Tennessen, K.J. 2026. Description of the nymphs of Nehalennia integricollis Calvert and N. pallidula Calvert (Odonata: Coenagrionidae). Zootaxa. 5793, 2 (Apr. 2026), 587–595. DOI:https://doi.org/10.11646/zootaxa.5793.2.14.