Cyclosa trilobata explained

Cyclosa trilobata is a species of orb-weaver spider that is native to New Zealand and Australia.^[1]

Taxonomy

This species was described as Arachnura trilobata in 1885 by Arthur Urquhart from female and male specimens collected in Auckland.^[2] It was later described from Australia.^[3] It was most recently revised in 1917, in which it was moved to the Cyclosa genus.

Description

The female is recorded at 9.5mm in length whereas the male is 5mm.

Distribution

This species is native to New Zealand and Australia, including Tasmania.

Behaviour

The males and females are known to cohabit.^[4]

Conservation status

Under the New Zealand Threat Classification System, this species is listed as "Not Threatened" with the qualifier of "Secure Overseas".^[5]

Notes and References

1. Dalmas . R. de . 1917 . Araignées de Nouvelle-Zélande . Annales de la Société Entomologique de France . 86 . 317-430.
2. Urquhart . A.T. . 1885 . On the spiders of New Zealand . Transactions and Proceedings of the New Zealand Institute . 17 . 31-53.
3. Book: Koch, Ludwig . Die Arachniden Australiens nach der Natur beschrieben und abgebildet . Keyserling . Eduard von . Keyserling . Eugen . Koch . Carl. . 1871 . Verlag von Bauer & Raspe . Nürnberg . 10.5962/bhl.title.121660.
4. Jackson . Robert R. . 1986 . Cohabitation of males and juvenile females: a prevalent mating tactic of spiders . Journal of Natural History . en . 20 . 5 . 1193–1210 . 10.1080/00222938600770791 . 0022-2933.
5. Sirvid . P. J. . Vink . C. J. . Fitzgerald . B. M. . Wakelin . M. D. . Rolfe . J. . Michel . P. . 2020-01-01 . Conservation status of New Zealand Araneae (spiders), 2020 . New Zealand Threat Classification Series . English . 34 . 1–37.