Amaurobius fenestralis

Amaurobius fenestralis is a species of spider in the family Amaurobiidae.[1]

Amaurobius fenestralis
Male
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Amaurobiidae
Genus: Amaurobius
Species:
A. fenestralis
Binomial name
Amaurobius fenestralis
(Ström, 1768)[1]

It is one of at least two common spiders found in houses known as lace-webbed spider, the other being Amaurobius similis. The specific name similis is based on its similarity to A.  fenestralis. Both are often found near windows, hence the specific name of A. fenestralis. The two species are difficult to distinguish: A. fenestralis tends to be smaller and lighter in colouration when an adult. Both species have V-shaped markings on their abdomens, with A. fenestralis usually having two or three, and A. similis four. Examination of the genitalia may be needed for precise identification.

References

  1. "Taxon details Amaurobius fenestralis (Ström, 1768)", World Spider Catalog, Natural History Museum Bern, retrieved 2016-10-24


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