# Alfalfa Leafcutter Bee (*megachile rotundata*)

The Alfalfa Leafcutter Bee is a small, fuzzy bee that loves to collect leaves for its nest. It plays an important role in helping flowers grow by pollinating them as it buzzes around!

- **Category:** [Insects](https://www.snappit.app/explore/categories/insect)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 1
- **Habitat:** Alfalfa fields, gardens, and meadows where flowers bloom.
- **Also known as:** Alfalfa Bee, Megachile Bee

![Alfalfa Leafcutter Bee](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Megachile_rotundata_%2832016878731%29.jpg&width=800)

Photo: Dirk Pons, CC BY 2.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Megachile_rotundata_%2832016878731%29.jpg)

## Appearance

The Alfalfa Leafcutter Bee is a small, stout bee with a dark body covered in dense, yellowish-grey hairs, especially on its underside. Females have a distinct golden-bristled belly (scopa) for carrying pollen, differing from the leg-pollen baskets of honeybees. They are generally less fuzzy than bumblebees.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Arthropoda
- **Class:** Insecta
- **Order:** Hymenoptera
- **Family:** Megachilidae
- **Genus:** Megachile

## Interesting facts

- Each female bee builds individual nursery cells, laying one egg in each leafy compartment.
- Their unique nests look like tiny burritos or cigars made from carefully cut leaf pieces!
- These busy bees are so effective at their job, farmers actually buy them to pollinate crops!
- Unlike honeybees, they carry pollen on their hairy tummies, not in baskets on their legs!

## Special abilities

- **Leaf Architects:** Alfalfa Leafcutter Bees can snip perfect circular leaf pieces using powerful jaws that helps them build cozy, tubular nest cells.
- **Belly Pollen Carrier:** Alfalfa Leafcutter Bees have a special hairy abdomen (scopa) that helps them efficiently collect and transport pollen.
- **Super Pollinators:** Alfalfa Leafcutter Bees rapidly and effectively pollinate many flowers, which helps increase crop yields for farmers.

## Measurements & details

- **Wingspan:** 12-20 mm
- **Size:** 6-10 mm
- **Lifespan:** 28-42 days
- **Flight Speed:** 15 km/h
- **Leg Count:** 6

## Diet & Feeding

They love to sip sweet nectar and collect protein-rich pollen from flowers to feed their young!

- **Primary Foods:** Nectar, Pollen, Alfalfa pollen, Clover pollen, Sunflower pollen
- **Foraging Method:** Foraging

## Ecological connections

- **Pollinates:** [Alfalfa](https://www.snappit.app/explore/alfalfa) (*Medicago sativa*) — Essential for alfalfa seed production.
- **Parasitizes:** Cuckoo Bee (*Sapyga pumila*) — Lays eggs in the leafcutter bee's nest cells.
- **Parasitizes:** Chalcid Wasp (*Monodontomerus obsoletus*) — Parasitic wasp that attacks larvae.
- **Eaten by:** [Crab Spider](https://www.snappit.app/explore/crab-spider) (*Misumena vatia*) — Hides on flowers, ambushing visiting bees.

## 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.
- [Diurnal](https://www.snappit.app/explore/traits/diurnal): Diurnal animals are primarily active during daylight hours, typically resting or sleeping at night.
- [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

No special safety notes yet.

## Frequently Asked Questions

### How to identify Alfalfa Leafcutter Bee?

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 Alfalfa Leafcutter Bee's wingspan?

12-20 mm

### How big is Alfalfa Leafcutter Bee?

6-10 mm

### How long does Alfalfa Leafcutter Bee live?

28-42 days

### How fast can Alfalfa Leafcutter Bee fly?

15 km/h

### What does Alfalfa Leafcutter Bee eat?

They love to sip sweet nectar and collect protein-rich pollen from flowers to feed their young!

### Where is Alfalfa Leafcutter Bee usually found?

Alfalfa fields, gardens, and meadows where flowers bloom.

### How does Alfalfa Leafcutter Bee hunt?

Foraging

## Where to spot

- [Denver Botanic Gardens](https://www.snappit.app/guides/places/denver-botanic-gardens) — Colorado, US · Botanical Garden
- [Fort Griswold Battlefield State Park](https://www.snappit.app/guides/places/fort-griswold-battlefield-state-park) — Connecticut, US · State 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: [Alfalfa Leafcutter Bee: Facts & Places to See — Snappit](https://www.snappit.app/explore/alfalfa-leafcutter-bee)
