The name of this species of beetle appears contradictory as it is quite small, growing up to no longer than 3.5mm long. Also called the ‘Turnip Flea Beetle’, it has distinctive yellow bands on the elytra. Similar to Phyllotreta undulata.
It feeds on various wild and cultivated Brassicaceae, where it can become quite a pest. The adults feed on the leaves, and the larvae are leaf-miners.
Seen April to September, and found in various habitats, but especially cultivated land. Found mainly in England, widespread but local.
May 2015, rear garden, Staffordshire. © Pete Hillman 2015. Nikon D3200, with Sigma 105mm macro lens.