Tetracanthella proxima Steiner, 1955: 337 Distinctive Collembola Communities in the Mesovoid Shallow Substratum: Entomobryomorpha of the Sierra de Guadarrama National Park (Central Spain) Baquero, Enrique Jordana, Rafael Ortuño, Vicente M. Zoosystema 2021 2021-01-26 43 3 37 78 Steiner, 1955 Steiner 1955 [931,1337,1363,1390] Entognatha Isotomidae Tetracanthella Animalia Collembola 9 44 Arthropoda species proxima      Tetracanthella proxima Steiner, 1955: 337.   MATERIAL EXAMINED. —  Spain• 2 specimens; SSD-1, slide 04; Ortuño et al.leg.; MZNA•  18 specimenson slide and 158 inethyl 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 specimenon slide and 27 inethyl 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. 3027953440 MATERIAL Spain Spain 9 44 SSD-1 1 3027953414 MZNA Spain 9 44 SSD-2 18 3027953424 MZNA Spain 9 44 SSD-6 7 3027953320 MZNA Spain 9 44 SSD-25 1 3027953416 MZNA Spain 9 44 SSD-10 1 1 3027953427 MZNA Spain 9 44 SSD-11 1