Lasioglossum longulum CURTIS, 1833
This is one of the larger Lasioglossum species in Britain, and the distinctive right-angled front corners of the pronotum are easily seen under the microscope.
Southern England and the Channel Islands. Formerly a scarce and very local species but, since about 1990, it has been extending its range in England and is common to locally abundant in many sites in the southern counties. Widely distributed in the western Palaearctic, its range extending from Denmark to the Azores and North Africa (Morocco), eastwards throughout central and southern Europe to Iran.