Bombus vestalis - <p>A cuckoo bumblebee (<i><a href="//commons.wikimedia.org/w/index.php?title=Bombus_vestalis&action=edit&redlink=1" class="new" title="Bombus vestalis (page does not exist)">Bombus vestalis</a></i>), parasite of the bumblebee <i><a href="//commons.wikimedia.org/wiki/Bombus_terrestris" title="Bombus terrestris">Bombus terrestris</a></i>. Probably a queen, due to large size </p> © Alvesgaspar - CC BY-SA 3.0 - Wikimedia Commons
Grotte et pelouses d'Acquin-Westbécourt et coteaux de Wavrans-sur-l'Aa