Poecilobothrus nobilitatus


This is an attractive fly with a lime green thorax. The male has conspicuous white wing tips and is easy to identify, the female lacks these white wing tips. The acrostichal bristles on the thorax are short and in two rows. The first antennal segment has hairs on the dorsal surface.

Identification difficulty

Male , Female

ID guidance

Poecilobothrus nobilitatus should have the following features:

  • metallic green body
  • red/yellow legs
  • 2 rows of acrostichal bristles
  • a dark patch on the notopleural area of the thorax
  • dark hairs on top of the first antennal segment
  • all black antennae
  • arista hair length 1.5x the diameter of the arista base
  • males with white wing tips

It lives in damp places with lush vegetation and is often seen resting on mud or on the water surface.

When to see it

May to August.

Life History

A mating dance precedes copulation.

UK Status

Common and widespread in England and Wales, fewer records from Scotland.

VC55 Status

Common in Leicestershire and Rutland

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map

Species profile

Species group:
Records on NatureSpot:
First record:
23/06/2007 (Nicholls, David)
Last record:
18/07/2023 (Higgott, Mike)

Total records by month

% of records within its species group

10km squares with records

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