Curculio nucum


This weevil ranges from 6 to 8.5 mm. The female's snout is as long as the rest of the body, with a reddish end. The male snout is about 1/3 shorter. The body colour is usually light brown, similar to the colour of mature hazelnuts. Raised ridge of "roof-like scales" forming an obvious raised ridge at the elytral apex, scutellum as long as broad.

Similar Species


Curculio nucum and Curculio glandium are very similar but can be distinguished by the shape of the antennal club. C. glandium (on the left) has a narrower and more tapered club than C. nucum (on the right).

Identification difficulty

On Hazel.

When to see it

The adults can be found from May to the end of August.

Life History

Development takes place mostly within a two-year life cycle. Adult beetles emerge in the spring from the soil where they have been overwintering as adult. They feed on hazel buds and leaves.

UK Status

Fairly frequent in central and southern England, less common elsewhere in Britain.

VC55 Status

Fairly frequent in Leicestershire and Rutland.

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Leicestershire & Rutland Map


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

UK Map