Dendrobaena octaedra (Savigny, 1826)

Enterion octaedrum Savigny, 1826: 183. Dendrobaena boeckii Eisen, 1873: 53 .

Helodrilus (Dendrobaena) octaedrus: Michaelsen 1900a: 494 .

Dendrobaena octaedra: Wilcke 1949: 177; Zuck 1951: 127; Graff 1953b: 26; Bouché 1972: 388 –389; Easton 1983: 479; Sims & Gerard 1999: 70; Csuzdi & Zicsi 2003: 121; Blakemore 2008: 32.

Ecology. Epigeic species occurring mostly in the organic layer of forest sites (Bösener 1965; Jänsch et al. 2013), acido-tolerant (Satchell 1955; Sims & Gerard 1999).

Zoogeographical distribution type. Peregrine, widespread Palaearctic species that has been introduced worldwide (Csuzdi & Zicsi 2003).

Distribution in Germany. Central Germany (Dunger 1978; Eggert 1982; Römbke 2000, 2001, 2006, 2009; Römbke et al. 2000, 2002; Höser 2012; PSMS in Saxony-Anhalt: Neubert 2011); northern Germany (Graff 1950, 1954; Judas et al. 1989; Graefe 1993; Irmler 1999; Römbke et al. 2000, 2002; Beylich & Graefe 2002; Vahder & Irmler 2012); southern Germany (Babel et al. 1986; Funke & Frank 1991; Ammer 1992; Schöpke 1998; Sommer et al. 1999, 2002; Beck et al. 1999; Römbke et al. 2000, 2002; Brauckmann 2002; Ammer & Huber 2007); eastern Germany (Wilcke 1939; Füller 1953; Bösener 1965; Dunger et al. 1972; Nöllner & Weigmann 1982; Römbke et al. 2000; La France 2002; PSMS in Brandenburg: www.edaphobase.org); western Germany (Baltzer 1956; Heuser & Topp 1989; Schulte et al. 1989; Keplin & Broll 1997; Römbke et al. 2000, 2002; Beylich & Graefe 2002; PSMS in North-Rhine Westphalia: Haag et al. 2009).