Length 5 to 6 mm. A slender and parallel-sided blue-green species with black patches at the base of the rather bristly tibia ('knees'), parts of the antennae and at the posterior angles of the pronotum The length of the first antennal segment is roughly equal to the width of the head. The antennae are usually very long in males. The yellow markings on the scutellum and forewings are variable.

Deciduous trees, including Birch, Alder, Apple, Lime, and Ash.

Adult: June - October

Partly predatory, feeding largely on red spider mites.

Common and widespread in Britain.

Fairly common in Leicestershire and Rutland.