Hypsibius (Hypsibius) pallidus (Ramazzotti 1964 b)
H. pallidus (Garitano-Zavala 1996)
Terra typica: Sweden (Europe)
Argentina:
• 36 ° 50 ′S, 71 °00′W; 1,500 m asl: Neuquén Province, Epulauquen Lake, mosses on soil and rock. Rossi et al. (2009)
• 39 ° 14 ′S, 70 ° 55 ′W; 950 m asl: Neuquén Province, Aluminé, Abra Ancha, lichen on soil. Rossi et al. (2009)
Bolivia:
• 16 ° 11 ′S, 68 ° 35 ′W; 3680–4000 m asl: La Paz Department, Cordillera de la Real de los Andes, Huarina, moorland floor, cushion moss. Garitano-Zavala (1995, 1996)
• 16 ° 13 ′S, 68 ° 13 ′W; 4550–4700 m asl: La Paz Department, Cordillera de la Real de los Andes, Tuni, subnival floor, cushion moss. Garitano-Zavala (1995, 1996)
Chile:
• 33 ° 24 ′S, 71 °08′W; 330 m asl: Region RM Metropolitana (Región Metropolitana de Santiago), Curacaví, mosses. Ramazzotti (1964 b)
Record numbers: Argentina: 2, Bolivia: 2, Chile: 1; total: 5.
Remarks: Hypsibius pallidus sensu lato is a possible species complex that can be confused with H. microps and species belonging to the Hypsibius convergens - dujardini complexes and therefore requires careful examination. Recent work on these taxa species groups has recognised claw details and additional morphometric characters (e.g. Miller et al. 2005, Kaczmarek & Michalczyk 2009 a). Originally described from Sweden, Hypsibius pallidus is a common European species (but it is also known from non-European localities) (McInnes 1994 a). We suggest this example should be re-examined as potentially representing a new species, questioning the presence of Hypsibius pallidus in South America.