See text Tenthredo (from the Greek τενθρηδών tenthrēdōn "earth nesting wasp")[1] is a genus of sawflies with more than 700 species of the family Tenthredinidae, subfamily Tenthredininae.

It is of Holarctic distribution.

Species of this genus are easily recognisable by their wasplike appearance although lacking the thin 'waist' of a true wasp.

The fore wings of these sawflies have a lance-shaped cell with a straight cross-nervure.

Larvae feed on a very wide variety of plants, each species is often restricted to one host; adults prey on flies and other insects in flowers.