Summary for Centromerus incilium (Araneae)

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National Distribution

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Identification difficulty rating: 3

Name: Centromerus incilium

Authority: (L.Koch, 1881)

Order: Arachnida: Araneae

Family: Linyphiidae

National Rarity status: NS

IUCN status: LC

Records: 361

First Record: 1900

Latest Record: 2024

1992-on hectads: 32

Pre-1992 hectads: 21

Total hectads: 45

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About this species

Recorded altitude range
1m to 200m

Species text

Distribution
Apart from old (doubtful?) records from Aberdeenshire, the species is confined to south-central and south-eastern England. It is widespread but uncommon in north-western and central Europe. It has not been recorded from Ireland.

Habitat and ecology
C. incilium occurs mainly on chalk grassland and on sandy grassland in Essex and Breckland, in both long and short grass, occasionally on arable land. It has occurred on roadside verges and in old chalk and sand pits especially on sparsely vegetated ground and lichen heath. Both sexes are adult from autumn to late spring with a peak in winter, females also until June.

Status
Although recorded from 16 hectads since 1992, only twelve of these are where spiders were recorded both before and after this date. It shows a moderate decline, hence the Watching Brief.

Threats
The loss of grassland to agriculture or forestry.

Management and conservation
Maintain grassland by traditional grazing or periodic scraping to return to early succession.

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 169 records with adult season information)

Habitats

background methodology

Broad Habitat Data (based on 64 records with habitat information)

Broad subhabitat Data (based on 8 records with subhabitat information)

Structural Habitat Data (based on 159 records with structural habitat information)

Habitat Detail and Method (based on 155 records with habitat detail and method information)

Structural habitat by month

Recorded management for locations with Centromerus incilium

Recorded substrate and hydrology for locations with Centromerus incilium

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