Meta bourneti
| Meta bourneti | |
|---|---|
 | |
| Female Mera bourneti on its egg sac | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Tetragnathidae |
| Genus: | Meta |
| Species: | M. bourneti |
| Binomial name | |
| Meta bourneti | |
| Synonyms[1] | |
| |
Meta bourneti is an orb weaving cave spider closely related to Meta menardi.[2]
Morphology
[edit]Big sized spider (body length male: 10–13 mm; female: 13–16 mm), very similar in the external morphology to the congeneric Meta menardi. The prosoma is red-brown, with darker margin. Legs are red-brown. The opisthosoma is yellowish, laterally often completely black.[3]
Ecology
[edit]Usually found in caves, in the twilight-zone. The species show a preference for cave walls and roofs, where it spin its orb-web. M. bourneti is able to consume a wide variety of prey items, including dipterans, moths, centipedes, woodlouse, and other cave-dwelling spiders.[4]
Phenology
[edit]Female and juveniles are observed all year round. Males are rare, and usually found from August to December.
The eggsac (cocoon) is white, drop-shaped, and very similar to that of M. menardi (see [5]). It is usually laid in the proximity of the cave entrance between October and November. The spiderlings hatch from the cocoon between January and February.[4]
Distribution
[edit]It is found from Europe to Georgia and North Africa.[1]
References
[edit]- 1 2 3 "Taxon details Meta bourneti Simon, 1922", World Spider Catalog, Natural History Museum Bern, retrieved 2021-01-08
- ↑ "Rare spider species found in Highgate Cemetery vaults". BBC News. 20 January 2013. Retrieved 21 January 2013.
- ↑ "Meta bourneti – araneae". www.araneae.unibe.ch. Retrieved 2016-05-25.
- 1 2 Mammola, Stefano; Isaia, Marco (2014-01-01). "Niche differentiation in Meta Bourneti and M. menardi (Araneae, Tetragnathidae) with notes on the life history". International Journal of Speleology. 43 (3): 343–353. doi:10.5038/1827-806x.43.3.11. hdl:2318/148030. ISSN 0392-6672.
- ↑ Chiavazzo, Eliodoro; Isaia, Marco; Mammola, Stefano; Lepore, Emiliano; Ventola, Luigi; Asinari, Pietro; Pugno, Nicola Maria (2015-01-05). "Cave spiders choose optimal environmental factors with respect to the generated entropy when laying their cocoon". Scientific Reports. 5: 7611. doi:10.1038/srep07611. ISSN 2045-2322. PMC 5154591. PMID 25556697.