Brachypalpoides lentus

External images Wing length 10–12 mm. The legs are black; tergites 2 and 3, and base of tergite 4 in female, red. Tip of abdomen black. Mimics sawflies.^{[2] [3] [4][5]} The larva is not described but is included in keys in It is illustrated by Rotheray (1993)^[6]

Scandinavia South to the Pyrenees and central Spain. Ireland East through central Europe into European parts of Russia; southern Europe East to Yugoslavia and Greece and into Asia Minor.^[7][8]

A forest species associated with mature trees of Fagus, Picea and Quercus and including evergreen oak forest.^[9]