Coelioxys mandibularis olgae Cockerell, 1924, Coelioxys mandibularis jeholensis Yasumatsu, 1935
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.
Found in disjunct regions of the British Isles, in south-east England and from the south coast of Wales to the Wirral. All locations are coastal dune systems. Not recorded from Ireland or the Channel Islands.
It occurs in much of western Europe, although apparently absent from the Iberian peninsula and the Balkans.