Anthophora retusa (Linnaeus,1758)

Synonyms

Anthophora monacha ERICHSON

Description and notes

Distribution

Southern England from Dorset to Kent, north to Oxfordshire, and East Norfolk. Also recorded from the Channel Islands (Jersey (Saunders 1902), Herm (Richards 1979), Guernsey and Sark). There are several records from outside this distribution range, though these are unconfirmed and are likely to be based on misidentifications (these are omitted from the distribution map). This bee has undergone a rapid and largely unexplained decline in Britain. In the last two decades it has been reliably recorded from just six sites in Dorset, Wight, North Hants, East Sussex and North Essex. The species is widely distributed in western Europe.

Status (in Britain only)

Listed as Rare (RDB3) by Else & Spooner (in Shirt, 1987) and as Endangered (RDB1) by Falk (1991).

Identification

In A. plumipes the hind-tibial spurs are black, whereas in A. retusa they are yellow to yellowish-brown in colour.

Photo: Matthieu Aubert

Habitat

The species has a preference for sandy soils, being generally found inland on commons and heathlands, as well as coastal dunes and cliffs. Other sites seem to have been on heavier, wooded soils.

Flight period

Univoltine; early April to mid June (rarely late July). Generally the species emerges a little later than the other Anthophora species which is active in the Spring, A. plumipes.

Pollen collected

Polylectic, foraging from Brassicaceae and Lamiaceae (Westrich 1989), though there is no British record.

Nesting biology

Nest burrows are excavated in the soil. However, there seems to be no published description of their internal arrangement or whether they occur in aggregations. The species probably over-winters as a newly eclosed adult in its sealed cell.

Flowers visited

Common bird's-foot-trefoil (Lotus corniculatus), common vetch (Vicia sp.), dandelion (Taraxacum sp.), ground-ivy (Glechoma hederacea), kidney vetch (Anthyllis vulneraria), thrift (Armeria maritima), wallflower (Cheiranthus sp.) and wild radish (Raphanus raphanistrum).

Parasites

The cleptoparasitic bee Melecta luctuosa attacks the nests of A. retusa (e.g. Saunders 1896; Morice 1901; Giordani Soika 1936; Lieftinck 1980).

Author of profile

G R Else.

Year profile last updated

Proofed: January 2012

Citing this page 

Bees, Wasps & Ants Recording Society, 2013. Anthophora retusa. http://www.bwars.com/index.php?q=bee/apidae/anthophora-retusa.[Accessed Date (style 1st January 2013)]