Pelenomus quadrituberculatus (Fabricius, 1787)
on Fallopia, Persicaria, Polygonum
parasite
The yellowish white larvae feed ectophagously at the undersides of the leaves. They carry a lump of frass on the back. Pupation in a cocoon, its inside lined with secretion, in the soil.
host plants
Polygonaceae, narrowly oligophagous
Fallopia convolvulus; Persicaria hydropiper, lapathifolia, maculosa. Polygonum aviculare.
distribution within Europe
synonyms
Phytobius quadrituberculatus.
references
Dieckmann (1972a), Nilsson (2005b), Rheinheimer & Hassler (2010a).