Summary for Centromerus albidus (Araneae)

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National Distribution

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Identification difficulty rating: 4

Name: Centromerus albidus

Authority: Simon, 1929

Order: Arachnida: Araneae

Family: Linyphiidae

National Rarity status: NR

IUCN status: CR (PE), criteria: B2ab(iv)

Records: 20

First Record: 1800

Latest Record: 2021

1992-on hectads: 1

Pre-1992 hectads: 3

Total hectads: 4

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About this species

Recorded altitude range
350m to 700m

Species text

Distribution
The species has been recorded from Box Hill and White Downs, Surrey, and Stockbridge, Hampshire, all since 1962. It has also been reported from Spain, France, Romania and Slovakia.

Habitat and ecology
C. albidus occurs in beech litter in beech woods. Adult males have been found between August and November and females between August and April.

Status
No records since before 1980, though the spider occurred in numbers at its Surrey sites. Area of occupancy very restricted. Recorded from three locations prior to 1992 but no records since.

Threats
The loss of established beech woods. In past years, foresters have clear-felled ancient beech woods on the North Downs and used a nurse crop of conifers in the replanting, a practice which could be detrimental to the ancient woodland fauna and flora, including this spider.

Management and conservation
Small group fellings with no conifer nurse crop should ameliorate the effects of previous management of the beech wood ecosystem. Survey work to establish the current status of this species is required.

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 5 records with adult season information)

Habitats

background methodology

Broad Habitat Data (based on 4 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 4 records with structural habitat information)

Habitat Detail and Method (based on 2 records with habitat detail and method information)

Structural habitat by month

Recorded management for locations with Centromerus albidus

Recorded substrate and hydrology for locations with Centromerus albidus

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