Micaria constricta
Emerton, 1894
Micaria constricta is a small ground in the Gnaphosidae, first described by Emerton in 1894. The belongs to the Micaria, a group of spiders commonly known as '-mimics' due to their resemblance to ants in both appearance and movement. M. constricta has a Holarctic distribution, occurring in North America and across northern Eurasia from Northern Europe to Middle Siberia. Records indicate presence in Alberta, Canada, and parts of the United States, as well as Svalbard and Russia.
Pronunciation
How to pronounce Micaria constricta: /mɪˈkɛə.ri.ə kənˈstrɪk.tə/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Micaria constricta can be distinguished from other Micaria by subtle morphological features of the , particularly the male and female structure. The specific epithet 'constricta' likely refers to a constricted feature of the body or genitalic structures. As with other Micaria species, are small-bodied with relatively long legs and often exhibit coloration patterns that contribute to their -. Accurate identification typically requires examination of preserved specimens under magnification.
Distribution
North America (including Alberta, Canada and United States); Europe and Northern Asia (excluding China), specifically from Northern Europe to Middle Siberia; Svalbard; Russia.
Behavior
Members of the Micaria are known for - (myrmecomorphy), moving in a zigzag fashion with rapid, jerky movements that resemble those of ants. This likely provides protection from that avoid ants or are confused by the mimicry.
Similar Taxa
- Micaria speciesOther Micaria share the -mimicking appearance and ; precise identification requires examination of genitalic structures
- Other GnaphosidaeGround in related may share general body form and ground-dwelling habits, but lack the specialized - of Micaria