Formerly Hoplitis spinulosa. The taxonomy of O. spinulosa has been the subject of considerable debate. Recent genetic work carried out in Switzerland by Mueller, shows that this taxon should correctly be placed within the genus Osmia rather than left within Hoplitis

A small Megachile with green eyes in life. Tergite 6 of both sexes is clothed largely with adpressed white hairs and the female’s scopal hairs are also white. These characters readily distinguish this species from other Megachile species in Britain. Formerly known in the British literature by the names Megachile argentata and M. dorsalis.

A small, dark Sphecodes but otherwise rather similar in general appearance to the common S. geoffrellus.

A rather small, metallic green bee, with white tomentose hair bands on the gaster. Great care must be taken, particularly with females, when separating this species from the common H. tumulorum. Best identified from the male, which should always be dissected to show the vital character in the genitalia.

A rather small, metallic green bee, with white tomentose hair bands on the gaster. The relationship with H. confusus is close and great care must be taken, particularly with females, when identifying specimens collected in southern Britain. May only be reliably determined from the male, which should always be dissected to show the vital character in the genitalia.

A small, all black, scantily-haired bee with dirty-yellow scopae on the hind legs on the female. The male has distinctive pegs underneath the hind femora. In dull weather males are often found curled up in the flowers of yellow Asteraceae, especially hawkweeds. They may stay shut inside the closed flower overnight.

A medium-sized, all black, scantily-haired bee with dirty-yellow scopae on the hind legs of the female. In dull weather males are often found curled up in the flowers of yellow- flowered Asteraceae, especially hawkweeds.They may stay shut inside the closed flower overnight.