[1] These sawflies are present in most of European countries and in the eastern Palearctic realm.

[2] They usually occurs in humid areas (especially fens, swamps and ponds).

[3] Tenthredo monilita can reach a length of about 10–12 millimetres (0.39–0.47 in).

[3] The adults can be encountered from May through July feeding on nectar and pollen of flowers.

Main host plant is menyanthes (Menyanthes trifoliata), but host plants also include buttercups (Ranunculus species), oregano (Origanum vulgare) and bush cinquefoil (Dasiphora fruticosa).