Andrena barbilabris (Kirby, 1802)

Synonyms

Description and notes

This medium-sized, spring-flying Andrena is strongly associated with loose, dry sandy soils. The females are quite colourful when fresh, but soon become dowdy. The males, which race over the surface of loose sand in the sun, wear out even more quickly and a bright silver-grey insect rapidly becomes a dull browny-black with few obvious hairs. It is closely related to the similar, but smaller and summer-flying, Andrena argentata Smith.

  Pre 1980   1980-99   2000 and later
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Video

These mining bees often nest on sandy paths and their nest burrows are often covered by loose sand. The females buzz their wings as they dive through the sand to find their burrows. Video by John Walters

Distribution

It is found throughout the British Isles, although scarcer towards the north, also recorded from the Channel Islands and scattered localities in Ireland.

It is widely distributed in northern and central Europe.

Status (in Britain only)

This species is not regarded as scarce or threatened.

Habitat

Strongly associated with light, sandy soils, but widespread on these.

Flight period

March to June.

Nesting biology

Nests in the ground, forming small aggregations; usually in patches of loose sand although they also nest between the paving stones in my sandy garden. The females allow the burrow to collapse behind them as they enter and leave, possibly hiding the entrance. The actual nest is made in the firmer sand underneath, so excessive soil disturbance is damaging to the nests.

Flowers visited

There are flower-visiting records for a wide range of spring-flowering shrubs as well as herbaceous species such as dandelion.

Parasites

Unusually for an Andrena, its special cleptoparasitic bee is a Sphecodes – pellucidus Smith. One is often alerted to its probable presence by the Sphecodes flying over loose sand and digging into it as it searches for nest burrows of the Andrena.

Author of profile

M Edwards.

Year profile last updated

2016