Coelioxys simplex NYLANDER 1852; Coelioxys tricuspidata FÖRSTER 1853; Coelioxys denticulata SCHENCK 1855 ; Coelioxys stigmatica SCHENCK 1855; Coelioxys distincta SCHENCK 1855; Coelioxys sponsa SMITH 1855; Coelioxys tridenticulata SCHENCK 1861; Coelioxys gracilis SCHENCK 1861; Coelioxys obscura SCHENCK 1861; Coelioxys claripennis SCHENCK 1870; Coelioxys kudiana COCKERELL 1924; Coelioxys popovici FRIESE 1925
There are currently no published keys to Coelioxys. George Else has a key in preparation. A photographic guide to the genus is available for download from the BWARS website. A distinctive group of largely black bees, with the females of most species having a pointed tip to the gaster. This species flies low over the ground looking for its host’s nests, often in a purposeful manner.
Coelioxys elongata is found throughout mainland Britain from the south coast to Inverness in Scotland. It does appear to have a southerly and also coastal bias with an apparent absence from the entire English Midlands, and inland Scotland and Wales. Also recorded from Ireland and the Channel Islands.
Occurs in much of western and central Europe.