Oncopsis alni

Description

Length 5 - 6 mm; females larger than males.  Sexually dimorphic and variable in colouration and intensity of markings. Nymphs cannot be verified.

Predominantly yellowish-brown to reddish-brown.

Similar Species

Other Oncopsis species.

Identification difficulty
Recording advice

Detailed examination of the specimen is needed to identify this species. You must note the host plant.

Habitat

Alder (Alnus glutinosa, A. incana).

When to see it

Miid-May to September.

UK Status

Common. (ref.: UK Auchenorrhyncha checklist 2021, on British Bugs website)

VC55 Status

Rarely recorded

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:
Bugs
Kingdom:
Order:
Family:
Records on NatureSpot:
4
First record:
31/05/2011 (Gould, David)
Last record:
12/05/2025 (Cann, Alan)

Total records by month

% of records within its species group

10km squares with records

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