Summary for Lathys stigmatisata (Araneae)

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National Distribution

 
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L. stigmatisata Copyright: Evan Jones
Identification difficulty rating: 4
Name: Lathys stigmatisata
Authority: (Menge, 1869)
Order: Arachnida: Araneae
Family: Dictynidae
National Rarity status: NR
IUCN status: VU, criteria: B2ab(ii)

Records: 68
First Record: 1900
Latest Record: 2015

1992-on hectads: 7
Pre-1992 hectads: 9
Total hectads: 12

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About this species

Recorded altitude range
1m to 5m

Species text

Distribution
The species was recorded early in the 20th century from the Lizard and Kynance, West Cornwall, and Lundy Island, off the North Devon coast. In the 1960s it was found at Chapel Porth, East Cornwall, and Dungeness, East Kent (it was also recorded at the latter site in 1982 and found to be quite numerous there in the late 1980s during an NCC survey). In the mid-1980s and 1989 the spider was found at Rye Harbour, East Sussex; and in the late 1980s at the Crumbles, East Sussex. The most recent record is from Ramsey Island, off the Pembrokeshire coast in 1999 (Dawson 2000). Lathys stigmatisata is a Palaearctic species also known from France, Belgium, Germany, Austria, Switzerland, the former Czechoslovakia, Poland, Russia, Hungary, Yugoslavia and the Balkans.

Habitat and ecology
Found under stones, among heather and grass, and among sparse vegetation on shingle. Both sexes are adult in April and females have also been found in June.

Status
The species is apparently rare, but as it matures early in the season it may have escaped detection in some localities. At most known sites several specimens have been found.

Threats
Chapel Porth, Kynance Cove and Lundy are National Trust properties, the last two also being SSSIs. The Cornwall Trust has a reserve at Kynance Cliffs. The Lizard is an SSSI and in part an NNR. The Rye Harbour records are from within the LNR, Ramsey Island is now an RSPB reserve, and Dungeness is an SSSI and in part an RSPB reserve. Threats include the loss of coastal heathlands in Cornwall and public pressure on the remaining ones. Accidental fire is a risk at Kynance. Dungeness is being degraded by a number of activities including gravel extraction, vehicle damage and trampling. The last two cause disturbance to the fragile vegetation and the thin covering of soil, resulting in the creation of areas of bare shingle The shingle habitat at the Crumbles has been destroyed by building and marina development.

Management and conservation
The National Trust now controls public access at Kynance Cove and the previously serious damage from trampling of the cliff-top vegetation has eased. The National Trust and English Nature are reintroducing grazing to this site, which should benefit the heathland and grassland communities.

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 20 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 16 records with habitat information)

Broad subhabitat Data (based on 1 records with subhabitat information)

Structural Habitat Data (based on 15 records with structural habitat information)

Habitat Detail and Method (based on 17 records with habitat detail and method information)

Recorded management for locations with Lathys stigmatisata

Recorded substrate and hydrology for locations with Lathys stigmatisata

Images

L. stigmatisata
L. stigmatisata
Lathys stigmatisata
Lathys stigmatisata
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