# Narcissus Bulb Fly (*Merodon equestris*)

The Narcissus Bulb Fly is a special fly that loves to lay its eggs in daffodil bulbs. It helps flowers grow by making sure they are healthy and strong!

- **Category:** [Insects](https://www.snappit.app/explore/categories/insect)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 53
- **Habitat:** Gardens

![Narcissus Bulb Fly](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Merodon.equestris.fem.jpg&width=800)

Photo: Sandy Rae, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Merodon.equestris.fem.jpg)

## Appearance

The Narcissus Bulb Fly is a fuzzy, stout-bodied insect that strongly resembles a bumblebee, with black and yellow or orange bands across its abdomen. It has a large head with small antennae and clear wings, which helps distinguish it from true bees.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Insecta
- **Order:** Diptera
- **Family:** Syrphidae
- **Genus:** Merodon

## Interesting facts

- A single female Narcissus Bulb Fly can lay over one hundred eggs in her short adult life!
- Their babies are tiny grubs that can spend almost a year secretly eating inside flower bulbs!
- They are amazing flyers, able to hover perfectly still or even fly backwards and sideways!
- They mimic bumblebees to trick hungry birds, even though they can't sting at all!

## Special abilities

- **Bee Mimicry:** Narcissus Bulb Fly has black and yellow patterns that make it look like a bumblebee, which helps them avoid predators.
- **Bulb Burrower:** Narcissus Bulb Fly larvae can tunnel into plant bulbs, allowing them to feed and grow safely underground.
- **Precision Flight:** Narcissus Bulb Fly can hover in place or dart swiftly, allowing them to easily access nectar and evade threats.

## Measurements & details

- **Wingspan:** 18-30 mm
- **Size:** 9-16 mm
- **Lifespan:** 7-14 days
- **Flight Speed:** 15 km/h
- **Leg Count:** 6

## Diet & Feeding

Adults sip nectar from flowers, while their larvae eat the insides of plant bulbs.

- **Age differences:** Larvae consume plant bulbs; adults feed on nectar.
- **Primary Foods:** Nectar, Narcissus bulbs, Tulip bulbs, Hyacinth bulbs
- **Foraging Method:** Foraging

## Ecological connections

- **Parasitizes:** Daffodil (*Narcissus pseudonarcissus*) — Larvae tunnel into and consume bulbs, causing decay.
- **Parasitizes:** Common Garden Tulip (*Tulipa gesneriana*) — Larvae can also feed on tulip bulbs, destroying them.
- **Parasitizes:** Common Hyacinth (*Hyacinthus orientalis*) — Larvae sometimes target hyacinth bulbs.
- **Eaten by:** [Great Tit](https://www.snappit.app/explore/great-tit) (*Parus major*) — Birds are known predators of adult flies.

## Traits

- [Social](https://www.snappit.app/explore/traits/social): Social animals live in organized groups, cooperating for survival benefits such as foraging, defense, and raising offspring.
- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material.
- [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms.
- [Diurnal](https://www.snappit.app/explore/traits/diurnal): Diurnal animals are primarily active during daylight hours, typically resting or sleeping at night.
- [Keystone Species](https://www.snappit.app/explore/traits/keystone-species): Describes a species whose presence and role have a disproportionately large effect on its environment.
- [Urban Friendly](https://www.snappit.app/explore/traits/urban-friendly): This habitat trait indicates species that can coexist with humans in urban and suburban environments, utilizing man-made structures and green spaces.
- [Pollinator](https://www.snappit.app/explore/traits/pollinator): Describes organisms that transfer pollen, enabling the fertilization and reproduction of plants.

## Collections

- [Insects](https://www.snappit.app/explore/collections/insects)

## Safety

**Danger:** 1/5 · Very low

These flies are harmless, so you can watch them without worry!

## Frequently Asked Questions

### How to identify Narcissus Bulb Fly?

Look for six legs, antennae, three body sections and the shape of the wings. Beetles have hardened front wings; flies have just one working pair. Tiny insects may need a close view before their group is clear. Insect Identifier: upload a photo and compare the visible details.

### What is Narcissus Bulb Fly's wingspan?

18-30 mm

### How big is Narcissus Bulb Fly?

9-16 mm

### How long does Narcissus Bulb Fly live?

7-14 days

### How fast can Narcissus Bulb Fly fly?

15 km/h

### What does Narcissus Bulb Fly eat?

Adults sip nectar from flowers, while their larvae eat the insides of plant bulbs.

### Where is Narcissus Bulb Fly usually found?

Gardens

### How does Narcissus Bulb Fly hunt?

Foraging

## Where to spot

- [Ambler Heights Historic District](https://www.snappit.app/guides/places/ambler-heights-historic-district) — Ohio, US · Historic District
- [Berry Botanic Garden](https://www.snappit.app/guides/places/berry-botanic-garden) — Oregon, US · Botanical Garden
- [Chestnut Street District](https://www.snappit.app/guides/places/chestnut-street-district) — Massachusetts, US · Historic District
- [City Park](https://www.snappit.app/guides/places/city-park) — Colorado, US · Park
- [Cleveland Cultural Gardens](https://www.snappit.app/guides/places/cleveland-cultural-gardens) — Ohio, US · Park
- [Coker Arboretum](https://www.snappit.app/guides/places/coker-arboretum) — North Carolina, US · Zoo

[View all places to see Narcissus Bulb Fly](https://www.snappit.app/guides/where-to-see/narcissus-bulb-fly)

## More Insects

- [Common Eastern Bumble Bee](https://www.snappit.app/explore/common-eastern-bumble-bee) (*Bombus impatiens*)
- [Spotted Lanternfly](https://www.snappit.app/explore/spotted-lanternfly) (*Lycorma delicatula*)
- [Brown-belted Bumble Bee](https://www.snappit.app/explore/brown-belted-bumble-bee) (*Bombus griseocollis*)
- [Eastern Carpenter Bee](https://www.snappit.app/explore/eastern-carpenter-bee) (*Xylocopa virginica*)

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Source: [Narcissus Bulb Fly: Facts & Places to See — Snappit](https://www.snappit.app/explore/narcissus-bulb-fly)
