A genus of ground-nesting bees that may be solitary or social. In the social species, the female (queen) spends the winter in the nest. She then raises a small brood of females that assist in rearing a further brood of males and new queens.
A genus of ground-nesting bees that may be solitary or social. In the social species, the female (queen) spends the winter in the nest. She then raises a small brood of females that assist in rearing a further brood of males and new queens.
