Summary for Trichoncus saxicola (Araneae)

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National Distribution

 
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Identification difficulty rating: 4
Name: Trichoncus saxicola
Authority: (O.P.-Cambridge, 1861)
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NR
IUCN status: VU, criteria: B2ab(ii,iv)

Records: 126
First Record: 1900
Latest Record: 2015

1992-on hectads: 8
Pre-1992 hectads: 34
Total hectads: 38

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About this species

Recorded altitude range
0m to 700m

Species text

Distribution
The species is restricted to southern England except for a single female taken in 1976 on Ailsa Craig at the southernmost point of the Clyde Estuary, Scotland (Hogg 1995). It is widespread in northern and central Europe, but in Scandinavia only recorded from Sweden.

Habitat and ecology
T. saxicola occurs mainly on fairly tall calcareous grassland, especially near the coast, in grassy areas on heathland and shingle, and on heathland in Cornwall (Lizard Peninsula) and the New Forest. Females have been found from April to July with a peak of both sexes in June.

Status
The spider is fairly widespread on calcareous grassland in the south, but rather local and never particularly common. There has been a significant decline in occupied 10-km squares.

Threats
The loss of calcareous grassland to agriculture.

Management and conservation
This species appears to favour relatively lightly-grazed grassland, but it would be necessary to control growth of scrub.

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 27 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 40 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 22 records with structural habitat information)

Habitat Detail and Method (based on 23 records with habitat detail and method information)

Recorded management for locations with Trichoncus saxicola

Recorded substrate and hydrology for locations with Trichoncus saxicola

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