Zygiella x-notata

Zygiella x-notata

''Zygiella x-notata'',sometimes known as the missing sector orb weavers or the silver-sided sector spider, is a spider in the family Araneidae.
Zygiella x-notata False widow spider(?) was walking on my desk as I was feeding the ants. It caught this cricket before I could. Impressive as there was no web for it catch it with. Must have been hungry. I'll let her finish her food before I put her back outside! Fall,Geotagged,United Kingdom,Zygiella x-notata

Appearance

''Z. x-notata'' females are up to 11mm in size, males up to 7mm. The prosoma is yellow-brown, with a leaf-like mark on the opisthosoma. The abdomen has a silvery sheen due to guanine crystals below the skin. In moderate climate, adults appear from July to October, sometimes even into December. In warmer regions, they are active all year.

This spider builds its web mostly into window frames, but can also be found on walls, fences, or under the bark of old trees. It is very common around boats and docks throughout the world.

Naming

* ''Zygiella x-notata'' — Holarctic, Neotropical
⤷  ''Zygiella x-notata chelata'' — Portugal
⤷  ''Zygiella x-notata percechelata'' — Portugal

Distribution

* ''Zygiella x-notata'' — Holarctic, Neotropical
⤷  ''Zygiella x-notata chelata'' — Portugal
⤷  ''Zygiella x-notata percechelata'' — Portugal

Behavior

Catching prey is instinctive in ''Zygiella'' in which it differs from other Araneidae, who have to learn this behavior. When alerted by movements of caught prey, the spider moves along the signalling thread into the web center, to orient itself. The killed and wrapped prey is moved to the hideout.

Reproduction

Females and males can often be seen together in one nest. Males with better web-building ability are more attractive to females. Before mating, the male plucks and drums on a special thread attached to the web of the female. The eggs overwinter in a cocoon, the spiderlings hatch next spring.

Food

Catching prey is instinctive in ''Zygiella'' in which it differs from other Araneidae, who have to learn this behavior. When alerted by movements of caught prey, the spider moves along the signalling thread into the web center, to orient itself. The killed and wrapped prey is moved to the hideout.

References:

Some text fragments are auto parsed from Wikipedia.

Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassArachnida
OrderAraneae
FamilyAraneidae
GenusZygiella
SpeciesZ. x-notata
Photographed in
United Kingdom