About Hylaeus annulatus (Linnaeus, 1758)
Hylaeus annulatus (Linnaeus, 1758) is a hymenopteran species belonging to the family Colletidae. It is distributed across North America and Europe. This species depends on specific cavities within standing dead wood for nesting, so the availability of appropriate nest sites is a critical factor for its population. Despite this nesting requirement, Hylaeus annulatus forages from a very wide variety of flowering plants.