Lasioglossum Curtis, 1833
With over 1,700 species worldwide, Lasioglossum is the world’s largest bee genus. There are 34 species recorded from the British Isles, and 1 is suspected to have become extinct. Commonly referred to as ‘sweat bees’ owing to some foreign species being attracted to human perspiration which they drink for its salt content. They are also called Base-banded Furrow Bees. Their sizes range from tiny to medium-sized.
Most species form nests underground in light soils, and some are solitary and others eusocial, with a queen and worker caste.
A very challenging genus regarding identification to species level.