Ynghylch

A common medium-sized hoverfly, often found in gardens, the Narcissus bulb fly (also known as the 'Large narcissus fly' and 'Greater Bulb Fly') is a bumble bee mimic. Adults feed on nectar and pollen and can be seen around flowers like dandelions from March to August. Males can be spotted flying low over short grass in search of females; while females can be seen on the dying leaves of bulbous plants, such as Daffodils and Bluebells, where they lay their eggs. The larvae hatch and burrow into the bulb underground, feeding on it and even destroying it.