The Narcissus Fly (Merodon clavipes) is a two-winged fly whose larva attacks the bulbs of daffodils. It was introduced into northern Europe around 1840. It is about 50 mm in length, much like a bumble bee in form, and more or less black in colour, but often spotted with yellow, white or red. It emerges from the pupal stage usually in May, and lays its eggs in June or July. The larvae eat their way into the bulbs, and only leave them by other holes when they are fully grown and ready to bury themselves in the ground, there to undergo the next metamorphosis. Research Narcissus Fly
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Abbreviations
Research Narcissus Fly
