Octolasion cyaneum (Savigny, 1826)

Enterion cyaneum Savigny, 1826: 181 .

Lumbricus stagnilis Hoffmeister, 1845: 35 .

Allolobophora studiosa Michaelsen, 1890: 50 .

Octolasion cyaneum: Graff 1953b: 26; Easton 1983: 483; Sims & Gerard 1999: 112; Csuzdi & Zicsi 2003: 193; Blakemore 2008: 56.

Octolasium cyaneum: Michaelsen 1900a: 506; Michaelsen 1903: 178; Wilcke 1949: 177; Zuck 1951: 128.

Octolasium cyaneum var. armoricum Bouché, 1972: 260 .

Ecology. Endogeic species. Most records from arable and grassland sites, only some records from forests. Zoogeographical distribution type. Peregrine species with Palaearctic origin and worldwide distribution (Csuzdi & Zicsi 2003).

Distribution in Germany. Central Germany (Eggert 1982; Römbke et al. 2000, 2002; Höser 2012); northern Germany (Michaelsen 1890; Graff 1954; Judas et al. 1989; Kula 1994; Irmler 1999; Römbke et al. 2000, 2002; Groth & Irmler 2012); southern Germany (Bauchhenß 1982; Schruft et al. 1982; Römbke et al. 2000, 2002; Brauckmann 2002; Sommer et al. 2002; PSMS in Bavaria: www.edaphobase.org); eastern Germany (Wilcke 1939; Füller 1953; Bösener 1965; Römbke et al. 2000); between 2003 and 2013 in Saxony (S. Krück, unpublished data); western Germany (Baltzer 1956; Schulte et al. 1989; Römbke et al. 2000, 2002; Emmerling 2001; PSMS in North- Rhine Westphalia: Haag et al. 2009).