Agriotes is a genus of Click Beetle. Some species in the group can be agricultural pests when larvae, which look like thin, elongate, reddish-brown grubs or worms.
The larvae are called Wireworms, and they eat organic matter in the soil. In some instances, the larvae will graze on roots and bore into tubers.
Some species can be particularly damaging to vegetables and crops, affecting vigour and in some cases, can kill younger plants.
The adult beetle itself is not damaging to plants. They're most common in meadows and grassland, but they'll sometimes be found in gardens and allotments, too.