Ribaut, H. (1905). Notes Myriopodologiques II. Bulletin de la Société d'histoire naturelle de Toulouse, 38: 35-42. Toulouse, available online athttps://gallica.bnf.fr/ark:/12148/bpt6k65592787/f47.item.zoom page(s): 35; note: As Iulus (Leptoiulus) silvicola umbratilis, n. subsp. [details]
Sierwald, P.; Decker, P.; Spelda, J. (2024). MilliBase. Julus silvicola umbratilis Ribaut, 1905. Accessed at: https://www.millibase.org/aphia.php?p=taxdetails&id=953740 on 2025-03-31
original descriptionRibaut, H. (1905). Notes Myriopodologiques II. Bulletin de la Société d'histoire naturelle de Toulouse, 38: 35-42. Toulouse, available online athttps://gallica.bnf.fr/ark:/12148/bpt6k65592787/f47.item.zoom page(s): 35; note: As Iulus (Leptoiulus) silvicola umbratilis, n. subsp. [details]