Microstigmatidae
Free-living, not specified if they are web builders or active hunters.
Microstigmatidae is a small family of ground-dwelling spiders, comprising approximately 38 described species across eleven genera. These spiders are notable for making minimal use of silk in their free-living lifestyle. The family was established in 1981, incorporating species previously classified under Dipluridae and Ctenizidae.
Key Facts
- ›A small family of spiders with around 38 described species.
- ›They are ground-dwelling and live freely in their environment.
- ›Microstigmatidae spiders make very little use of silk.
- ›The family was formed in 1981 by separating from Dipluridae.
- ›Species from the subfamily Pseudonemesiinae of Ctenizidae were also added.
- ›As of January 2026, twelve genera and 44 species are recognized.
Minimal Use of Silk, Ground-Dwelling Lifestyle
Ground-Dwelling, Free-Living, Make Little Use of Silk
About Microstigmatidae
The Microstigmatidae are a small taxonomic family of spiders, comprising a modest number of described species. These arachnids are characterized by their terrestrial, free-living nature, and notably, they make very little use of silk in their life cycle. Their classification has seen some revision, with the family being established in 1981 after its separation from the family Dipluridae. Additionally, the subfamily Pseudonemesiinae, previously part of the family Ctenizidae, was transferred into the Microstigmatidae.
Genera and Species
As of January 2026, the Microstigmatidae family is recognized to include twelve genera, encompassing a total of 44 species. Research continues to document and understand the diversity within this family, with scientific contributions focusing on new species discoveries, particularly in regions like the Brazilian Amazon and southern Brazil's Araucaria forests. These studies highlight their presence in litter-dwelling microhabitats.
Characteristics
Microstigmatidae spiders are primarily ground-dwelling, meaning their activities and survival are centered on the earth's surface rather than arboreal or aerial environments. Their minimal reliance on silk distinguishes them from many other spider families that construct elaborate webs for hunting. This free-living strategy suggests they likely hunt prey directly or employ other ambush tactics suited to their terrestrial habitat.
Source: Wikipedia ↗
Frequently Asked Questions
What is the Microstigmatidae family?
Microstigmatidae is a small family of spiders characterized by their ground-dwelling, free-living habits. They are known for their limited use of silk in their daily activities.
How many species are in the Microstigmatidae family?
The family Microstigmatidae currently includes about 38 described species. As of January 2026, this number has been updated to 44 species across twelve genera.
Where do Microstigmatidae spiders live?
These spiders are ground-dwelling, meaning they inhabit the earth's surface. They are free-living and are found in various terrestrial environments.
Do Microstigmatidae spiders build webs?
Microstigmatidae spiders make very little use of silk. Their lifestyle is primarily free-living and ground-based, rather than relying on webs for prey capture.
When was the Microstigmatidae family established?
The family Microstigmatidae was established in 1981. It was formed by separating from the family Dipluridae and also incorporated the subfamily Pseudonemesiinae from the family Ctenizidae.