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Volucelle zonée (Volucella zonaria)
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Cette mouche de grande taille (25 mm) a des allures de frelon, mais pourtant bien offensive. Corps trapu et tête large. Yeux globuleux brun-rouge séparés par une bande jaune. Thorax brun-rouge, abdomen brun-orangé rayé de noir. Vol rapide et stationnaire. Elle vit proche des nids de frelon, sa ressemblance est une protection mais lui permet également de s'y introduire pour y pondre ses œufs dont les larves parasiteront celles des frelons.