# Grass Eggar (*Lasiocampa trifolii*)

The Grass Eggar is a fluffy caterpillar that turns into a beautiful moth. It loves to munch on grass and can be found in fields and meadows, making it a fun creature to discover!

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

![Grass Eggar](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Lasiocampa_trifolii.jpg&width=800)

Photo: M. Virtala, Copyrighted free use · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Lasiocampa_trifolii.jpg)

## Appearance

The Grass Eggar moth has wings that range from buff to reddish-brown, often marked with a distinct white spot on each forewing. Its hairy body gives it a robust appearance. Males are typically smaller and darker than the larger, paler females.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Insecta
- **Order:** Lepidoptera
- **Family:** Lasiocampidae
- **Genus:** Lasiocampa

## Interesting facts

- Adult Grass Eggar moths actually don't have working mouths, so they can't eat anything!
- Its cocoons are surprisingly tough and covered in hairs from the caterpillar, making them prickly.
- Male Grass Eggar moths are strong flyers and are often seen zipping around in the sunshine!
- The female moth lays her eggs individually on grass stems after mating, not in a big cluster.

## Special abilities

- **Hairy Shield:** Grass Eggar caterpillars are covered in irritating hairs that help protect them from predators.
- **Master of Disguise:** The moth's buff and brown coloration allows it to blend perfectly with dry grasses and leaves, helping it hide.
- **Scent Navigator:** Male moths can detect the faint pheromone scent released by females from long distances to find a mate.
- **Long Nap Survival:** It can spend many months as a pupa, surviving cold winters until conditions are right to emerge.

## Measurements & details

- **Wingspan:** 40-70 mm
- **Lifespan:** 10-14 days
- **Leg Count:** 6

## Diet & Feeding

Young Grass Eggars munch on plants, but the adult moths surprisingly don't eat anything at all!

- **Age differences:** Adult moths do not feed, relying on energy reserves built during their larval stage.
- **Primary Foods:** Various Grasses, Clover, Plantain, Bramble, Heather
- **Foraging Method:** Foraging

## Ecological connections

- **Eats:** [Red Clover](https://www.snappit.app/explore/red-clover) (*Trifolium pratense*) — Caterpillars munch on its leaves for energy.
- **Eaten by:** [Great Tit](https://www.snappit.app/explore/great-tit) (*Parus major*) — Bird that preys on the caterpillars and pupae.
- **Eaten by:** Common Pipistrelle (*Pipistrellus pipistrellus*) — A bat that hunts adult moths at night.
- **Parasitizes:** Ichneumon Wasp (*Ichneumon suspiciosus*) — Lays eggs inside caterpillars, which are then consumed.

## Traits

- [Furry](https://www.snappit.app/explore/traits/furry): Furry describes animals possessing a dense covering of soft hair or fur.
- [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.
- [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

Always look but don't touch caterpillars, as some can be sensitive.

## Frequently Asked Questions

### How to identify Grass Eggar?

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 Grass Eggar's wingspan?

40-70 mm

### How long does Grass Eggar live?

10-14 days

### What does Grass Eggar eat?

Young Grass Eggars munch on plants, but the adult moths surprisingly don't eat anything at all!

### Where is Grass Eggar usually found?

Grasslands

### How does Grass Eggar hunt?

Foraging

### How many legs does Grass Eggar have?

6

## 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: [Grass Eggar: Facts & Places to See — Snappit](https://www.snappit.app/explore/grass-eggar)