The Knopper Gall, Andricus quercuscalicis, Spier's, Beith, Ayrshire, Scotland
<a href="//commons.wikimedia.org/wiki/User:Rosser1954" title="User:Rosser1954">Rosser1954</a> Roger Griffith
2010-09-06
<span class="int-own-work" lang="en">Own work</span>