Coremacera marginata

Description

The adults are 7 to10 millimetres long. The prominent eyes and the legs are reddish brown. The brown or yellowish antennae are forward-pointing, with a hairy 3rd segment and a whitish arista. The dark grey wings are mottled by many greyish spots and with a blackish border.

Identification difficulty
ID checklist (your specimen should have all of these features)
  • Lacks any bristles on the propleuron above the front coxa
  • Anal vein reaches the wing margin
  • Reticulate pattern on the wings
  • Dark border on the leading edge of the wings
Habitat

Often found in damp areas. It may also be encountered in grasslands and woodlands, feeding on nectar or sipping dew.

When to see it

Late May until September or October peaking in August.

Life History

Larvae prey on terrestrial snails.

UK Status

Widespread and fairly frequent in the southern half of Britain, but possibly mainly coastal in Wales and scarce north of Cumbria.

VC55 Status

Fairly frequent in Leicestershire and Rutland.

Leicestershire & Rutland Map

MAP KEY:

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

UK Map

Species profile

Species group:
Flies
Kingdom:
Animalia
Order:
Diptera
Family:
Sciomyzidae
Records on NatureSpot:
29
First record:
15/07/2013 (Cooper, Barbara)
Last record:
05/09/2023 (Timms, Sue)

Total records by month

% of records within its species group

10km squares with records

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