Summary details for Philodromus emarginatus (Schrank, 1803)

Species Details

Species name: Philodromus emarginatus (Schrank, 1803)
Synonyms: Philodromus emarginata O.P.-Cambridge, Philodromus lineatipes
Taxonomy: Animalia :: Araneae :: Philodromidae
habitat: arboreal

Distribution

The species has widely scattered records as far north as West Ross. It is widespread in western and central Europe.

Habitat and ecology

The spider occurs on pine trees, occasionally on heather (probably near pines), mainly in heathland areas. One female has been found guarding an egg-sac under a stone on river shingle in Caledonian pine forest (I. Dawson). It is adult from May to July.

Status

The spider is known from only six locations since 1992. It is very local and appears to have undergone major long-term decline. Area of occupancy has apparently declined by 70% since that time.

Threats

The clearance of semi-natural Scots pine for intensive forestry plantations might be detrimental for this species.

Management and conservation

Maintain some old semi-natural pine on heathland Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).

Stats

First recorded: 1890
Last recorded: 2024
Total records: 81
Total visits: 81

Conservation status

Philodromus emarginatus

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)	Rare and scarce species	Nationally Rare. Includes Red Listed taxa	42979
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	Vulnerable	42979	B2ab(ii,iv) is justified because this species is known from only six locations since 1993. Found in association with pines, usually on heathland, it is very local and appears to have undergone major long-term decline; AOO has apparently declined steeply. Threats: The clearance of semi-natural Scots pine for intensive forestry plantations might be detrimental for this species.

Photos and media

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Spatial distribution - hectad map

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Thresholds:

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Temporal distribution - records by year

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