Stefan F. Wirth<p>The <a href="https://biologists.social/tags/woodlouse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>woodlouse</span></a> <a href="https://biologists.social/tags/Oniscus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Oniscus</span></a> <a href="https://biologists.social/tags/asellus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>asellus</span></a> (Oniscidae) is originally distributed in Western <a href="https://biologists.social/tags/Europe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Europe</span></a>, but today one of the most common isopods in <a href="https://biologists.social/tags/CentralEurope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CentralEurope</span></a>, occuring e g. in dead wood or <a href="https://biologists.social/tags/leaflitter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>leaflitter</span></a> and is neozoon in North America. D. T. Bilton (2008), names two morphologically/ecologically different <a href="https://biologists.social/tags/subspecies" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>subspecies</span></a>, O. asellus asellus and O. asellus <a href="https://biologists.social/tags/occidentalis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>occidentalis</span></a>. </p><p>© <a href="https://biologists.social/tags/StefanFWirth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>StefanFWirth</span></a> Bln 2025</p><p>Reference</p><p>D. T. Bilton (2008):<br><a href="http://dx.doi.org/10.1111/j.1096-3642.1994.tb01478.x" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">http://</span><span class="ellipsis">dx.doi.org/10.1111/j.1096-3642</span><span class="invisible">.1994.tb01478.x</span></a></p><p>Photos<br>O. asellus, <a href="https://biologists.social/tags/Berlin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Berlin</span></a> © S. F. Wirth 2020, edit 2025</p>