Summary for Trachyzelotes pedestris (Araneae)

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National Distribution

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Trachyzelotes pedestris female Copyright: Tylan Berry
Identification difficulty rating: 3
Name: Trachyzelotes pedestris
Authority: (C.L.Koch, 1837)
Order: Arachnida: Araneae
Family: Gnaphosidae
IUCN status: LC

Records: 1058
First Record: 1890
Latest Record: 2023

1992-on hectads: 166
Pre-1992 hectads: 55
Total hectads: 192

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About this species

Recorded altitude range
0m to 700m

Species text

The species is confined to southern Britain south of a line from Norfolk to Herefordshire. It is widespread in western and central Europe as far north as Sweden, but has not been recorded from Ireland.

Habitat and ecology
T. pedestris usually occurs in chalk and limestone grassland, often under stones in fairly open areas. In Essex it occurs on dry south-facing grasslands, landslip areas and at the base of sea walls. It has occasionally been found in open sandy areas on Breckland heaths. P. Merrett notes an occurrence in his kitchen sink! (limestone grassland nearby). Egg-sacs are deposited under stones. Adults of both sexes have been recorded between May and August, mainly in June.

The spider is abundant in some places, especially on dry coastal grassland with many loose stones, but less common though widespread inland.

The loss of calcareous and coastal grassland to agriculture.

Management and conservation
Maintain grassland by grazing. This species is probably less sensitive to changes in grazing pressure than many grassland species, as it occurs in some areas with tall vegetation, and is often in stony areas which tend to remain unvegetated because of lack of soil.

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 623 records with adult season information)


background methodology

Broad Habitat Data (based on 343 records with habitat information)

Broad subhabitat Data (based on 24 records with subhabitat information)

Structural Habitat Data (based on 492 records with structural habitat information)

Habitat Detail and Method (based on 516 records with habitat detail and method information)

Recorded management for locations with Trachyzelotes pedestris

Recorded substrate and hydrology for locations with Trachyzelotes pedestris


Trachyzelotes pedestris female
Trachyzelotes pedestris female
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