Colpocephalum
... that bird lice in the genus Colpocephalum are "rapid", allowing them to outrun the preening of their host?
... that <a class="mw-redirect" href="./Bird_lice" id="mwAfU" rel="mw:WikiLink" title="Bird lice">bird lice</a> in the genus <i id="mwAfY"><b id="mwAfc"><a href="./Colpocephalum" id="mwAfg" rel="mw:WikiLink" title="Colpocephalum">Colpocephalum</a></b></i> are "rapid", allowing them to outrun the <a class="mw-redirect" href="./Preening_(bird)" id="mwAfk" rel="mw:WikiLink" title="Preening (bird)">preening</a> of their host?