Arge ustulata

Description

Length 7 to 10 mm. All black with a broad body. The wings have an obvious dark 'window' and orange along the veins and leading wing edge.

Similar Species

Arge berberis is the only other dark bodied sawfly recorded in VC55 so far. This has dark legs and no wing cloud.

Identification difficulty
ID checklist (your specimen should have all of these features)
  • dark bodied
  • pale legs
  • smoky wings with a wing cloud
Habitat

Hedgerows, woodland rides, etc.

When to see it

May to July

Life History

The larvae live on various trees and shrubs, whilst the adults will take nectar and pollen from flowers such as Hogweed.

UK Status

Widely distributed in Britain, though seemingly not particularly common.

VC55 Status

Occasional in Leicestershire and Rutland.

Leicestershire & Rutland Map

© OpenStreetMap contributors

MAP KEY:

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

UK Map

Species profile

Species group:
Sawflies
Kingdom:
Animalia
Order:
Hymenoptera
Family:
Argidae
Records on NatureSpot:
13
First record:
05/05/2007 (Gould, David)
Last record:
30/05/2024 (McLoughlin, Margaret)

Total records by month

0246810JanFebMarAprMayJunJulAugSepOctNovDecRecords per month

% of records within its species group

0123452016201720182019202020212022202320242025% of group records

10km squares with records

012345201620172018201920202021202220232024202510km sq. per year

The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.

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Latest records

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Common nameScientific nameDate recordedRecorded bySite name