Summary for Calositticus caricis (Araneae)

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National Distribution

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Sitticus caricis male on heather Copyright: Peter Harvey

Identification difficulty rating: 3

Name: Calositticus caricis

Authority: (Westring, 1861)

Order: Arachnida: Araneae

Family: Salticidae

BAP status: UKBAP

National Rarity status: NR

IUCN status: LC

Records: 246

First Record: 1900

Latest Record: 2022

1992-on hectads: 28

Pre-1992 hectads: 28

Total hectads: 45

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Resource files for Calositticus caricis

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About this species

Recorded altitude range
3m to 170m

Species text

Distribution
The species is widely scattered in England and Wales. It is widespread but local in northern and central Europe.

Habitat and ecology
The spider occurs among Molinia and Sphagnum in lowland bogs, and among low vegetation in marshes and fens. Adults of both sexes are found in October and November, and from March to July, and probably over-winter.

Status
UK Biodiversity Action Plan priority species. The spider is frequent at some sites, but very local and has apparently undergone major decline in the past 30 years. Trend analysis of the continuing decline in area of occupancy over the period 1976 to 2005 indicates a reduction in population size of 32% over a ten year period.

Threats
Drainage of bogs and fens. Acid bog and fen habitats are also under threat from succession and climate change.

Management and conservation
Maintain the water table of bogs and fens.

Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.). References

Adult Season

Adult Season Data (based on 121 records with adult season information)

Habitats

background methodology

Broad Habitat Data (based on 33 records with habitat information)

Broad subhabitat Data (based on 10 records with subhabitat information)

Structural Habitat Data (based on 57 records with structural habitat information)

Habitat Detail and Method (based on 150 records with habitat detail and method information)

Structural habitat by month

Recorded management for locations with Calositticus caricis

Recorded substrate and hydrology for locations with Calositticus caricis

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