Summary details for Thanatus striatus C.L. Koch, 1845

Species Details

Species name: Thanatus striatus C.L. Koch, 1845
Synonym: Thanatus hirsutus O.P.-Cambridge
Taxonomy: Animalia :: Araneae :: Philodromidae
habitat: tall sward & scrub

Distribution

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.

Status

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.

Threats

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.).

Stats

First recorded: 1898
Last recorded: 2025
Total records: 1,058
Total visits: 1,040

Conservation status

Thanatus striatus

Source	Reporting category	Designation	Date designated	Comments
A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017)	Red data categories - spiders (not based on IUCN criteria)	Spider Amber List	42979
A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017)	Rare and scarce species	Nationally Scarce. Includes Red Listed taxa	42979	Threats: Conversion of heathland to other land-use. Possibly public pressure on some dune systems.
A Review of the scarce and threatened spiders (Araneae) of Great Britain: Species Status No. 22 (Sep 2017)	Red listing based on 2001 IUCN guidelines	Least concern	42979	Threats: Conversion of heathland to other land-use. Possibly public pressure on some dune systems.

Photos and media

Spatial distribution - hectad map

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Thresholds:

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Rejected records are excluded from this map. Unverified records are included.

Temporal distribution - records by year

Records that span more than one year are not included in this chart.