Pelenomus quadricorniger (Colonnelli, 1986)
on Persicaria
parasite
The 5-6 mm long yellowish green larvae live ectophagously at the undersides of the leaves; they often carry a lump of frass on the back. Pupation in a cocoon, made of secretion, on a leaf.
host plants
Polygonaceae, monophagous
Persicaria amphibia, dubia, lapathifolia.
distribution within Europe
larva
See Urban.
synonyms
Phytobius quadricornis (Gyllenhal, 1813).
references
Dieckman (1972a), Rheinheimer & Hassler (2010a), Urban (1914b).