Zercidium

{{Short description| Monotypic genus of spiders}}

{{Speciesbox

| taxon = Zercidium helenense

| authority = Benoit, 1977

| parent_authority = Benoit, 1977

}}

Zercidium is a monotypic genus of Atlantic comb-footed spiders containing the single species, Zercidium helenense. It was first described by P. L. G. Benoit in 1977,{{citation| last=Benoit| first=P. L. G.| year=1977| contribution=Fam. Theridiidae| title=La faune terrestre de l'île de Sainte-Hélène IV}} and is found on Saint Helena.{{cite journal| title=Gen. Zercidium Benoit, 1977| website=World Spider Catalog Version 20.0| access-date=2020-07-16| year=2020| publisher=Natural History Museum Bern| url=http://www.wsc.nmbe.ch/genus/3561| doi=10.24436/2}}