Summary for Diplocentria bidentata (Araneae)

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National Distribution

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Diplocentria bidentata female Copyright: Tylan Berry
Identification difficulty rating: 3
Name: Diplocentria bidentata
Authority: (Emerton, 1882)
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NS
IUCN status: LC
Watching Brief: Amber

Records: 354
First Record: 1900
Latest Record: 2022

1992-on hectads: 48
Pre-1992 hectads: 76
Total hectads: 112

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About this species

Recorded altitude range
7m to 1055m

Species text

The species is widely distributed in Wales and the Pennine region of northern England, scattered in Scotland.

Habitat and ecology
Found in a variety of habitats including moss, grasses, woodland litter and under stones. Occasionally recorded on mountains where it has been taken at 975 m. Locket & Millidge (1953) give the adult period as autumn and winter, but adults are also to be found throughout the summer.

Recorded from 24 hectads since 1992, and showing an apparent decline of two-thirds in the number of hectads with spider records both before and after that date. However, there are records for 68 hectads since 1980 and since the two key areas of the Pennines and upland Wales are known to be poorly recorded recently, such a large decline is doubtful. Nevertheless, a Watching Brief should be kept on this species.

The ecological requirements of this species are poorly known and it is not possible to determine any threats at present.

Management and conservation
No recommendations at present.

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 111 records with adult season information)


background methodology

Broad Habitat Data (based on 160 records with habitat information)

Broad subhabitat Data (based on 7 records with subhabitat information)

Structural Habitat Data (based on 104 records with structural habitat information)

Habitat Detail and Method (based on 125 records with habitat detail and method information)

Recorded management for locations with Diplocentria bidentata

Recorded substrate and hydrology for locations with Diplocentria bidentata


Diplocentria bidentata female
Diplocentria bidentata female
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