Phyllotreta diademata (Foudras, 1860)
on Isatis, etc.
parasite
Larvae at the roots.
host plants
Brassicaceae etc, narrowly polyphagous
Alliaria petiolata; Arabis; Armoracia rusticana; Brassica napus; Capparis spinosa; Cardamine flexuosa, pratensis; Cardaria draba; Cochlearia officinalis; Crambe maritima; Diplotaxis; Isatis; Lepidium perfoliatum; Lobularia maritima; Neslia paniculata; Rorippa amphibia, sylvestris; Sinapis; Sisymbrium.
phenology
Univoltine; the adult beetles hibernate in the litter.
distribution within Europe
references
Aslan & Gök (2006a), Gavrilović & Ćurčić (2013a), Ouda, Čížek & Boža (2013a), Rheinheimer & Hassler (2018a), Rozner & Rozner (2014a).