Summary for Calositticus inexpectus (Araneae)

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National Distribution

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Sitticus inexpectus female Copyright: Peter Harvey

Identification difficulty rating: 3

Name: Calositticus inexpectus

Authority: (Logunov & Kronestedt, 1997)

Order: Arachnida: Araneae

Family: Salticidae

National Rarity status: NS

IUCN status: LC

Records: 356

First Record: 1900

Latest Record: 2023

1992-on hectads: 35

Pre-1992 hectads: 17

Total hectads: 37

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About this species

Recorded altitude range
0m to 6m

Species text

Distribution
The species is confined to coastal sites south-east of a line from the Wash to the Severn. There are scattered localities in lowland northern Europe, contrasting with S. rupicola which occurs at higher altitudes (Logunov & Kronestedt 1997).

Habitat and ecology
The species occurs on coastal shingle and amongst tidal litter on shell shingle and sand adjacent to saltmarsh. Adults are found April to October.

Status
S. inexpectus was described as a new species and earlier British records of S. rupicola refer to this species. Although there has been an increase in the number of 10 km squares occupied in the past 30 years, there has been no clear expansion in its overall range.

Threats
Public pressure, shingle and gravel extraction and sea level rise.

Management and conservation
None apart from the reduction of disturbance.

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 160 records with adult season information)

Habitats

background methodology

Broad Habitat Data (based on 111 records with habitat information)

Broad subhabitat Data (based on 3 records with subhabitat information)

Structural Habitat Data (based on 141 records with structural habitat information)

Habitat Detail and Method (based on 131 records with habitat detail and method information)

Structural habitat by month

Recorded management for locations with Calositticus inexpectus

Recorded substrate and hydrology for locations with Calositticus inexpectus

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