An illustration from <i>British Entomology</i> by John Curtis.  name  Hemiptera: <i><a href="//commons.wikimedia.org/w/index.php?title=Pentatoma_caerulea&amp;action=edit&amp;redlink=1" class="new" title="Pentatoma caerulea (page does not exist)">Pentatoma caerulea</a></i> or <i><a href="//commons.wikimedia.org/wiki/Zicrona_caerulea" title="Zicrona caerulea">Zicrona caerulea</a></i> (Blue Shield-bug).The plant is <i>Erysimum cheiranthoides</i> (Treacle Worm-seed)
John Curtis
1820s <div style="display: none;">date QS:P,+1820-00-00T00:00:00Z/8</div>
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