Summary for Nothophantes horridus (Araneae)

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National Distribution

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Nothophantes horridus female Copyright: Richard Gallon
Identification difficulty rating: 5
Name: Nothophantes horridus
Authority: Merrett & Stevens, 1995
Order: Arachnida: Araneae
Family: Linyphiidae
BAP status: UKBAP
National Rarity status: NR
IUCN status: EN, criteria: B2ab(ii,iii,iv)

Records: 35
First Record: 1989
Latest Record: 2021

1992-on hectads: 2
Pre-1992 hectads: 1
Total hectads: 2

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Resource files for Nothophantes horridus

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About this species

Recorded altitude range
23m to 23m

Species text

This species is endemic to Britain, where it is only known from two abandoned limestone quarries in the Plymouth area.

Habitat and ecology
Under stones and debris on the floor and cliff faces of disused limestone quarries. This species is possibly troglodytic, living in narrow fissures in the limestone, from which it occasionally emerges. Adult females have been recorded in March and April but males have only been found in March (Merrett & Stevens 1995; 1999).

UK Biodiversity Action Plan priority species. Extremely rare, and with a very restricted area of occupancy in one small area near Plymouth, recorded only from two highly threatened adjacent quarries.

The type locality has already been extensively developed and the second site also appears to have been developed, with very small amounts of any habitat surviving.

Management and conservation
As very little is known about the biology or life history of this species, it is not possible to make any management recommendations.

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 12 records with adult season information)


background methodology

Broad Habitat Data (based on 20 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 10 records with structural habitat information)

Habitat Detail and Method (based on 13 records with habitat detail and method information)

Recorded management for locations with Nothophantes horridus

Recorded substrate and hydrology for locations with Nothophantes horridus


Nothophantes horridus female
Nothophantes horridus female
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