False widows being hunted

comerla · 25-03-2023 8:58am #1

I came across one of those amazing scenes you occasionally see in nature last nigh - thought it was worth sharing.

We have a tunnel type web up at the top of our lean-to:

The spider curled up in here behind the circle never moves during the day: I thought it was just a big house spider. The Lean-to has quite a few false widows - some of them pretty big - but I've noticed some of them have been disappearing - there for a while and then gone (especially in this area). I also wondered how a native Irish spider was able to survive in an environment with so many false widows (after reading the research that FWs have 100* the venom potency of Irish spiders).

As I was coming in I saw movement up at the web and the spider in the web here was in the process of biting and finishing off a False Widow. Another Widow was attracted by the movement, started moving in towards the 'house spider' and his kill. The bigger spider dropped what he was doing and moved extremely fast - attacking the other widow. The widow dragged itself away spinning webs at the bigger spider. After a moment the bigger spider looked banjaxed for a short while - legs twitching. A minute later he picked himself up and started stalking the widow again. The Widow continued to drag itself as fast as it could to the other side of the Lean-to.

From reading up on this looks like it might be a Tube Web spider (Segestria florentina) or maybe a mouse spider. Would be interested in any insights anyone might have on this.

iwillhtfu · 25-03-2023 9:13am

Yep fairly sure there's some truth in that. I have the very same spider living up in a corner of the garage and I have noticed false widows seem to be fewer than they once were in there. They're lightning quick and the false widows I've seen are quite slow in comparison and tend to turtle when attacked.

I don't think they're the spiders you mention though. Seems to just be a big house spider now I've looked in it. Same story not active during the day but very active at night

comerla · 25-03-2023 9:15am

https://www.boards.ie/discussion/comment/120398919#Comment_120398919

Great to see something keeping them in check! Will take some photos later when its dark and they're all out and about again..

iwillhtfu · 25-03-2023 9:20am

https://www.boards.ie/discussion/comment/120398923#Comment_120398923

Yeah the FW was a bit of a nuisance as they were forever crawling into the kids toys. Thankfully none have been bitten not that I'd be concerned but there's always that chance they'd be allergic.

This is our resident doormans web 😂 Usually just sits beside his last meal there.

25-03-2023 9:24am

surely no native Irish spider is able to kill a false widow… not any house spider I’ve seen… or want to see 🥹

iwillhtfu · 25-03-2023 9:58am

https://www.boards.ie/discussion/comment/120398945#Comment_120398945

I'd tend to agree with you but I guess you're either hunter or prey and this fella used to be surrounded by FW and now it's just him on his own.

magicbastarder · 25-03-2023 10:06am

would the native spiders be better cold adapted and able to move faster at lower temps, possibly?

25-03-2023 10:20am

https://www.boards.ie/discussion/comment/120399017#Comment_120399017

Bigger is better… have you a pic of this spider out of its web?

comerla · 25-03-2023 10:24am

https://www.boards.ie/discussion/comment/120399037#Comment_120399037

Doubt it - the Widows are well able to move. Size is a factor I'd say. He definitely got a bite last night that knocked it out of him (I thought he was a goner) but he shook it off.

Will try and get a good photo later and hopefully someone who knows what they're talking about can ID.

iwillhtfu · 25-03-2023 10:34am

https://www.boards.ie/discussion/comment/120399067#Comment_120399067

I'll try grab one later but he's right over the door so usually runs as soon as I walk in. Looks like one of the large spiders you'd see running across the floor in the house at the start of winter.

Like this google pic

iwillhtfu · 25-03-2023 8:12pm

Best I could get. He's very camera shy 🤷‍♂️

magicbastarder · 25-03-2023 8:26pm

If it's a big one, probably a she.

iwillhtfu · 25-03-2023 8:44pm

True although assuming anything these days is my first mistake 🙈

Could just be a really lucky spider but whatever it's doing it can keep doing it. We do have a hungry robin nesting nearby also so he could be keeping the FW to a minimum.

comerla · 25-03-2023 8:56pm

Mine is being shy aswell - will keep an eye out and see if I can get a better shot later. This should give you an idea of the size

iwillhtfu · 25-03-2023 9:13pm

Looks very similar and a fw in shot aswell. Almost a grudge match 😂

magicbastarder · 25-03-2023 9:41pm

this is one of the inhabitants of my shed, albeit taken a year ago. not sure if she's still around.

a good two inches across.

