N A T U R K U N D L I C H E S   I N F O R M A T I O N S S Y S T E M

Agalenatea redii (Scopoli, 1763)

(zoological nomenclature: valid name, available)

General information:

Aranea redii Scopoli, 1763: 394.
Type locality: Slovenia, Carniola
Type: Lost or destroyed in coll. IEUP (Evenhuis 1997).

Synonyms, misspellings, wrong determinations, etc.:
Aranea aldrovandi Scopoli, 1763
Epeira cratera Walckenaer, 1805
Atea sclopetaria C. L. Koch, 1844
Anetes caeletron Menge, 1850
Epeira redii Simon, 1874
Araneus redii Lessert, 1910.

Körbchenspinne

Habit:

Description of adults: Examined: 3 , 3 . Body length: about 5 mm, about 8 mm (Nentwig at all, 2003). There is no significant difference in male and female coloration, only in body size. Both sexes brown and very hairy; head region almost invisible due to long white hairs; abdomen big, round with dorsal pattern; legs brown and ringed; abdominal pattern irregular, but always with several black or dark brown stripes; most striking feature is a cardiac mark.

Distribution:

According to Platnick (2010), the species has a Palaearctic distribution, but in Europe it is not present in Moldova, Iceland, Albania, North and South Russia. The distribution in Slovenia is doubtful (van Helsdingen, 2013).

Biology:

   
: Serbia, Fruška gora, Novo Hopovo, 2009. : BRD, Baden-Württemberg, Mannheim-Vogelstang, 2012.10.19    
Picture from: © Savic Dragisa 2010
Detailed view
Picture from: wikimedia commons: Eichler Andreas (cc-by-sa-3.0)
Detailed view
   

The species builds an orb web with a small platform nearby, on which the spider waits. It can often be found on thorny bushes and prefers steppes or dry fields, perennials and shrubs in warm, sunny places. Adult females can be found from April till October, but males only till June.

Anatomy:

Male palp: Median apophysis slender and hook like.
Female epigyna: Scapus round, short and wide. For details please look at the identification key (Nentwig et al. 2010).

Diagnosis:

The genus Agalenatea has only two species. A. liriope (L. Koch, 1875) has described from Ethiopia and Yemen. So, the species is unique in the Palaearctic region, but sometimes it can be confused nevertheless with other species from the genera Araneus or Gibbaranea, especially if young individuals are observed.

Importance for humans:

The species can bite and his jaws can penetrate the human skin, but the poison is not harmful. Some pharmaceutical companies researche upon this poison.

Worth knowing:

Sources:

Evenhuis N. L. 1997. Litteratura taxonomica dipterorum. (1758–1930). – 2 vols. 871 pp. Leiden Backhuys.
Helsdingen, P. van 2013. Araneae. Fauna Europaea version 2.6.2., http://www.faunaeur.org [online 21 Oct 2013].
Nentwig W., A. Hänggi, C. Kropf & T. Blick 2003. Spinnen Mitteleuropas/Central European Spiders. An internet identification key. http://www.araneae.unibe.ch Version of 8.12.2003 [online 25 Oct 2010].
Platnick N. I. 2010. The world spider catalog, version 11.0. American Museum of Natural History, online at http://research.amnh.org/entomology/spiders/catalog/index.html [online 25 Oct 2010].
Savic´ D. 2010. Nature Photography by Dragiša Savic´ online at http://www.naturefg.com/index.html [online 25 Oct 2010].
Scopoli, J. A. 1763. Entomologica Carniolica exhibens Insecta Carnioliae Indigena et Distributa in Ordines, Genera, Varietates. Methodo Linnaeana. – Vindobona, 421 pp, 43 pls. [Reprinted in Graz 1972].

Publication data:

history:
Grbic Gordana: 2010.12.03
Grbic Gordana: 2010.12.06
Grbic Gordana: 2011.04.03
Grbic Gordana: 2011.04.07
Grbic Gordana: 2011.04.10
Kurz Michael: 2013.10.21
not reviewed

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