Richardson, H. (1907). Terrestrial isopods of the family Eubelidae, collected in Liberia by Dr. O. F. Cook. <em>Smithsonian Miscellaneous Collections (Quarterly Issue ser. 4).</em> 50: 219- 247.[details]
Boyko, C.B.; Bruce, N.L.; Hadfield, K.A.; Merrin, K.L.; Ota, Y.; Poore, G.C.B.; Taiti, S. (Eds) (2024). World Marine, Freshwater and Terrestrial Isopod Crustaceans database. Ethelum quadrimaculatum Richardson, 1907. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=883587 on 2024-08-05
Marine Species Traits editorial board (2024). Marine Species Traits. Ethelum quadrimaculatum Richardson, 1907. Accessed at: https://marinespecies.org/traits./aphia.php?p=taxdetails&id=883587 on 2024-08-05
original descriptionRichardson, H. (1907). Terrestrial isopods of the family Eubelidae, collected in Liberia by Dr. O. F. Cook. <em>Smithsonian Miscellaneous Collections (Quarterly Issue ser. 4).</em> 50: 219- 247.[details]
basis of recordSchmalfuss, H. (2003). World catalog of terrestrial isopods (Isopoda: Oniscidea). <em>Stuttgarter Beiträge zur Naturkunde Serie A (Biologie).</em> 654: 1-341., available online athttps://www.biodiversitylibrary.org/page/60882444[details] Available for editors
Present Inaccurate Introduced: alien Containing type locality