Eresus cinnaberinus

Eresus cinnaberinus and Eresus niger are names formerly used for a group of spiders in the genus Eresus now divided into three species, E. kollari, E. sandaliatus and E. moravicus. The three species differ in size, colour pattern, shape of prosoma and copulatory organs, and habitat, with no morphologically intermediate forms. As eastern and western E. kollari are genetically different, with the eastern form likely a hybrid between "pure" E. kollari and E. moravicus, it is possible that later revisions will partition it into additional species.[1]

Both Eresus cinnaberinus and Eresus niger are now regarded as nomina dubia.[1][2]

Distributions
  • E. kollari has the widest distribution of the three species, occurring from Spain and Portugal to Novosibirsk in Russia.
  • E. moravicus occurs in the Pannonian region, the Balkan Peninsula and parts of the Austrian Alps.
  • E. sandaliatus occurs in northern Europe (Denmark, southern Sweden, southern England, Schleswig-Holstein in Germany) and western central Europe (the Czech Republic, the Danube region in Bavaria, the Austrian Alps, northern France).
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References
  1. Řezáč, M.; Pekár, S.; Johannesen, J. (2008). "Taxonomic review and phylogenetic analysis of central European Eresus species (Araneae: Eresidae)". Zoologica Scripta. 37 (3): 263–287. doi:10.1111/j.1463-6409.2008.00328.x.
  2. "Gen. Eresus Walckenaer, 1805", World Spider Catalog, Natural History Museum Bern, retrieved 2015-10-05
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