Andrena thoracica (Fabricius, 1775)

Synonyms

Andrena melanocephala KIRBY, 1802

Description and notes

A large and distinctive species with bright foxy-red hairs on the thorax and a polished black abdomen.

Distribution

This species is locally common in coastal localities in southern Britain, but is also known from a number of inland sites, often on heathy soils, where it rarely attains the abundance of some of its coastal locations. Males patrol nesting areas, flying extremely quickly along the edge of cliffs, just below the top edge. It is widespread, but rarely common, in Europe. It is also found throughout the steppe regions of Asia.

Status (in Britain only)

This species is not regarded as being scarce or threatened.

Habitat

May be found in open, sandy-grassland habitats, particularly where these are associated with exposed vertical cliffs, which provide the favoured nesting sites.

Flight period

Bivoltine: March to May and July to August

Pollen collected

Widely polylectic.

Nesting biology

Strongly associated with vertical cliffs of sandy material, but may also use more level sandy areas.

Flowers visited

There are no strong preferences in the flowers visited, these include members of the Brassicaceae, Asteraceae, Lamiaceae, Onagraceae and Salicaceae.

Parasites

The cuckoo-bee Nomada goodeniana (Perkins, 1919) and N. fulvicornis (Westrich, 1989) parasitise this species.

Author of profile

M. Edwards.

Year profile last updated

2006