Hydrothassa marginella (Linné, 1758)
Family: Chrysomelidae
Size: 3.5 to 4.5 mm
Distribution: North to Central Europe
Biology: Lives on  Ranunculus species and Caltha palustris
Location: Germany, Thuringia, Harra
leg.det. U.Schmidt, 2005
Photo: U.Schmidt, 2010

Hydrothassa marginella (big)

Hydrothassa marginella  (Flickr)

Hydrothassa marginella  (Wikimedia Commons)

Location List Coleoptera Germany Thuringia  (Google Drive)

Locality List Chrysomelidae Palaearctic Region  (Google Drive)