Psilus

Description

A genus of small (2-4mm) dark wasps. A very distinct group with particularly long mandibles that form a beak directed downwards and backwards and the lamelliform outgrowths of the frons. The species are far from easy to separate and probably need taxonomic revision.

Identification difficulty
Recording advice

Unless identified by a recognized expert, explain how the specimen was identified and include photos of key features.

When to see it

All year. 

Life History

Parasitoids, hosts unknown. Males sometimes attracted to light traps.

UK Status

Unknown.

VC55 Status

Unknown.

Further Information

G.E.J. Nixon (1957) Diapriidae (Diapriinae). Hymenoptera, Proctotrupoidea. RES Handbooks for the Identification of British Insects Volume 8, Part 3dii. Available at: https://www.royensoc.co.uk/shop/publications/out-of-print-handbooks/vol-8-part-3d-ii-hymenoptera-proctotrupoidea-diapriidae-subfamily-belytinae/

Leicestershire & Rutland Map

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:
Diapriidae
Records on NatureSpot:
1
First record:
20/03/2026 (Calow, Graham)
Last record:
20/03/2026 (Calow, Graham)

Total records by month

% of records within its species group

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