Microstigmatidae

Microstigmatidae is a small family of spiders with about 38 described species in eleven genera. They are small ground-dwelling and free-living spiders that make little use of silk.^[1]

Microstigmatidae Temporal range: Neogene–present PreꞒ Ꞓ O S D C P T J K Pg N
Xamiatus rubrifrons in Australia
X. rubrifrons in burrow
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Mygalomorphae
Clade:	Avicularioidea
Family:	Microstigmatidae Roewer, 1942
Diversity
12 genera

The family was removed from the family Dipluridae in 1981.^[2] The subfamily Pseudonemesiinae from the family Ctenizidae was also transferred into the Microstigmatidae.^[3]

Genera

As of October 2025^[update], this family includes twelve genera:^[4]

• Angka Raven & Schwendinger, 1995 – Thailand
• Envia Ott & Höfer, 2004 – Brazil
• Ixamatus Simon, 1887 – Australia
• Kiama Main & Mascord, 1969 – Australia
• Micromygale Platnick & Forster, 1982 – Panama
• Microstigmata Strand, 1932 – South Africa
• Ministigmata Raven & Platnick, 1981 – Brazil
• Pastaza Dupérré & Tapia, 2025 – Ecuador
• Pseudonemesia Caporiacco, 1955 – Colombia, Ecuador, Venezuela
• Spelocteniza Gertsch, 1982 – Ecuador
• Tonton Passanha, Cizauskas & Brescovit, 2019 – Brazil
• Xamiatus Raven, 1981 – Australia