Grubbs, S. A. (2010). Leuctra usdi, a new stonefly (Plecoptera: Leuctridae) of the L. tenuis (Pictet) species group from the southeastern U.S.A. plus three new Alabama state records. Zootaxa, 2498(1), 59–64. https://doi.org/10.11646/zootaxa.2498.1.5