Leuctridae Klapalek 1905

Leuctridae Klapálek, 1905 Notes Leuctridae are commonly referred to as Needleflies (Stark et al. 1998, Stark et al. 2012) and can be collected in large numbers as adults, especially in forested headwater streams during late spring and throughout the summer. Two genera and 13 species of Leuctridae occur in New York. Similar to Capniidae, there is not a recent review of the eastern North American species of Leuctridae, especially for species-rich Leuctra Stephens, 1836. The treatment of this family by Hitchcock (1974) in Connecticut, the Harper and Harper (1997) preliminary report on Leuctra, and the treatments of the L. duplicata and L. tenuis species groups by Grubbs and Wei (2017) and Grubbs (2015), respectively, were useful taxonomic references over the course of this study. Scott A. Grubbs is currently revising Leuctra and taxonomic changes are likely. Adult flight periods for this family range from mid-March through early December (Fig. 13). This family has been reported from a wide range of elevations from 2-1610 m asl (Fig. 8, Fig. 14). Leuctra duplicata, L. grandis, L. tenuis, and L. tenella have been reported from the widest range of elevations (Fig. 14). The narrowest ranges were reported for species reported from relatively few locations including, L. alexanderi, L. maria, L. triloba, and L. variabilis.