Micaria
| Micaria Temporal range:  | |
|---|---|
| Micaria fulgens | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Subphylum: | Chelicerata | 
| Class: | Arachnida | 
| Order: | Araneae | 
| Infraorder: | Araneomorphae | 
| Family: | Gnaphosidae | 
| Genus: | Micaria Westring, 1851 | 
| Type species | |
| M. fulgens (Walckenaer, 1802) | |
| Species | |
| 105, see text | |
| Synonyms | |
| 
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Micaria is a genus of ground spiders that was first described by Niklas Westring in 1851. They are 1.3 to 6.5 millimetres (0.051 to 0.256 in) long.
They are often called "ant spiders" due to their ant-like appearance and ant mimicking behavior.