Polietes meridionalis

Polietes meridionalis

Description

Length about 10 mm. A greyish fly with a chequered appearance and striped thorax. The front spiracle is yellow and the parafacial and anterior gena is yellow/gold.

Similar Species

Polietes lardarius is very similar but this species has a grey/white front spiracle and the dusting on the parafacial and gena is silver/grey.

Identification difficulty

with good images showing the top of the thorax and a side image showing the front spiracle and face.

ID checklist (your specimen should have all of these features)
  • Front spiracle – yellow / yellow-white
  • Parafacia – shifting grey-brown dusting
  • Prosternum – few hairs
  • Occiput setae – mainly yellow
  • Male with 4-5 av setae on hind tib
Recording advice

Good images are required showing the key ID features.

Habitat

Around cattle pasture. Can be found sunning on walls, fences and vegetation.

When to see it

May to October.

Life History

Breeds in dung. Adults are attracted to Stinkhorn fungi.

UK Status

Uncommon or under-recorded.

VC55 Status

Uncommon or under-recorded in Leicestershire and Rutland.

Further Information

Its similarity to P. lardarius probably explains why it is under-recorded. It was thought to be a recent colonist but examination of museum specimens shows that it was in the UK in 1800.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Additional images

All NatureSpot records