Ichneumon extensorius
Length: 8-16 mm. A sexually dimorphic species. The female has a white tip to the abdomen, a white mark at the base of the thorax, and white banded antennae. The male is markedly different with yellow and black legs and abdomen, a bright yellow scutellum and no bands on the antennae. Males can only be identified to species by microscopic examination.
Hedgerows and well wooded areas.
March to November
Under recorded - hardly any British records exist for this species.
Little recorded in Leicestershire and Rutland.
Leicestershire & Rutland Map
Enter a town or village to see local records
MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Species profile
- Species group:
- Bees, Wasps, Ants
- Kingdom:
- Animalia
- Order:
- Hymenoptera
- Family:
- Ichneumonidae
- Records on NatureSpot:
- 5
- First record:
- 16/08/2009 (Gamble, David)
- Last record:
- 30/05/2022 (Thompson, Nicky)
Total records by month
% of records within its species group
10km squares with records
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.
In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.