Summary for Micaria micans (Araneae)

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National Distribution

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Micaria micans Copyright: Esmond
Identification difficulty rating: 4
Name: Micaria micans
Authority: (Blackwall, 1858)
Order: Arachnida: Araneae
Family: Gnaphosidae

Records: 201
First Record: 1983
Latest Record: 2023

1992-on hectads: 85
Pre-1992 hectads: 3
Total hectads: 87

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About this species

Recorded altitude range
0m to 85m

Species text

Micaria micans was originally described by Blackwall in 1858 (as Drassus micans) but was later synonymised with M. pulicaria. A recent study based on material from Europe and N. America using both molecular and morphological methods has demonstrated that the two species are indeed distinct (Muster & Michalik, 2020). In Britain this species has currently been recorded widely from southern Britain as far north as North Wales. However, more critical study is needed on material from the northern half of Britain before its full range can be determined. In Europe it is widespread although apparently absent from the Iberian Peninsula and parts of central Europe.

Habitat and ecology
Currently our knowledge of the habitat preference of this species in Britain is limited. In Kent it has been found to be associated with open habitats such as grasslands, coastal shingle, sand dunes and post-industrial sites whereas M. pulicaria was more frequently found in woodlands. In Wales M. micans is also associated with open, thermophilic habitats such as sand dunes, shingle and short calcareous grassland. Here M. pulicaria is not restricted to woodland habitats but is found amongst denser vegetation in moorland, lowland raised bogs, coastal grassland and dense marram grass on dunes. Adults are most active between April and June but with some specimens still found up to September.

Until more is known about the distribution and ecology of this species, it would be premature to assign a status. However, its widespread distribution and varied range of habitats do not suggest any immediate threats.


Adult Season

Adult Season Data (based on 169 records with adult season information)


background methodology

Broad Habitat Data (based on 51 records with habitat information)

Broad subhabitat Data (based on 7 records with subhabitat information)

Structural Habitat Data (based on 108 records with structural habitat information)

Habitat Detail and Method (based on 123 records with habitat detail and method information)

Recorded management for locations with Micaria micans

Recorded substrate and hydrology for locations with Micaria micans


The stunning micaria micans
The stunning micaria micans
Micaria micans
Micaria micans
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