Quadrastichus

Description

A large genus with a worldwide distribution. Very difficult to identify to species level. 
One single dorsal seta on the submarginal vein. The very similar genus Aprostocetus usually has at least 2 setae on the submarginal vein. Female funicle 3-segmented and male 4-segmented, notauli complete.

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 of Diptera, Cynipidae, Coleoptera, or eriophyid mites within galls. 

UK Status

Unknown.

VC55 Status

Unknown.

Further Information

Graham M.W.R. de V. (1991) A reclassification of the European Tetrastichinae (Hymenoptera: Eulophidae): revision of the remaining genera. Memoirs of the American Entomological Institute, 49: 1-322.

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:
Eulophidae
Records on NatureSpot:
1
First record:
10/03/2026 (Cann, Alan)
Last record:
10/03/2026 (Cann, Alan)

Total records by month

% of records within its species group

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