Euthera fascipennis (Loew, 1854) is recorded from Tunisia for the first time. The puparium of this species was collected in a ruderal environment (a kind of sward) in the stem of the inflorescence of Thapsia villosa L., near a larval gallery of Acmaeoderella lanuginosa (Gyll.) (Coleoptera, Buprestidae). The female and the puparium are described and illustrated.