Masoncus
# Masoncus

Masoncus is a genus of North American dwarf spiders that was first described by Ralph Vary Chamberlin in 1949.

## Species

As of May 2019 it contains four species, found in Canada and the United States:

* Masoncus arienus Chamberlin, 1949 (type) – USA,
* Masoncus conspectus (Gertsch & Davis, 1936) – USA
* Masoncus dux Chamberlin, 1949 – Canada
* Masoncus pogonophilus Cushing, 1995 – USA. Known myrmecophilic association with Pogonomyrmex badius, this spider lives in the nest and feeds on springtails.
