Psylla alni


    Length 5 to 6 mm. A very large psyllid which is predominantly green, including the costal marginal vein. The antennae are very long (more than 2.5 x head length). The wing veins are much darker than the membrane, which has dark spinules over much of the surface. The body can develop red or brown markings in late summer. The nymphs produce white fluffy wax which can cover the animal as protection.


    On Alder.

    When to see it

    Late spring and summer.

    Life History

    Associated with Alder.

    UK Status

    Common and widespread in Britain.

    VC55 Status

    Frequent in Leicestershire and Rutland.

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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