# Broad-bordered Yellow Underwing (*Noctua fimbriata*)

The Broad-bordered Yellow Underwing is a beautiful moth with yellow and brown wings. It loves to fly around gardens and fields, especially at night when it's cooler.

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

![Broad-bordered Yellow Underwing](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Noctua_fimbriata_%28caterpillar%29_focus_stacking-20241118-RM-211015.jpg&width=800)

Photo: Reinhold Möller Ermell, CC BY-SA 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Noctua_fimbriata_%28caterpillar%29_focus_stacking-20241118-RM-211015.jpg)

## Appearance

The Broad-bordered Yellow Underwing has forewings that vary from brown, grey, or reddish-brown with intricate patterns, making it blend in with bark or leaves. Its striking feature is the hindwings, which are bright yellow with a wide, distinct black border, making it visually different from many other moths.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Insecta
- **Order:** Lepidoptera
- **Family:** Noctuidae
- **Genus:** Noctua

## Interesting facts

- It tastes sweet flower nectar using special sensors on its tiny feet!
- It uses a long, straw-like tongue to sip sweet nectar from deep inside flowers!
- Its caterpillars are often called cutworms because they snip young plant stems!
- This moth can "shiver" its wings really fast to warm up for night flights!

## Special abilities

- **Surprise Flash:** Broad-bordered Yellow Underwing has bright yellow hindwings that helps them startle predators with a sudden flash of color.
- **Nature's Camouflage:** Broad-bordered Yellow Underwing has drab, patterned forewings that help them blend perfectly with tree bark and foliage during the day.
- **Night Navigator:** Broad-bordered Yellow Underwing can fly and find food in the dark because of its specialized large eyes and keen senses.
- **Scent Seeker:** Broad-bordered Yellow Underwing has feathery antennae that helps them detect distant flower scents and potential mates.

## Measurements & details

- **Wingspan:** 45-60 mm
- **Size:** 20-25 mm
- **Lifespan:** 14-28 days
- **Leg Count:** 6

## Diet & Feeding

Adults sip flower nectar; caterpillars munch on a variety of leafy plants.

- **Age differences:** Caterpillars eat plant leaves and stems, while adult moths feed solely on liquid nectar.
- **Primary Foods:** Nectar, Dock leaves, Dandelion leaves, Plantain leaves, Grass
- **Foraging Method:** Foraging

## Ecological connections

- **Eaten by:** [Little Brown Bat](https://www.snappit.app/explore/little-brown-bat) (*Myotis lucifugus*) — Moths are a common food source for nocturnal bats.
- **Eaten by:** [European Robin](https://www.snappit.app/explore/european-robin) (*Erithacus rubecula*) — Birds prey on moths during their adult and larval stages.
- **Eats:** [Greater Plantain](https://www.snappit.app/explore/greater-plantain) (*Plantago major*) — Caterpillars feed on the leaves of this common plant.
- **Pollinates:** [Common Dandelion](https://www.snappit.app/explore/common-dandelion) (*Taraxacum officinale*) — Adult moths visit flowers, transferring pollen as they feed.

## Traits

- [Solitary](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care.
- [Aerial](https://www.snappit.app/explore/traits/aerial): Aerial creatures spend a significant portion of their lives airborne, utilizing flight for various activities such as hunting, migration, or nesting.
- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [Grassland](https://www.snappit.app/explore/traits/grassland): Grassland habitats are terrestrial biomes dominated by grasses and herbaceous plants, supporting a variety of grazing animals.
- [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material.
- [Nocturnal](https://www.snappit.app/explore/traits/nocturnal): Nocturnal animals are primarily active during the nighttime hours, typically resting or sleeping during the day.
- [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

Moths are usually safe to watch, but don't touch them as they can be delicate.

## Frequently Asked Questions

### How to identify Broad-bordered Yellow Underwing?

Compare resting wing shape, forewing markings, antennae and body build. Small brown moths can hinge on fine details a phone photo can't always catch. Moth Identifier: upload a photo and compare the visible details.

### What is Broad-bordered Yellow Underwing's wingspan?

45-60 mm

### How big is Broad-bordered Yellow Underwing?

20-25 mm

### How long does Broad-bordered Yellow Underwing live?

14-28 days

### What does Broad-bordered Yellow Underwing eat?

Adults sip flower nectar; caterpillars munch on a variety of leafy plants.

### Where is Broad-bordered Yellow Underwing usually found?

Grasslands

### How does Broad-bordered Yellow Underwing hunt?

Foraging

### How many legs does Broad-bordered Yellow Underwing have?

6

## Where to spot

- [Wildpark Bruderhaus](https://www.snappit.app/guides/places/wildpark-bruderhaus) — Zurich, CH · Zoo

## 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: [Broad-bordered Yellow Underwing Facts — Snappit](https://www.snappit.app/explore/broad-bordered-yellow-underwing)
