Rhinoncus perpendicularis (Reich, 1797)
on Bistorta, Persicaria, Polygonum
Oviposition in a leaf axil; from here the larva descends as a borer in the stem, also pupates there.
Polygonaceae, narrowly oligophagous
distribution within Europe
Rhinoncus smreczynskii Wagner, 1937, described from Bistorta officinalis and treated by several authors as a valid species, is understood as a synonym of perpendicularis by (PESI, 2019).
Anderson & Korotyaev (2004a), Benedikt, Borovec, Fremuth ao (2010a), Delbol (2013a), Dieckmann (1972a), Friedman (2018a), Pešić (2000a, 2004a), Rheinheimer & Hassler (2010a).