Alfalfa Leafcutter Bee vs Trimmer's Mining Bee

Side-by-side species comparison

Attribute Alfalfa Leafcutter Bee Trimmer's Mining Bee
Scientific Name Megachile rotundata Andrena trimmerana
Order Hymenoptera Hymenoptera
Family Megachilidae Andrenidae
Size 7-9 mm 10-12 mm
Habitat Farmland Grasslands
Diet Herbivores Nectar Feeders
Regions North America, Europe, introduced to other regions Europe
Conservation Not Evaluated Least Concern

Alfalfa Leafcutter Bee

A small solitary bee that cuts precise circular pieces from leaves to construct nest cells. It is the most important managed pollinator of alfalfa seed crops in North America.

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Did You Know?

Alfalfa seed yields increased up to 1,000% when this bee was introduced as a managed pollinator.

Trimmer's Mining Bee

A widespread spring mining bee with brownish-grey fur and a distinctive tooth on the hind femur. It forages on a wide range of early-blooming flowers.

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Did You Know?

The small femoral tooth on its hind leg distinguishes it from nearly all other European Andrena species.