Pelenomus waltoni (Boheman, 1843)
The slimy, transparent larvae feed ectophagously on the leaves; they carry a lump of frass on their back. Pupation in a cocoon made out of secretion, attached to the leaves.
Persicaria dubia, hydropiper.
distribution within Europe
Anderson & Korotyaev (2004a), Delbol (2013a), Dieckmann (1972a), Pešić (2000a), Rheinheimer & Hassler (2010a).