This article relies largely or entirely on a single source. (April 2018)
M. formicaria has a palearctic distribution and has been introduced to the United States. It has been found in the Greater Toronto Area of Canada as of 2015. The population is spreading and has reached at least as far as Stratford, Ontario as of May 2016, and Western NY as of 2016.
- "Taxon details Myrmarachne formicaria (De Geer, 1778)", World Spider Catalog, Natural History Museum Bern, retrieved 2017-04-03