Summary for Pelecopsis nemoralioides (Araneae)

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National Distribution

 
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Pelecopsis nemoraloides male Copyright: Evan Jones
Identification difficulty rating: 4
Name: Pelecopsis nemoralioides
Authority: (O.P.-Cambridge, 1884)
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NS
IUCN status: LC
Watching Brief: Amber

Records: 385
First Record: 1896
Latest Record: 2017

1992-on hectads: 40
Pre-1992 hectads: 63
Total hectads: 87

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About this species

Recorded altitude range
0m to 160m

Species text

Distribution
Almost entirely a coastal species which it is widely distributed on sand dunes in southern Britain, and also with definite records from Argyll, Fife, Ross and Sutherland in Scotland. Roberts (1985) included P. nemoralioides (as P. mediocris and P. locketi) in P. nemoralis though it has been treated as distinct from P. nemoralis in Merrett et al. (1985), Merrett & Millidge (1992) and Merrett & Murphy (2000). This presented problems in the mapping of records submitted to the recording scheme and a decision was made to map coastal records of P. nemoralis as P. nemoralioides in the provisional atlas (Harvey et al., 2000), but the map is bound to present problems in interpretation, especially in the north where it is uncertain whether the same ecological distinction is valid. The species is widespread in north-western Europe as far north as Denmark.

Habitat and ecology
P. nemoralioides is typically found in sandy habitats, particularly coastal sand dunes, amongst marram and other grasses. It has also occurred in steep south-facing chalk grassland in West Kent and on shingle. Both sexes are adult between September and May, but females have been recorded in all months of the year.

Status
Scarce, but the spider may be frequent where it occurs. There is evidence of a long term and substantial decline, which needs clarification. P. nemoralioides is recognised as a senior synonym of P. mediocris (Kulczynski 1899) and P. locketi Cooke 1967 by Wunderlich (1985). Females of these taxa could not be separated by consideration of epigynes or vulvae and males were distinguishable only by a difference in the shape of the cephalic lobes.

Threats
Damage to sand dunes from recreational pressures, particularly that associated with the use of off-road vehicles, may represent a threat at some sites.

Management and conservation
Limit damage to sand dunes resulting from recreational use.

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 122 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 147 records with habitat information)

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

Structural Habitat Data (based on 129 records with structural habitat information)

Habitat Detail and Method (based on 121 records with habitat detail and method information)

Recorded management for locations with Pelecopsis nemoralioides

Recorded substrate and hydrology for locations with Pelecopsis nemoralioides

Images

Pelecopsis nemoraloides male
Pelecopsis nemoraloides male
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