Summary for Phylloneta impressa (Araneae)

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National Distribution

 
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Identification difficulty rating: 3
Name: Phylloneta impressa
Authority: L.Koch, 1881
Order: Arachnida: Araneae
Family: Theridiidae
IUCN status: LC

Records: 1750
First Record: 1900
Latest Record: 2017

1992-on hectads: 446
Pre-1992 hectads: 148
Total hectads: 521

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About this species

Recorded altitude range
-4m to 673m

Species text

Distribution
Theridion impressum is widespread especially in central southern England, but becomes scattered or absent in parts of the west and north, and is very rare in some parts of the east, including well-recorded counties such as Essex. It has a wide, Holarctic Distribution: (Platnick 1998) and is widespread in western and central Europe.

Habitat and ecology
This species constructs a similar retreat and web to that of T. sisyphium in the same habitats. The two species can sometimes be found together on gorse, heather and thorny bushes. Specimens of T. impressum have also been found on rush florets at the upper reaches of saltmarshes. Adult males have been recorded between May and August, adult females between June and October, and even on one occasion in December. Males peak in June and July, females in July and August, later than T. sisyphium. Mature males have been found mate-guarding immature females in their retreats. Single, spherical blue-green egg-sacs are produced in August and September, slightly later than T. sisyphium, and are kept within the retreat. Emergent spiderlings are fed orally by the female.

Status
The species may be locally frequent.

Original author of profile: R.C. Gallon

Text based on Harvey, P.R., Nellist, D.R. & Telfer, M.G. (eds) 2002. Provisional atlas of British spiders (Arachnida, Araneae), Volumes 1 & 2. Huntingdon: Biological Records Centre.  References

Adult Season

Adult Season Data (based on 887 records with adult season information)


Habitats

background methodology

Broad Habitat Data (based on 796 records with habitat information)

Broad subhabitat Data (based on 91 records with subhabitat information)

Structural Habitat Data (based on 362 records with structural habitat information)

Habitat Detail and Method (based on 460 records with habitat detail and method information)

Recorded management for locations with Phylloneta impressa

Recorded substrate and hydrology for locations with Phylloneta impressa

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