Kluge, N.J. 2021. Erratum: NIKITA J. KLUGE (2020) Demoulinia Gillies 1990 and two unnamed genera of the plesiomorphon Protopatellata (Ephemeroptera, Baetidae) from South Africa. Zootaxa, 4820, 438–464. Zootaxa. 4903, 4 (Jan. 2021), 600–600. DOI:https://doi.org/10.11646/zootaxa.4903.4.10.