Career
He wrote with Charles Oberthür Catalogue raisonné des Lepidoptères des Bouches-du-Rhône (principalement des environs de Marseille et d"Aix). Premier partie, Rhopalocèresearch Marseille: Librairie Ruat, 1899.
Gédéon Foulquier lived in Marseille.
His collection is held by Musée Pyrénéen in Lourdes.