Mealworm Beetle - Tenebrio molitor


    Tenebrio molitor is a species of darkling beetle. Length 12 to 18 mm, width 4.5 to 6 mm. Usually dark brown to almost black but light brown specimens are not uncommon. Entire upper surface punctate and somewhat shining.

    Identification difficulty

    Often found around houses where it is attracted to lights.

    When to see it

    May to September.

    Life History

    The larvae are the familiar mealworms that are fed to birds.

    UK Status

    Widespread and previously fairly frequent in England, but possibly declining.

    VC55 Status

    Occasional in Leicestershire and Rutland. There were a total of 22 VC55 records for this species up to March 2015.

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    Leicestershire & Rutland Map

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    MAP KEY:

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

    UK Map