Georgia Mason

Female Georgia mason bee, covered with yellow pollen, on a yellow flowerhead
Scientific Name
Osmia georgica
Megachilidae (leafcutter, mason, and resin bees) in the order Hymenoptera (ants, bees, wasps)

The Georgia mason is one of several species of mason bees (Osmia spp.) in Missouri. Like other megachilid bees, it is a native solitary bee that is an important pollinator. The body is black with a bluish or turquoise metallic sheen. Like other members of the megachilid family, females carry pollen on the underside of the abdomen, within a special clump of hairs called a scopa or pollen brush. In this species, the scopa and other hairs are noticeably pale, yellowish, or whitish. The megachilid bees are the only group of bees that have a scopa for carrying pollen. When full of pollen, the underside of the abdomen therefore looks bright yellow or orange. They do not carry pollen in baskets on their legs.

Learn more about the Georgia mason bee and other megachilid bees on their group page.

Other Common Names
Georgia Mason Bee
Length: less than ½ inch.
Where To Find
This species flies from early spring (March) through to the heat of summer (August). Most people see it visiting flowers, especially members of the sunflower/daisy family, in grassy areas.
Native solitary bee, valuable as a pollinator.
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Similar Species
About Land Invertebrates in Missouri
Invertebrates are animals without backbones, including earthworms, slugs, snails, and arthropods. Arthropods—invertebrates with “jointed legs” — are a group of invertebrates that includes crayfish, shrimp, millipedes, centipedes, mites, spiders, and insects. There may be as many as 10 million species of insects alive on earth today, and they probably constitute more than 90 percent all animal species.