MicroctenonyxMicroctenonyx is a genus of dwarf spiders that was first described by Friedrich Dahl in 1886.Speciesit contains four species:Microctenonyx apuliae – ItalyMicroctenonyx cavifrons – KarakorumMicroctenonyx evansae – NigeriaMicroctenonyx subitaneus – Europe, Macaronesia, North Africa to Kyrgyzstan. Introduced to USA, South Africa, Australia, New Zealand