Oncopsis subangulata

Description

Length 4.5 to 5.5 mm. Intraocular band weak and does not reach eyes; discoidal spots weak/absent. 

Oncopsis species are sexually dimorphic and also rather variable; identification can be complex. O. subangulata and O. flavicollis are very similar in size and general appearance. Both feed on birch and are often found together. For this reason detailed examination is necessary for positive identification. Whilst images placed in a red box are likely to be this species, they can only be claimed to be representative of the species.

Similar Species
Identification difficulty

Recording advice

Detailed examination of the specimen is needed to identify this species. A photograph alone is not normally sufficient because key features are not obvious and there are one or more similar species.

Habitat

Favours birch.

When to see it

Adult: May to September.

UK Status

Widely distributed throughout Britain on birch, but more local than O. flavicollis.

VC55 Status

Status in Leicestershire and Rutland not known.

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Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map