Narcissus Bulb Fly vs Common Blue Butterfly

Side-by-side species comparison

Attribute Narcissus Bulb Fly Common Blue Butterfly
Scientific Name Merodon equestris Polyommatus icarus
Order Diptera Lepidoptera
Family Syrphidae Lycaenidae
Size 10-15 mm 28-36 mm wingspan
Habitat Underground Grasslands
Diet Nectar Feeders Nectar Feeders
Regions Europe, North America (introduced), Oceania (introduced) Europe, North Africa, Asia
Conservation Least Concern Least Concern

Narcissus Bulb Fly

A bumble bee-mimicking hoverfly that comes in multiple color forms matching different bumblebee species. Its larvae bore into and destroy daffodil and narcissus bulbs.

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Did You Know?

It exists in multiple color forms, each mimicking a different bumblebee species found in the same habitat.

Common Blue Butterfly

A small butterfly where males are vivid violet-blue and females are brown with orange spots. It is the most widespread blue butterfly in Europe.

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Did You Know?

Its caterpillars secrete a sweet honeydew that attracts ants, which in turn protect them from predators.