Resources:
Linyphiidae  Blackwall, 1859 / Erigone  Audouin, 1826   30 species

Erigone aletris  Crosby & Bishop, 1928

Description

Tibial apophysis with pointed triangular dorsal process. Epigyne bent upward and viewed from posterior ± triangular. Receptacula seminis not visible through epigyne.

Body length male: 1.7-2.1 mm
Body length female: 2.1-2.2 mm
Additional information

This species of North American origin is not native to Europe (alien species). It had been introduced to Europe at least once and did establish.

Character states from linyphiid key
Distribution
  Presence
  No data
Global distribution (WSC 2020): USA, Canada. Introduced to Britain, Italy
Phenology
JanFebMarAprMayJunJulAugSepOctNovDec
 male  female
Figures
Distribution List
Italy   (Pantini & Isaia, 2019) ||| United Kingdom   (no references) |||
References

Pantini P, Isaia M (2019) Araneae.it: the online catalog of Italian spiders, with addenda on other arachnid orders occurring in Italy (Arachnida: Araneae, Opiliones, Palpigradi, Pseudoscorpionida, Scorpiones, Solifugae). http://araneae.it. Fragmenta Entomologica 51: 127-152 pdf

Roberts M J (1987) The spiders of Great Britain and Ireland. Volume 2: Linyphiidae and checklist. Harley Books Colchester, England, 204 pp. pdf

Wilson R (2015) Philodromus buxi and Anyphaena sabina: two new records for the UK. Newsletter of the British Arachnological Society 132: 17-19 pdf

World Spider Catalog (2020) World Spider Catalog. Version 21.0. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.03.2020) doi: 10.24436/2 pdf