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 Species of the Week – House Spider (Tegenaria domestica)

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Join date : 1970-01-01

PostSubject: Species of the Week – House Spider (Tegenaria domestica)   Wed Sep 18, 2013 10:15 am

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Spider mating season is here!

House Spiders are probably the best known (and most hated) spiders in Ireland and this time of year we´ll see increased number of these feared arachnids in our houses and garden sheds.

Females usually prefer living indoors, sometimes residing the same spot for years if undisturbed.
The ones you see running around on the floor are males. They spent most of the time outside, but are now entering the houses to search for females.

After a male has located a female, he stays with her in her web for few weeks, mates with her several times and eventually dies. The female does not kill him, but will eat his dead body as the nutrients within the male will contribute to the development of his young.

In late autumn the female makes an egg sac containing up to 50 eggs and places it in the very tip of her funnel web. The spiderlings usually hatch in April and go over seven molts to reach adulthood.

House spiders are active and agile hunters, relying on their vision, speed and web mechanisms. They are very precise in their movements. Instead of following a continuous pattern, they usually move in short intervals, stopping several times before deciding where to head next. Males will wander aimlessly around the house if undisturbed, but will soon switch to the running interval if prey or threat is spotted.

The web is funnel-shaped and usually reaching for the corner, where the spider resides. When an insect falls onto the web, the spider dashes out from its retreat, seizes the prey and returns to the corner to consume its meal.

Tegenaria domestica is found all around the world and is common and widespread in Ireland, UK and continental Europe.

What do you think about these autumn visitors? Are they welcome in your house? How loud do you scream when you see one running around? Let us know!

Images by Sanchom, Spblat and Tony Atkin – Wikimedia Commons
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Join date : 2012-03-06
Posts : 6142

PostSubject: Re: Species of the Week – House Spider (Tegenaria domestica)   Wed Sep 18, 2013 5:59 pm

I think all the spiddies around here know that our house is a safe haven for them, they do not only live here themselves but bring up their little spiddy families. Some spids however are not very good mums though but a scorpion, who is also an arachnid, is a very good mum.

We have seen babies hatch out here and mum has been elsewhere (probably having a iong sleep LOL).


Jo xx
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