589. Xestoiulus laeticollis (Porat, 1889) Iulus laeticollis Porat, 1889. Microiulus laeticollis auct. Microiulus laeticollis mierzeyewskii Jawłowski, 1925. Microiulus dudichi Verhoeff, 1927. Distribution BY, DE, DK-DEN, EE, HU, LT, LV, NL, PL, RO, RU-KGD, RU-RUC, RU-RUW, SE, UA. Habitat This millipede is particularly associated with damp habitats: Swamps and marshes, wet woodland: Fraxinus and Alnus forests and Alnus swamps (Fraxino-Alnetum, Ribeso-nigri Alnetum, Alnetum- Quercetum fluvialis). Pinus woods. Meadows. Regarded as a stenotopic hygrobiont woodland species with preference for floodplains and swamp forests in Saxony-Anhalt, Germany (Voigtländer 2011). The subspecies mirzeyewskyii found in Quercus and Pinus forest in Russia (Prisnyi 2001). Remarks Several subspecies have been described in addition to the frequently cited ssp. mirzeyewskii.

Published as part of Kime, Richard Desmond & Enghoff, Henrik, 2017, Atlas of European millipedes 2: Order Julida (Class Diplopoda), pp. 1-299 in European Journal of Taxonomy 346 on page 171, DOI: 10.5852/ejt.2017.346, http://zenodo.org/record/3866525