Mecysmaucheniidae

Mecysmaucheniidae is a family of araneomorph spiders first described by Eugène Simon in 1895. Most genera occur in South America (Chile and Argentina), with two genera endemic to New Zealand.

Genera
, the World Spider Catalog accepts the following genera:


 * Aotearoa Forster & Platnick, 1984 – New Zealand
 * Chilarchaea Forster & Platnick, 1984 – Chile, Argentina
 * Mecysmauchenioides Forster & Platnick, 1984 – Chile, Argentina
 * Mecysmauchenius Simon, 1884 – Chile, Argentina
 * Mesarchaea Forster & Platnick, 1984 – Chile
 * Semysmauchenius Forster & Platnick, 1984 – Chile
 * Zearchaea Wilton, 1946 – New Zealand