[1]
U. Irmler, “The Neotropical species of the genera Pseudespeson Lecoq, 1994 and Espeson Schaufuss, 1882 (Coleoptera: Staphylinidae: Osoriinae)”., contrib.entomol., vol. 62, no. 2, pp. 331–360, Dec. 2012, doi: 10.21248/contrib.entomol.62.2.331-360.