Hylaeus communis Nylander, 1852
FW length 4-5.5 mm.
A small, brightly coloured plasterer bee. The male has a very vivid array of yellow facial markings.
It uses existing burrows to form its nest, like dead woody stems, and also in the soil and crevices in mortar joints.
Seen late May to mid-September, it feeds on a range of flowers in lowland habitats. It is often found in gardens, and is likely to make use of bee hotels. Common and widespred throughout most of England, less so elsewhere.