Phyllotreta nemorum, the turnip flea beetle or yellow-striped flea beetle is a species of beetle in family Chrysomelidae. The beetle is 2.4-3.5 mm long and black with sinuate yellow bands running down its elytra.[1] It is found in the Palearctic.[2]
The beetle feeds on various wild and cultivated Brassicaceae, and also on mignonettes (Reseda spp.) and brooklime (Veronica beccabunga). Adults consume leaves while larvae are leaf-miners. They are themselves preyed on by swifts (Apus apus) and parasitised by braconid and eulophid wasps.[1]