Summary for Thanatus striatus (Araneae)

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National Distribution

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Thanatus striatus female Copyright: Peter Harvey
Identification difficulty rating: 3
Name: Thanatus striatus
Authority: C.L.Koch, 1845
Order: Arachnida: Araneae
Family: Philodromidae
National Rarity status: NS
IUCN status: LC
Watching Brief: Amber

Records: 1001
First Record: 1898
Latest Record: 2023

1992-on hectads: 125
Pre-1992 hectads: 97
Total hectads: 170

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About this species

Recorded altitude range
0m to 700m

Species text

The species is widespread on southern heathlands and in south-eastern England but with few scattered records elsewhere in England as far north as Northumberland and in Wales. It is widespread in north-western and central Europe.

Habitat and ecology
T. striatus occurs on the ground at the base of vegetation in sandy grassland, heathland and dunes but also in tussocky grassland on sea walls, in brackish grassland, saltmarsh, dyke edges, waste ground and old sand pits. Adults of both sexes are mainly found in May and June, females into July and occasionally August and September.

The spider is local and generally uncommon, but it has occurred with some frequency in Essex, Kent, Hants and Dorset. It has shown a small decline in records post-1992.

Conversion of heathland to other land-use. Possibly public pressure on some dune systems.

Management and conservation
Protect heathland from conversion to other land-use. Protect sand dunes form excessive public pressure (e.g. use by off road vehicles).

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 281 records with adult season information)


background methodology

Broad Habitat Data (based on 260 records with habitat information)

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

Structural Habitat Data (based on 233 records with structural habitat information)

Habitat Detail and Method (based on 302 records with habitat detail and method information)

Recorded management for locations with Thanatus striatus

Recorded substrate and hydrology for locations with Thanatus striatus


Thanatus striatus female
Thanatus striatus female
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