Galeruca tanaceti (Linnaeus, 1758)
on Tanacetum, etc.
Belgium, prov. Antwerp, bank canal Dessel-Kwaadmechelen, 20.ix.2011 © Carina Van Steenwinkel: fresh cluster of eggs
Larvae communally free on the leaves. Pupation in a wide-meshed cocoon in the soil. Oviposition in groups of up to 20 eggs on dried plant stems that extend above the surrounding vegetation; the orange eggs are covered with froth, that soon dries into a shining black crust.
Asteraceae, Caryophyllaceae, polyphagous
Univoltine; hibernation as eggs.
distribution within Europe
Pictures in Rheinheimer & Hassler.
Anagnou–Veroniki, Papaioannou–Souliotis, Karanstasi & Giannopolitis (2008a), Biondi (1994b), Bukejs (2009d), Farina (2015a), Gavrilović & Ćurčić (2013a), Gavrilović, Gavrilović, Ćurčić, ao (2014a), Petitpierre i Vall (1994a), Rheinheimer & Hassler (2018a), Rozner & Rozner (2014a), Salisbury & Halstead (2011a).