The Sweat Bee
Lasioglossum spp, also known as the sweat bee, are found in every part of the world and pollinate the flowers while feeding on pollen and nectar. These bees get their common name as “sweat bees” because they are also attracted to the salt in human sweat. Though they can be irritating but are usually harmless and help in maintaining the eco-balance.
HOW TO IDENTIFY SWEAT BEES
Sweat bees are either dull in color or metallic black. Some of them might also be purple or metallic green or blue colored. They have a sharp tongue and hairy legs. Sweat bees are usually about 4mm to 14mm in length. They have almost all black bodies and have fine bristles all over them. They get attracted to human perspiration, and can easily be identified if you’re working outdoors.
Appearance and Behavior

By Gideon Pisanty (Gidip) גדעון פיזנטי – Own work, CC BY 3.0,
Sweat bees do not have the usual yellow color as other bees but are black in color (dull or metallic). Their length varies from 4mm to 14mm. Male sweat bees have yellow and black stripes on their abdomens. These bugs have fine hair on their bodies which help them in the process of pollinating.
These bees have an intense craving for the salt in human sweat, which is where they get their name from. Thus, when these bees come close to you, their purpose is to amass your sweat drops, and not to sting you. Male sweat bees do not sting. Females can sting if you try to harm them or their nests. Sweat bees are not usually aggressive in nature, and their sting is next to painless. However, allergies might happen because of their sting, just as in the case of other insects.
Sweat bees usually make their nests underground. You would easily be aware of their presence if you’re working outdoors and there is a nest around you. Since they get attracted to human sweat, they are easily recognizable and show clear signs of their presence.
Sweat bees, like other bees, are known to play a significant role in maintaining ecological balance and helping various crops to grow, as well as flowers to reproduce.