# Transverse-banded Flower Fly (*Eristalis transversa*)

The Transverse-banded Flower Fly is a friendly insect that looks like a bee but is actually a fly! They love to visit flowers and help plants grow by spreading pollen.

- **Category:** [Insects](https://www.snappit.app/explore/categories/insect)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 13
- **Habitat:** Urban areas

![Transverse-banded Flower Fly](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Transverse_Flower_Fly_%28Eristalis_transversa%29_-_MacGregor_Point_Provincial_Park_01.jpg&width=800)

Photo: Ryan Hodnett, CC BY-SA 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Transverse_Flower_Fly_%28Eristalis_transversa%29_-_MacGregor_Point_Provincial_Park_01.jpg)

## Appearance

The Transverse-banded Flower Fly has a robust, hairy body with distinct yellow and black stripes across its abdomen, closely mimicking a bee or wasp. It features large reddish-brown eyes and clear, iridescent wings. Its pattern is key to distinguishing it visually.

## Taxonomy

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

## Interesting facts

- Adult flower flies mostly sip sweet nectar, but they also eat protein-rich pollen for energy and growth!
- Its larvae, known as “rat-tailed maggots,” live in polluted water with a long, snorkel-like breathing tube!
- These flies are expert flyers, able to change direction instantly and even fly backward with amazing skill!
- Unlike bees which have four wings, flower flies only have two wings, making them true flies!

## Special abilities

- **Mimicry Master:** Transverse-banded Flower Fly can avoid predators by mimicking the appearance of stinging bees and wasps, which helps them stay safe.
- **Hovering Navigator:** Transverse-banded Flower Fly can perform incredible hovering flight, remaining stationary in mid-air, which helps them precisely navigate flowers for nectar.
- **Pollen Delivery System:** Transverse-banded Flower Fly has hairy bodies that collect pollen, helping them transfer it between plants as they feed on nectar, aiding plant reproduction.

## Measurements & details

- **Wingspan:** 15-20 mm
- **Size:** 9-13 mm
- **Lifespan:** 15-45 days
- **Flight Speed:** 8 km/h
- **Leg Count:** 6

## Diet & Feeding

Adults sip nectar and pollen from flowers, while larvae munch on decaying matter underwater.

- **Age differences:** Larvae are aquatic filter-feeders, consuming decaying organic matter and microorganisms, unlike nectar-feeding adults.
- **Primary Foods:** nectar, pollen
- **Foraging Method:** Foraging

## Ecological connections

- **Pollinates:** [Common Dandelion](https://www.snappit.app/explore/common-dandelion) (*Taraxacum officinale*) — visits its bright yellow flowers for nectar and pollen.
- **Pollinates:** [Canada Goldenrod](https://www.snappit.app/explore/canada-goldenrod) (*Solidago canadensis*) — helps transfer pollen between its numerous small flowers.
- **Eaten by:** [Black-capped Chickadee](https://www.snappit.app/explore/black-capped-chickadee) (*Poecile atricapillus*) — a common bird predator in North American habitats.

## Traits

- [Striped](https://www.snappit.app/explore/traits/striped): Marked with parallel bands or lines of color.
- [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.
- [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

Flower flies are harmless and won't sting, so you can watch them safely!

## Frequently Asked Questions

### How to identify Transverse-banded Flower 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 Transverse-banded Flower Fly's wingspan?

15-20 mm

### How big is Transverse-banded Flower Fly?

9-13 mm

### How long does Transverse-banded Flower Fly live?

15-45 days

### How fast can Transverse-banded Flower Fly fly?

8 km/h

### What does Transverse-banded Flower Fly eat?

Adults sip nectar and pollen from flowers, while larvae munch on decaying matter underwater.

### Where is Transverse-banded Flower Fly usually found?

Urban areas

### How does Transverse-banded Flower Fly hunt?

Foraging

## Where to spot

- [Cleveland Cultural Gardens](https://www.snappit.app/guides/places/cleveland-cultural-gardens) — Ohio, US · Park
- [Dubuque Arboretum and Botanical Gardens](https://www.snappit.app/guides/places/dubuque-arboretum-and-botanical-gardens) — Iowa, US · Botanical Garden
- [Fort Tryon Park](https://www.snappit.app/guides/places/fort-tryon-park) — New York, US · Park
- [Kent Gardens Park](https://www.snappit.app/guides/places/kent-gardens-park) — Virginia, US · Park
- [Long Ridge Village Historic District](https://www.snappit.app/guides/places/long-ridge-village-historic-district) — Connecticut, US · Historic District
- [Norman Bird Sanctuary](https://www.snappit.app/guides/places/norman-bird-sanctuary) — Rhode Island, US · Nature Reserve

[View all places to see Transverse-banded Flower Fly](https://www.snappit.app/guides/where-to-see/transverse-banded-flower-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: [Transverse-banded Flower Fly Facts — Snappit](https://www.snappit.app/explore/transverse-banded-flower-fly)
