Cossonus linearis


The weevil is 4 to 6 mm in length with a very flat and elongate body, dark brown punctate elytra and blackish pronotum. Its legs are dark red and the antennae are short and bent.  Its pronotum is quite rectangular viewed from above and slightly narrower than the elytra.

Identification difficulty

Found in woodland and sometimes near rivers.

When to see it

April to September.

Life History

Its larvae rather live in the bark of willow or poplar , but also in the other trees. Adults feed on decaying wood.

UK Status

Classed as Nationally Notable A.

VC55 Status

Although the Bagworth Heath Woods record of 7th June 2013 is only the second record for Leicestershire and Rutland, there were about 50 individuals found at that time. It would seem therefore that the weevil is present in numbers in our area and can be frequent when conditions are right for it. There were only 2 VC55 records for this species up to March 2015.

be our species champion

Leicestershire & Rutland Map


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

UK Map