Prodryas persephone
... that the fossil butterfly Prodryas persephone is so well preserved that individual wing scales can be seen?
... that the <a href="./Fossil" id="mwHcs" rel="mw:WikiLink" title="Fossil">fossil</a> <a href="./Butterfly" id="mwHcw" rel="mw:WikiLink" title="Butterfly">butterfly</a> <i id="mwHc0"><b id="mwHc4"><a href="./Prodryas" id="mwHc8" rel="mw:WikiLink" title="Prodryas">Prodryas persephone</a></b></i> <i id="mwHdA">(engraving pictured)</i> is so well preserved that individual <a class="mw-redirect" href="./Scale_(Lepidoptera)" id="mwHdE" rel="mw:WikiLink" title="Scale (Lepidoptera)">wing scales</a> can be seen?