Slender-footed Robberfly - Leptarthrus brevirostris

Description

Length: 7-10mm. This is a dark fly with black legs except for orange on the tibiae - but this colour doesn't extend to the apex. The genus is distinguished by the thorax having long hairs but no bristles. The female's ovipositor is dorsolaterally flattened.

Similar Species

The only other European species in the genus is the rare L. vitripennis which has more brightly reddish legs and with orange on the metatarsi (black in brevirostris).

Photo ID?
Habitat

In many parts of the UK this is a species found on chalk grassland but species in the Midlands seem to have a less specific habitat preference.

When to see it

May - August

UK Status

Local and but widespread in Britain.

VC55 Status

The New Lount record below is the first known in Leicestershire and Rutland.

Leicestershire & Rutland Map

UK Map