Device for trapping (1) hornets comprising: - an enclosure (2) intended to contain hornets in the device comprising at least one envelope; - A collection chamber (6) for insects comprising a tubular body (7) formed opening onto the envelope by an external orifice (8) and which extends towards the interior of the enclosure opening into the enclosure by an internal orifice (9); - a tank (5) integrated into the enclosure (2) and designed to contain a bait; - a separation grid (13), adapted to separate the container from said reservoir (5) from the center of the light of the enclosure; characterized in that the collection chamber (6) comprises at least one flange (10a, 10b, 10c) which extends in the lumen of the enclosure over a section of the tubular body (7) of the collection chamber (6 ),
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