Neurotus quercus-baccarum
... that the common spangle gall on the leaves of pedunculate oak trees is produced by the gall wasp Neurotus quercus-baccarum?
... that the common spangle <a href="./Gall" id="mwDFA" rel="mw:WikiLink" title="Gall">gall</a> on the leaves of <a href="./Quercus_robur" id="mwDFE" rel="mw:WikiLink" title="Quercus robur">pedunculate oak</a> trees <i id="mwDFI">(pictured)</i> is produced by the <a href="./Gall_wasp" id="mwDFM" rel="mw:WikiLink" title="Gall wasp">gall wasp</a> <i id="mwDFQ"><b id="mwDFU"><a class="mw-redirect" href="./Neurotus_quercus-baccarum" id="mwDFY" rel="mw:WikiLink" title="Neurotus quercus-baccarum">Neurotus quercus-baccarum</a></b></i>?