Crossocerus megacephalus
A small black species.
Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.
May be recorded from a wide range of habitats where its nesting substrate can be found including utilising old beetle borings in dead and decomposing wood.
From mid-May to mid-September, but most records come from June to August, inclusive.
Prey includes small flies and grubs.
Fairly frequent through much of Britain, though less so in Scotland.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Species profile
- Species group:
- insect - hymenopteran
- Kingdom:
- Animalia
- Order:
- Hymenoptera
- Family:
- Crabronidae
- Records on NatureSpot:
- 1
- First record:
- 07/05/2025 (Hunt, Graham)
- Last record:
- 07/05/2025 (Hunt, Graham)
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.



