# leafy oak gall wasp (*Andricus quercusfoliatus*)

The leafy oak gall wasp is a tiny insect that creates special round bumps on oak leaves. These galls are like little homes for the wasp's babies, making them very special in nature!

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

![leafy oak gall wasp](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Andricus_quercusfoliatus.jpg&width=800)

Photo: Austin Pursley, CC0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Andricus_quercusfoliatus.jpg)

## Appearance

The leafy oak gall wasp is a tiny insect, typically dark brown to black, with a compact, somewhat rounded body and clear wings. While the adult wasp is unassuming, its presence is revealed by the striking, leafy galls it induces on oak leaves.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Insecta
- **Order:** Hymenoptera
- **Family:** Cynipidae
- **Genus:** Andricus

## Interesting facts

- Inside each leafy gall, a baby wasp is safely growing up!
- Some wasps make babies all by themselves, without a partner!
- The amazing galls you see on oak leaves are living tree houses!
- These tiny insects trick oak trees into building them nurseries!

## Special abilities

- **Gall Architect:** Leafy oak gall wasp can trick oak trees into growing a protective home because of special chemicals it injects during egg-laying.
- **Clone Creator:** Leafy oak gall wasp has the power to lay eggs that hatch without a male's help, ensuring its survival.
- **Plant Manipulator:** Leafy oak gall wasp can force oak trees to change their growth to create safe nurseries for its young.

## Measurements & details

- **Wingspan:** 5-8 mm
- **Size:** 2-4 mm
- **Lifespan:** 3-7 days
- **Flight Speed:** 2 km/h
- **Leg Count:** 6

## Diet & Feeding

Adults feed little; larvae eat oak tree tissue inside their galls.

- **Age differences:** Larvae consume oak leaf tissue inside galls, adults feed minimally on nectar or do not feed.
- **Primary Foods:** Oak leaf tissue, Plant sap, Nectar

## Ecological connections

- **Parasitizes:** [English Oak](https://www.snappit.app/explore/english-oak) (*Quercus robur*) — Induces protective galls on leaves for larval growth.
- **Eaten by:** Metallic Gall Wasp Parasitoid (*Torymus cyaneus*) — Larvae inside galls are prey for this specialized parasitic wasp.
- **Eaten by:** Oak Gall Inquiline Wasp (*Synergus umbraculus*) — Larvae compete for resources or are preyed upon by this inquiline.

## 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.
- [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material.
- [Forest](https://www.snappit.app/explore/traits/forest): Forest habitats are terrestrial environments dominated by dense tree cover, supporting a high diversity of plant and animal life.
- [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.
- [Miniature](https://www.snappit.app/explore/traits/miniature): Pertaining to species that are significantly smaller than typical or average for their kind.
- [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

Don't touch galls without asking an adult, as they are part of nature's special cycle.

## Frequently Asked Questions

### How to identify leafy oak gall wasp?

Compare the antennae, wings, waist, body hair and legs. Yellow and black stripes show up on bees, wasps and harmless mimics alike. Bee & Wasp Identifier: upload a photo and compare the visible details.

### What is leafy oak gall wasp's wingspan?

5-8 mm

### How big is leafy oak gall wasp?

2-4 mm

### How long does leafy oak gall wasp live?

3-7 days

### How fast can leafy oak gall wasp fly?

2 km/h

### What does leafy oak gall wasp eat?

Adults feed little; larvae eat oak tree tissue inside their galls.

### Where is leafy oak gall wasp usually found?

Forests

### How many legs does leafy oak gall wasp have?

6

## Where to spot

- [Ravenall Park](https://www.snappit.app/guides/places/ravenall-park) — Florida, 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: [Leafy Oak Gall Wasp: Facts & Places to See — Snappit](https://www.snappit.app/explore/leafy-oak-gall-wasp)