Zygiella

Zygiella is a genus of orb-weaver spiders first described by F. O. Pickard-Cambridge in 1902.^[2] In 2015, Parazygiella was determined to be a taxonomic synonym of Zygiella, and its species were moved to Zygiella.^[3]

Zygiella
Zygiella atrica
Zygiella x-notata, female
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Araneomorphae
Family:	Araneidae
Genus:	Zygiella F. O. Pickard-Cambridge, 1902[1]
Type species
Z. atrica (C. L. Koch, 1845)
Species
11, see text
Synonyms[1]
Parazygiella Wunderlich, 2004

Identification

Zygiella species are distinguished by the structure of the web, which has a missing sector containing a signaling thread leading to a retreat.^[4] Zygiella x-notata, a species in the Zygiella genus, is well-researched for its missing-sector web construction behaviors.^[5]

• 
  Web of Zygiella x-notata

Species

As of April 2019^[update] it contains eleven species:^[1]

• Zygiella atrica (C. L. Koch, 1845) (type) – Europe. Introduced to USA, Canada
• Zygiella calyptrata (Workman & Workman, 1894) – China, Myanmar, Malaysia
• Zygiella carpenteri Archer, 1951 – USA
• Zygiella dispar (Kulczyński, 1885) – North America, Russia (Far East), Japan
• Zygiella hiramatsui Tanikawa, 2017 – Japan
• Zygiella keyserlingi (Ausserer, 1871) – Southern Europe, Ukraine, Turkey
• Zygiella kirgisica Bakhvalov, 1974 – Kyrgyzstan
• Zygiella minima Schmidt, 1968 – Canary Is., Madeira
• Zygiella montana (C. L. Koch, 1834) – Europe, Turkey, Caucasus, Russia (Europe to Middle Siberia), Uzbekistan
• Zygiella nearctica Gertsch, 1964 – Canada, USA
• Zygiella x-notata (Clerck, 1757) – Europe, Turkey, Caucasus, Iran? Introduced to North America, Chile, Uruguay, Argentina, China, Japan, Réunion