Summary for Theridion blackwalli

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National Distribution

 
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Cryphoeca silvicola Orkney Copyright: Lee Johnson
Identification difficulty rating: 4
Identification difficulty rating: 4
Name: Sardinidion blackwalli
Authority: (O.P.-Cambridge, 1871)
Order: Arachnida: Araneae
Family: Theridiidae


1992-on hectads: 0
Pre-1992 hectads: 0
Total hectads: 0

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About this species

Recorded altitude range

Species text

Distribution
The species is widespread but locally distributed in England, mainly south of the Midlands. In Fenno-scandia it has only been recorded from Finland, but the spider is otherwise widespread in north-western and central Europe.

Habitat and ecology
This species builds its webs mainly in and around buildings, but also in grass tussocks and on other low plants and tree trunks in a variety of habitats. In Leicestershire the species occurs on walls and gravestones in and around churches and their churchyards, but has not been recorded from vegetation within the county (J. Daws, pers. comm.). Adults of both sexes have been recorded between May and July, but females may persist later. Daws (1999) suggests a short maturity season.

Status
Generally uncommon, although it has been found to be frequent in and around churches in Leicestershire (Daws 1999).

Threats
Too little is known about the ecological requirements of this species to establish what threats it faces.

Management and conservation
More information on the ecology of this species is needed before management recommendations can be made.

Text based on Dawson, I.K., Harvey, P.R., Merrett, P. & Russell-Smith, A.R. (in prep.).  References

Adult Season

no detailed adult season data available


Habitats

background methodology

no broad habitat data available

no subhabitat data available

no structural habitat data available

no habitat detail or method data available

Recorded management for locations with Theridion blackwalli

Recorded substrate and hydrology for locations with Theridion blackwalli

Images

Theridion  backwalli female
Theridion backwalli female
Theridion  backwalli female under eaves of thatched roof
Theridion backwalli female under eaves of thatched roof
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