# Lined June Beetles (*polyphylla*)

Lined June Beetles are shiny and colorful insects that can be seen buzzing around in gardens during the summer. They love to munch on leaves and flowers, making them a fun sight for kids to discover!

- **Category:** [Insects](https://www.snappit.app/explore/categories/insect)
- **Rarity:** Common
- **Danger:** 0/5 · No known danger
- **Habitat:** Lined June Beetles live in gardens, forests, and grassy areas.
- **Also known as:** Green June Beetle, Lined Beetle

![Lined June Beetles](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Polyphylla_decemlineata_MHNT_femelle.jpg&width=800)

Photo: Didier Descouens, CC BY-SA 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Polyphylla_decemlineata_MHNT_femelle.jpg)

## Appearance

The Lined June Beetle has a robust, oval body, typically reddish-brown to dark brown, marked with distinct cream-colored or white longitudinal stripes on its wing covers (elytra). Its antennae are distinctive, ending in fan-like lamellae, which sets it apart from other June beetles.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Insecta
- **Order:** Coleoptera
- **Family:** Scarabaeidae
- **Genus:** Polyphylla

## Interesting facts

- Despite their clumsy flight, they are excellent at digging and burrowing into soil!
- Some male Lined June Beetles have huge, feathery antennae, almost like tiny fans!
- Their larvae live underground for years, munching on plant roots before transforming!
- They are attracted to lights at night, often bumping into windows or screens!

## Special abilities

- **Sound-Sensing Antennae:** Lined June Beetles has fan-like antennae that helps them detect pheromones and navigate through their environment, even in low light.
- **Underground Transformation:** Lined June Beetles can spend years as a grub underground, transforming into an adult beetle that emerges from the soil after pupating.
- **Night Navigation:** Lined June Beetles can fly expertly in the dark because of their keen senses, helping them find mates and food during the night.

## Measurements & details

- **Wingspan:** 30-70 mm
- **Size:** 20-35 mm
- **Lifespan:** 30-90 days
- **Flight Speed:** 10 km/h
- **Leg Count:** 6

## Diet & Feeding

Adults eat leaves, while their grubs munch on plant roots underground.

- **Age differences:** Larvae (grubs) feed on plant roots underground for several years, while adults primarily consume leaves from various trees and shrubs.
- **Primary Foods:** Quercus leaves, Populus leaves, Salix leaves, Grass roots, Zea mays roots
- **Foraging Method:** Foraging

## Ecological connections

- **Eaten by:** [European Starling](https://www.snappit.app/explore/european-starling) (*Sturnus vulgaris*) — Birds like starlings prey on adult beetles.
- **Eaten by:** Masked Shrew (*Sorex cinereus*) — Shrews dig for grubs and pupae in the soil.
- **Eats:** [White Oak](https://www.snappit.app/explore/white-oak) (*Quercus alba*) — Adult beetles feed on the leaves of oak trees.
- **Eats:** [Corn](https://www.snappit.app/explore/corn) (*Zea mays*) — Beetle larvae damage roots of corn plants.

## 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.
- [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.
- [Decomposer](https://www.snappit.app/explore/traits/decomposer): Describes organisms that break down dead organic material, recycling nutrients back into the ecosystem.
- [Nocturnal](https://www.snappit.app/explore/traits/nocturnal): Nocturnal animals are primarily active during the nighttime hours, typically resting or sleeping during the day.

## Collections

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

## Safety

**Danger:** 0/5 · No known danger

No special safety notes yet.

## Frequently Asked Questions

### How to identify Lined June Beetles?

Look for hard wing covers meeting in a line down the back, then compare the antennae, body shape, legs and markings. Metallic colors shift a lot with lighting. Beetle Identifier: upload a photo and compare the visible details.

### What is Lined June Beetles's wingspan?

30-70 mm

### How big is Lined June Beetles?

20-35 mm

### How long does Lined June Beetles live?

30-90 days

### How fast can Lined June Beetles fly?

10 km/h

### What does Lined June Beetles eat?

Adults eat leaves, while their grubs munch on plant roots underground.

### Where is Lined June Beetles usually found?

Lined June Beetles live in gardens, forests, and grassy areas.

### How does Lined June Beetles hunt?

Foraging

## Where to spot

- [Peace Arch Historical State Park](https://www.snappit.app/guides/places/peace-arch-historical-state-park) — British Columbia, CA · State Park
- [Colman Park](https://www.snappit.app/guides/places/colman-park) — Washington, US · Park

## 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: [Lined June Beetles: Facts & Places to See — Snappit](https://www.snappit.app/explore/lined-june-beetles)
