The children's song said "Run you cop / spider furry , and the guys at the south we had to get some explanation that it was.
Then came the film that made her reputation. And some faint spider web of a harmless showed us what could be the local species that were saved from the wind.
But this Thursday 14, the Prensa Austral from Punta Arenas brought a title but not for alarm, it may be to warn.
Changes in the ecosystem, which tell
Call to take precautions face detection "false black widow." Are dangerous spider in the center.
On Saturday, Luis Navarro Ojeda found a piece that was fixing its centennial Columbus Avenue home a copy of spider dangling from its web. But not just any spider, as its shape and size made him think of a copy of deadly black widow spider in the corner.
He immediately took a clamp and placed in a glass and then make a box, with which he brought to our environment in order to know what it was. Immediately, La Prensa Austral Eduardo Faundez contacted, an entomologist at the Institute of Patagonia at the University of Magallanes, who termed it as a false black widow (Steatoda grossa). This is just as dangerous as its close relative.
The professional, who in 2009 published an article about dangerous spiders and did a thesis on the subject, mentioned that this species arrived in 2007 to the region and which has greater public health risk. Unlike their wild cousins \u200b\u200badapting to life at home and are two triangles on his back (in the form of an hourglass), which are white in his youth and adulthood have a brownish black coffee more like rest of his abdomen.
The novelty of this finding is that locally there were only records of false black widow in the north of the city (not passed from Enrique Abello), but there were no reports in the central sector. Every three months, the Instituto de la Patagonia receives inquiries from people in this type of arachnid, which prefer moist, dark places, although they are more dependent on their fabric as the black widow and more agile in it, to hunt from there.
Like his cousin also bite and their bite is poisonous, very similar but slightly weaker, but depending on the susceptibility of the patient may spend two to five days in bed. There seems to trigger an ugly blemish or scar necrotic but instead attacks the nervous system and pain is so intense that the person will reach the hospital.
Curiously, the region has 10 species of dangerous spiders (including wolf spider, a relative of the spider eating but not killer) and two indigenous varieties of false black widow (Steatoda ancorata and Steatoda sabulous).
specialist's recommendation is that the community try to keep as clean as possible and throw aracnicida home, not forgetting that these intrusive like to put on shoes.
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