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WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office.

Apidae: Long-Horned Bees (Melissodes and Eucera)

categories: Apidae Bees Pollinators

revision date: 2023-03-24 12:00

Long-horned bee.
Long-horned bee (Melissodes)
Photo by: J. Abel

Biology

Long-horned bees are common with more than 120 species in North America. Males have much longer antennae than females. Robust and hairy, they are moderate-sized bees (0.3-0.8 inches long) with conspicuously hairy rear legs. Faces are often yellow while abdomens are usually dark-colored and may have bands of pale hair. The female carries dry pollen in large, conspicuous scopae on the lower half of her rear legs. Long-horned bees are solitary nesters in the ground where they construct individual nests containing brood cells lined with a wax-like material, each holding one egg and a pollen ball. The nests may be isolated or constructed in groups. Melissodes are important pollinators of sunflowers, daisies and asters.

Chemical Management

IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides.

  • None recommended


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WSU Extension programs and employment are available to all without discrimination.
Evidence of noncompliance may be reported through your local Extension office.