Lasioglossum tricingulum CURTIS, 1833
Known as L. xanthopum in some publications.
Very local but widely distributed in southern Britain, the range extending northwards to Nottinghamshire (Carr, 1935) and South Lincolnshire. In Wales, known only from Glamorgan. Also reported from Guernsey and the Channel Islands. There are no records from Ireland. Widespread in the Palaearctic, from southern Sweden south to Morocco, and eastwards to Israel, Pakistan and Mongolia (Ebmer, 1988).