Distinctive Collembola Communities in the Mesovoid Shallow Substratum: Entomobryomorpha of the Sierra de Guadarrama National Park (Central Spain) Author Baquero, Enrique University of Navarra, Faculty of Sciences, Department of Environmental Biology, University Campus, 31080, Pamplona (Spain) ebaquero@unav.es Author Jordana, Rafael University of Navarra, Faculty of Sciences, Department of Environmental Biology, University Campus, 31080, Pamplona (Spain) rjordana@unav.es Author Ortuño, Vicente M. Grupo de Investigación de Biología del Suelo y de los Ecosistemas Subterráneos, Departamento de Ciencias de la Vida, Facultad de Ciencias, Universidad de Alcalá, E- 28871, Alcalá de Henares, Madrid (Spain) vicente. ortuno @ uah. es vicente.ortuno@uah.es text Zoosystema 2021 2021-01-26 43 3 37 78 journal article 8557 10.5252/zoosystema2021v43a3 cd89b152-32bd-42cc-be33-a74a856fb5e4 1638-9387 4487162 urn:lsid:zoobank.org:pub:EA621D7C-F9AE-460B-8EBF-9E932862D4FE Tetracanthella proxima Steiner, 1955 Tetracanthella proxima Steiner, 1955: 337 . MATERIAL EXAMINED. — Spain • 2 specimens ; SSD-1 , slide 04; Ortuño et al. leg.; MZNA • 18 specimens on slide and 158 in ethyl alcohol; SSD-2 , slides 01, 02, 05, 07 and 12-14; same data; MZNA • 7 specimens ; SSD-6 , slides 04, 06 and 09; same data; MZNA • 1 specimen on slide and 27 in ethyl alcohol; SSD-25 , slide 07; same data; MZNA • 1 juvenile ; SSD-10 , slide 05; same data; MZNA • 1 specimen ; SSD-11 , slide 16; same data; MZNA . REMARKS Originally described from the Sierra de Guadarrama ( Steiner 1955 ), according to Deharveng (1987) , its distribution extends from the south of the Ebro River (Iberian Peninsula) to the Atlas Mountains in Morocco . Throughout Europe ( de Jong et al. 2014 ), it is present from Bulgaria , North Africa, Portugal (mainland), Spain (mainland) and Ukraine . The citations of Cassagnau (1959) and Selga (1966a , 1971 ) probably refer to the nearby species T. similis Deharveng, 1987 .