Summary for Trematocephalus cristatus (Araneae)

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National Distribution

 
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Trematocephalus cristatus male Copyright: Peter Harvey
Identification difficulty rating: 3
Name: Trematocephalus cristatus
Authority: (Wider, 1834)
Order: Arachnida: Araneae
Family: Linyphiidae
National Rarity status: NS
IUCN status: LC

Records: 190
First Record: 1959
Latest Record: 2017

1992-on hectads: 53
Pre-1992 hectads: 9
Total hectads: 56

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About this species

Recorded altitude range
7m to 589m

Species text

Distribution
The species was formerly confined to a small area in Surrey, Sussex and West Kent between the North and South Downs, but there are recent isolated records from Devon, Somerset, South Essex, Staffordshire and Worcestershire. It has not been recorded from Ireland and is only listed for Sweden in Scandinavia, but is otherwise widespread in north-western and central Europe.

Habitat and ecology
T. cristatus occurs on the foliage of various trees and bushes, especially oak, birch and gorse, in a variety of situations such as woodland, heathland, gardens, parkland, etc. Adults of both sexes are found in May and June.

Status
The spider is numerous at some sites, but often very local, and is sometimes found on only one or two trees at a site. Recent records from the West country and West Midlands suggest it might be expanding its range outside the South-East.

Threats
As populations of the species appear to be scattered on trees in a variety of situations, there are probably no serious threats to the species as a whole, although local populations may be lost as a result of development, tree-felling, etc.

Management and conservation
Protect woodland and other sites where the species could be found from loss of trees associated with agricultural, forestry and urban development.

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 94 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 38 records with habitat information)

Broad subhabitat Data (based on 5 records with subhabitat information)

Structural Habitat Data (based on 42 records with structural habitat information)

Habitat Detail and Method (based on 42 records with habitat detail and method information)

Recorded management for locations with Trematocephalus cristatus

Recorded substrate and hydrology for locations with Trematocephalus cristatus

Images

Trematocphalus male
Trematocphalus male
Trematocephalus cristatus female
Trematocephalus cristatus female
Trematocephalus cristatus male dorsal view
Trematocephalus cristatus male dorsal view
Trematocephalus cristatus male
Trematocephalus cristatus male
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