<i>Quinquelaophonte Aurantius</i> sp. nov., a new harpacticoid species (Copepoda: Harpacticoida: Laophontidae: <i>Quinquelaophonte</i>) from New Zealand CharryMaria P. WellsJohn B. J. KeesingVaughan F. SmithKirsty StringerTristan J TremblayLouis A. 2018 <p>The new species <i>Quinquelaophonte aurantius</i> sp.nov. is described, based on specimens collected in Portobello Bay, New Zealand. The species is distinguishable for having long fine setules in the anal operculum distal edge, a breadth ratio of caudal rami length above 3.5, and a rudimentary antenna abexopodal spine. This new species differentiates from <i>Q. parasigmoides</i> and <i>Q. wellsi</i> on the following autapomorphs; short spine-like outer seta in segment 2 of females P3 endopod and the partial reduction of setae in spines from male P3 and P4, longer V-shaped caudal rami, an almost non-existent terminal portion of the antenna exopod with short lateral setae. Phylogenetic analyses demonstrate the position of <i>Quinquelaophonte</i> within the family Laophontidae.</p> <p><b>Publication LSID:</b><a href="http://www.urn:lsid:zoobank.org:pub:D5E5EB23-8348-446D-9606-EA8B27EC0EDC" target="_blank">urn:lsid:zoobank.org:pub:D5E5EB23-8348-446D-9606-EA8B27EC0EDC</a></p> <p><b>LSID for Q. aurantius:</b><a href="http://www.urn:lsid:zoobank.org:act:834C4218-209B-4B70-8AD5-35512B5FCB29" target="_blank">urn:lsid:zoobank.org:act:834C4218-209B-4B70-8AD5-35512B5FCB29</a></p>