The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
This particularly distinctive member of the pompilid fauna is generally scarce, but it has been recorded widely in southern England. The majority of modern records are coastal. There are only two recent records for Cornwall, at Killigerran Head on the Roseland Peninsula and at Carn Barrow near Cadgwith on the Lizard Peninsula. There are numerous old records for the species. A. unicolor preys on the purse-web spider Atypus affinis which it locates and paralyses within the spiders characteristic silken burrow.
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.