Alfalfa Leafcutter Bee vs Redheaded Pine Sawfly

Side-by-side species comparison

Attribute Alfalfa Leafcutter Bee Redheaded Pine Sawfly
Scientific Name Megachile rotundata Neodiprion lecontei
Order Hymenoptera Hymenoptera
Family Megachilidae Diprionidae
Size 7-9 mm 6-8 mm (adult)
Habitat Farmland Farmland
Diet Herbivores Herbivores
Regions North America, Europe, introduced to other regions North America
Conservation Not Evaluated Not Evaluated

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.

Redheaded Pine Sawfly

The most widely distributed pine sawfly in eastern North America. Larvae can completely defoliate young pines, sometimes killing them.

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Did You Know?

Larvae rear up in unison and regurgitate resinous fluid when disturbed as a group defense.