Progradungula

Progradungula
P. otwayensis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Gradungulidae
Genus: Progradungula
Forster & Gray, 1979[1]
Type species
P. carraiensis
Forster & Gray, 1979
Species

Progradungula is a genus of Australian large-clawed spiders that was first described by Raymond Robert Forster and Michael R. Gray in 1979.[2] As of May 2024 it contains only three species: P. barringtonensis, P. carraiensis and P. otwayensis.[1]

The name is derived from Latin pro ("before"), and the genus name Gradungula, referring to the ancient ancestry of the genus. It is the first discovered web-building cribellate spider in a "primitive" araneomorph spider family and helped establish the idea that all araneomorph spiders evolved from cribellate ancestors.[3]

These spiders have an uncommon web-making technique and prey-capturing behaviour. A small (approximately 25 mm × 6 mm (0.98 in × 0.24 in)), tilting, ladder-like platform of cribellate capturing silk is supported by an overhead structure of threads linked to the rock walls and consists of two parallel stabilizing silk lines.

References

  1. ^ a b "Gen. Progradungula Forster & Gray, 1979". World Spider Catalog Version 20.0. Natural History Museum Bern. 2024. doi:10.24436/2. Retrieved 2024-10-09.
  2. ^ Forster, R. R.; Gray, M. R. (1979). "Progradungula, a new cribellate genus of the spider family Gradungulidae (Araneae)". Australian Journal of Zoology. 27 (6): 1051–1071. doi:10.1071/zo9791051.
  3. ^ Milledge, G. (1997). "A new species of Progradungula Forster & Gray (Araneae: Gradungulidae)from Victoria". Memoirs of Museum Victoria. 56 (1): 65–68. doi:10.24199/j.mmv.1997.56.02.