Alfalfa Caterpillar Parasite vs Tiny Dark Sweat Bee

Side-by-side species comparison

Attribute Alfalfa Caterpillar Parasite Tiny Dark Sweat Bee
Scientific Name Cotesia medicaginis Lasioglossum villosulum
Order Hymenoptera Hymenoptera
Family Braconidae Halictidae
Size 2-4 mm 5-6 mm
Habitat Farmland Farmland
Diet Parasitoids Nectar Feeders
Regions North America Europe, Asia, North Africa
Conservation Least Concern Least Concern

Alfalfa Caterpillar Parasite

A small braconid wasp that parasitizes alfalfa butterfly caterpillars in agricultural fields. Larvae spin white cocoons after emerging from the host.

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Did You Know?

It can reduce alfalfa caterpillar populations by over 50% in some fields without any pesticide use.

Tiny Dark Sweat Bee

A tiny, inconspicuous furrow bee widespread across the Palearctic region. Despite its small size, it is an important pollinator of crops including onion seed and carrots.

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Did You Know?

It is one of the most important wild pollinators of commercial onion seed crops in Europe.