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

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.

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.

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)


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)

Recorded management for locations with Calositticus caricis

Recorded substrate and hydrology for locations with Calositticus caricis


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