Lixus bardanae (Fabricius, 1787)
Oviposition in the petiole of a low leaf or in the stem; the opening is closed with a wad of chewed plant material, that later turns dark red. The larvae bore tunnels, descending into the stem. Ultimately they also pupate here, in a frass-lined pupal chamber. One petiole or internode may harbour up to a dozen larvae.
Polygonaceae, ? monofaag
Rumex acetosa, aquaticus, crispus, hydrolapathum, patientia.
Recorded also from Rheum, but this relation is not repeated by later authors.
Also the reference to Heracleum by Balalaikins & Bukejs needs confirmation.
distribution within Europe
Balalaikins & Bukejs (2011a), Colonnelli, Osella & Cornacchia (2011a), Dieckmann (1983a), Gültekin (2007a), Gültekin, Zengin & Hayat (2004a), Rheinheimer & Hassler (2010a), Ross (1911a), Stejskal & Trnka (2013a).