The female Bibionidae lay up to 3, 000 eggs, individually or in small groups in the soil, where they are buried. The hatched larvae, which are resist to the cold, are usually hairy and are found en masse (especially in the upper layers of humus). They live on rotting plant remains and are important soil regenerators. The pupae of Bibionidae also live in the soil. The larvae can be harmful when they occur en masse especially in times of drought as they also attack the roots of living plants.
|Further chapters of "Bibionidae"|
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|1. ||Bibionidae - Bibio marci|