Diario del proyecto Spiders of Cape Town

05 de enero de 2023

Key to the Lycosoids of Cape Town

Lycosoidea is the superfamily comprising wolf spiders and their allies.

Families in Lycosoidea:
Lycosidae (wolf spiders)
Pisauridae (nursery-web and fishing spiders)
Ctenidae (wandering spiders, tropical wolf spiders)
Oxyopidae (lynx spiders)

Lycosidae:
(https://www.inaturalist.org/observations?locale=en&page=2&place_id=52355&taxon_id=47416)

Lycosids can be distinguished from oxyopids by their eyes. Oxyopids have a hexagonal eye arrangement. Lycosids can be distinguished from ctenids by their 4-2-2 eye arrangement. Ctenids have a 2-4-2 eye arrangement. Lycosids can be distinguished from pisaurids if one were to draw lines through the posterior lateral and median eyes. If they cross at the front of the chelicerae, it is a lycosid. Pisaurid eyes cross at the anterior row of eyes.

Pisauridae:
(https://www.inaturalist.org/observations?locale=en&place_id=52355&taxon_id=55788)

Pisaurids can be distinguished from oxyopids by their eyes. Oxyopids have a hexagonal eye arrangement. Pisaurids can be distinguished from ctenids by their 4-2-2 eye arrangement. Ctenids have a 2-4-2 eye arrangement. Pisaurids can be distinguished from lycosids if one were to draw lines through the posterior lateral and median eyes. If they cross at the anterior row of eyes, it is a pisaurid. Lycosid eyes cross at the front of the chelicerae.

Ctenidae:
(https://www.inaturalist.org/observations?locale=en&place_id=52355&taxon_id=53389 or for more: https://www.inaturalist.org/observations?locale=en&place_id=6986&taxon_id=53389)

Ctenids can be distinguished from oxyopids by their eyes. Oxyopids have a hexagonal eye arrangement. Ctenids can be distinguished from both lycosids and pisaurids by their 2-4-2 eye arrangement. Lycosids and pisaurids have a 4-2-2 eye arrangement.

Oxyopidae
(https://www.inaturalist.org/observations?locale=en&place_id=52355&taxon_id=83843)

Oxyopids can be distinguished from all other families in Cape Town by their hexagonal eye arrangement. Six eyes form a wide, not tall, hexagon as a hexagon has six sides. Two small eyes in front of the hexagon are not visible from a true dorsal view. Oxyopids also have a vast abundance of macrosetae (spines) on their legs.

Publicado el enero 5, 2023 03:59 TARDE por huttonia huttonia | 10 comentarios | Deja un comentario

13 de diciembre de 2022

Please help with IDs

The fastest way to learn spiders is to try and ID them. Why not try help us nudge our spider observations to species level where possible?

All these links use the Identification Tool - which is super efficient. Take a two minute tutorial in how its works (or review it if you need a refresher).
https://vimeo.com/246153496
Publicado el diciembre 13, 2022 08:35 TARDE por tonyrebelo tonyrebelo | 3 comentarios | Deja un comentario

01 de abril de 2022

Guides to Spiders

Popular References:

  • Astri & Leroy. Spiderwatch in southern Africa. Struik
  • Filmer. Filmers Spiders - an identification guide for southern Africa. Struik Nature.
  • Dippenaar-Schoeman. Field Guide to Spiders of South Africa. Lapa

Technical

  • Dippenaar-Schoeman & R Jocqué African spiders: an identification manual. PPRI Handbook 9

Spider Projects on iNaturalist in our area:

Publicado el abril 1, 2022 10:00 MAÑANA por tonyrebelo tonyrebelo | 0 comentarios | Deja un comentario

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