Mydas clavatus, the clubbed mydas fly, is a species of Mydas fly that is native to temperate, eastern North America. It is named for its clubbed antennae, which is however a general feature of the Mydas flies. An orange to red mark on the abdomen is distinctive. It is a Batesian mimic of certain spider wasps, and is consequently quite bold in its movements. Adults fly in mid-summer.

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