Thursday 17 September 2015

Four new species of huntsman spiders have been discovered in southern Africa


Date: September 16, 2015

Source: Senckenberg Research Institute and Natural History Museum

Summary: To discover a living huntsman spider in the South African deserts is a difficult feat; to study the spider in detail is almost impossible. The eight-legged animals are quick, nocturnal, and dwell in inconspicuous tunnels in the sand. However, four new species of huntsman spiders have been discovered in southern Africa, scientists report.

The arachnologist Dr Peter Jäger of the Senckenberg Research Institute in Frankfurt has discovered a new genus from the family of huntsman spiders. He was able to describe a total of four new species within this genus, which occurs in South Africa and Namibia. Besides special setae at the tips of their feet, which likely prevent the animals from sinking into the sand, the eight-legged creatures are characterized by their interesting mating behaviour. The study was recently published in the scientific journal African Invertebrates.

To discover a living huntsman spider in the South African deserts is a difficult feat; to study the spider in detail is almost impossible. The eight-legged animals are quick, nocturnal, and dwell in inconspicuous tunnels in the sand. "Fortunately, we have our collection that we can fall back on," says Dr Peter Jäger, arachnologist at the Senckenberg Research Institute in Frankfurt. In his lab, Jäger was now able to identify a new genus with four associated new species of huntsman spiders (Sparassidae). "The spiders of one species were collected in the year 2004 by my doctoral student at the time, Dirk Kunz, and I now described them together scientifically as May bruno." The name was assigned in the context of the bio-sponsorship program (www.biopat.de); a daughter uses it to honour her father. Molecular-genetic studies of Jäger's colleague Henrik Krehenwinkel confirmed that the animals belong to a new genus.

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