Elucidating the nomenclature and taxonomy of Phalaena euphemia Stoll, 1781, the type species of the genus Heraclia Hübner, [1820] (Lepidoptera, Noctuidae, Agaristinae) Author Collins, Abigail H. 0000-0003-2802-9043 African Natural History Research Trust, Street Court, Kingsland, Leominster, Herefordshire HR 6 9 QA, United Kingdom & School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, Norfolk NR 4 7 TJ, United Kingdom kdt 18 fju @ uea. ac. uk; https: // orcid. org / 0000 - 0003 - 2802 - 9043 kdt18fju@uea.ac.uk text Zootaxa 2021 2021-10-06 5048 2 237 252 journal article 4118 10.11646/zootaxa.5048.2.5 acdb4ca0-a3df-4441-a8bc-9396670daed9 1175-5326 5552023 EE0B0C09-34F1-42DA-B1F0-FBD6166DFB93 Heraclia geryon ( Fabricius, 1781 ) Noctua geryon Fabricius, 1781 , Species Insectorum, Exhibentes Eorum Differentias Specificas, Synonyma Auctorum, Loca Natalia, Metamorphosin Adiectis, Observationibus, Descriptionibus 2: 216. Eusemia pallida Walker, 1854 , List of the specimens of lepidopterous insects in the collection of the British Museum. Part 1 : 52. (syn. nov.) Eusemia niveosparsa Westwood, 1881 , Appendix IV. Entomology. In: Oates, F. Matabele land and the Victoria Falls . 355 (syn. nov.)