Figure 14 ) and is common and abundant throughout the state (Fig. 16 c View Figure 16 c ).