Voir les références bibliographique de Harold POWELL
Harold Powell (1875 in The Mumbles – 1954) was a British entomologist who specialised in Lepidoptera.
Harold Powell was a pharmacist. For part of his life he lived in Hyeres. He collaborated with Charles Oberthur notably on Faune des Lepidopteres de la Barbarie. Etudes de Lepidopterologie comparee, part 10, p. 1-459. Rennes, 1914.
His collection of Lepidoptera from Morocco is held by Service de la Défense des Cultures, Rabat. He was a Fellow of the Royal Entomological Society.
source https://en.wikipedia.org/wiki/Harold_Powell_(entomologist)
source https://www.researchgate.net/publication/336406433_Alexanor_Revue_francaise_de_Lepidopterologie_Cinquantieme_anniversaire_suite_Notes_biographiques_sur_la_vie_et_l%27oeuvre_de_Charles_BOURSIN_1901_-_1971