Pea-leaf Weevil - Sitona lineatus

    Alt Name
    Pea Leaf Weevil
    Description

    3.4-5.3mm. This is the commonest of the Sitona weevils and has dark longitudinal stripes. Unlike many weevils, it has a very short, almost squared off rostrum or snout. Front coxae almost touch the constriction at the front margin of the prosternum (c.f. S. obsoletus where there is a clear gap).

    Similar Species

    Other Sitona species with flat bristles: lineatus, cylindricollis, humeralis, obsoletus, puncticollis, sulcifrons, suturalis, lateralis.

    Dissection is often necessary to confirm the species.

    Identification difficulty
    ID guidance
    • alternating light and dark longitudinal stripes
    • flat bristles on the front half of the wing cases and slightly raised in the rear half
    • moderately bulging eyes
    • straight sides wing cases
    • pronotum widest in the rear half
    Habitat

    Almost any habitat, in winter retreating into grass tussocks, under loose bark or amongst fallen leaves.

    When to see it

    Throughout the year.

    Life History

    It does indeed feed on both peas and beans in gardens but only in a very minor way and causes very little damage to the crop. As an adult, this small creature feeds on the leaves of many leguminous species including Red and White Clover although for some reason it avoids Lupins. The larvae feed on the roots of the same species under the soil.

    UK Status

    Common and widespread in England and Wales.

    VC55 Status

    Common in Leicestershire and Rutland. There were a total of 206 VC55 records for this species up to March 2015.

    Leicestershire & Rutland Map

    UK Map