The females of Lasioglossum lativentre are one of the few Lasioglossum species which can be identified in the field. This is due to the conspicuous white patches on the margins of the abdomen. Some other species may possess pale hairs on the abdomen, but they will never be as dense and conspicuous. Males are somewhat tricker and will generally require microscopic examination. It is listed as Critically Endangered due to an absence of recent records.

Distribution in Ireland: A southern species, found south of the line drawn from Galway to Dublin. It is more frequent in the southeast.

Flight period: Females may be active from April until September. Males fly between June and August.

Habitat: The precise habitats in Ireland are poorly known, but it appears to have some association with woodland edges.

Flowers visited: Various, but composites are particularly favoured by both sexes, including dandelions, Ragwort, Common Daisy and various others.

Personal records: I have recorded this species once, near Borris in Co. Carlow. Here I found two females foraging on dandelions growing along the edge of a deciduous woodland. It is likely that this species is underrecorded.