This genus is composed of only a single Australian species. The Gorse Seed Weevil was introduced to Australia in 1939 as a bio-control agent of invasive gorse bushes. the species originated in Europe but the Australian specimens were imported from New Zealand.
Davies, Jamie & Ireson, John & Allen, Geoff. (2008). The phenology and impact of the gorse seed weevil, Exapion ulicis, on gorse, Ulex europaeus, in Tasmania. Biological Control – BIOL CONTROL. 45. 85-92. 10.1016/j.biocontrol.2008.01.009.