25-03-2023 9:43pm

Are they another false widow?!

iwillhtfu · 25-03-2023 10:08pm

https://www.boards.ie/discussion/comment/120401048#Comment_120401048

That one above isn't a false widow but it would certainly give the auld ticker a jump start. 😬

I think that's a wolf spider or at least a sibling or on further google fu I see we have a brown recluse spider over here. https://www.rentokil.ie/spiders/species/ I never knew that https://en.wikipedia.org/wiki/Brown_recluse_spider

25-03-2023 10:16pm

^^^ I’m not sure bigger than false widow spiders being here is so reassuring. Might be time to launch into space and Nuke Ireland.

apache · 25-03-2023 10:16pm

I'd die if I came across one of these.

magicbastarder · 25-03-2023 10:26pm

spiders are bleedin' great. happy enough to share the shed with that lady.

comerla · 25-03-2023 11:17pm

Here it is...

CYHSN · 26-03-2023 10:38pm

On the topic of false widows, I had this fella staring back at me tonight, considering they are invasive I wanted to double check before I do kill it

https://ibb.co/Wsd2jtM

https://ibb.co/SsHTyFF

https://ibb.co/pj95F44

26-03-2023 10:47pm

I can recommend a vacuum cleaner.

Boardnashea · 20-04-2023 2:07pm

Really interesting OP.

If you want to get her out of her web for a photo shoot, bring out your electric toothbrush, without the brush head, and place the operating metal tip on the edge of the web. It is like the smell of bacon for me! Has me out of bed like a shot! She will come charging out for lunch. Just make sure you have your camera ready.

comerla · 20-04-2023 7:53pm

https://www.boards.ie/discussion/comment/120499745#Comment_120499745

Great idea - worked well. I've been keeping an eye on this area since - and there are no widows at all in this area and the rest of the Lean To is infested. She moves quickly!

https://streamable.com/px8bq7

20-04-2023 9:51pm

Have we found out what type of spider this heroic Irish spider is?

comerla · 20-04-2023 10:05pm

Seems to look very like iwillhtfu's pic - which is of a giant house spider.

21-04-2023 6:04am

Can’t open

Boardnashea · 21-04-2023 2:20pm

https://www.boards.ie/discussion/comment/120501140#Comment_120501140

Well done. I hope you flossed too! 😊

10-10-20 · 04-05-2023 10:14am

I can tell a similar story about my steel shed.

It was invaded by false-widow spiders soon after it was installed in 2009 and they were notable by their scattered web shape, bulbous bodies and threatening demeanor. Over the covid lockdown I noticed a false-widow which was annoyingly at the back of my tool box, but I left him there doing his thing. He had flies, spiders and woodlouse shells thrown around the lid of the box, a real sign of his cannibalistic ways.

Directly above the toolbox was a light-switch which is mounted with a 2cm gap at it's rear due to the corrugated shape of the shed walls. Within this gap a large wolf/house spider setup house last summer and was regularly seen with his legs poking out, but would hide if the switch was flicked. Soon after the wolf appeared the local false-widow disappeared and as of about November I could find no false-widows in their usual hiding spots!

I'm not saying that the wolf chased or ate all of the false-widows, but as of April I still don't have the same population of spiders to what I used to have, but a lot of the dense conical webs under the shed window appear to be back.

I dunno, I'll review again in mid/late summer and see what I see.

04-05-2023 2:51pm

https://www.boards.ie/discussion/comment/120553509#Comment_120553509

Great to hear.

Delboy5 · 26-07-2023 8:58am

Found this outside today, is it a false widow?

Spider.jpg

DownByTheGarden · 26-07-2023 9:12am

We were infested with false widows. both in our old house and in our new one.

In the old house the shed was full of them and similar to the accounts above I noticed a few very big wolf spiders in the garage one day and much fewer false widows. Most of the false widows I had seen after the wolf spiders moved in moved outside. Only to be seen at the edges of the windows.

Found a spider as big as my had in the bath a couple of years ago. Never saw one so big in my life. If I were a false widow I would be running away from that one.

bleaks · 01-08-2023 3:04pm

Was fly spraying the little vents around my windows earlier and out popped a family of false widows. I sprayed them with raid and any egg nests that were on the windows too in a bit of a panic. Hoping there isn't an infest in my house now as then I found a little bugger on the inside that was feeding on a bluebottle with the strewn corpse of a daddy long legs not far away (that I thought were predators to false widows, but obviously not this one).

Is there any deterrents I can use to put on windowsills inside the house!?

iwillhtfu · 09-08-2023 10:37pm

So my auld spider finally came to the junction of **** around and find out. 🙈 I now have the biggest false widow I've ever seen moved onto his patch.

Due to the location I had to try send the FW on his way but they are fast buggers.

Gave up and just dismantled the web. No doubt I'll find the FW hiding under something else shortly. I did dispatch a few more FW whilst I was out there but doing some work in the garden today it was good to see a nice healthy selection of native spiders about.

False widows being hunted

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